Maintenance and Service Guide HP ProDesk 400 G2 Microtower HP ProDesk 480 G2 Microtower HP ProDesk 490 G2 Microtower
© Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Intel and Pentium are trademarks of Intel Corporation in the U.S. and other countries. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. Microsoft, Windows, WIndows 7, and Windows 8 are U.S. registered trademarks of the Microsoft group of companies. SD Logo is a trademark of its proprietor.
Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place the device directly on your lap or obstruct the device air vents. Use the device only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation.
iv Safety warning notice
Table of contents 1 Product features ........................................................................................................................................... 1 Standard configuration features ........................................................................................................................... 1 Front panel components .......................................................................................................................................
Cleaning the keyboard ...................................................................................................................... 22 Cleaning the monitor ......................................................................................................................... 23 Cleaning the mouse ........................................................................................................................... 23 Service considerations .....................................................
Processor ............................................................................................................................................................. 58 Speaker ................................................................................................................................................................ 60 Fan .....................................................................................................................................................................
POST error messages ................................................................................................................................. 118 POST numeric codes and text messages .......................................................................................................... 118 Interpreting POST diagnostic front panel LEDs and audible codes .................................................................. 125 9 Password security and resetting CMOS ..................................
Appendix B Statement of Volatility ................................................................................................................ 146 Appendix C Specifications ............................................................................................................................. 148 Index ...........................................................................................................................................................
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1 Product features Standard configuration features Features may vary depending on the model. For support assistance and to learn more about the hardware and software installed on your computer model, run the HP Support Assistant utility.
Front panel components Drive configuration may vary by model. Some models have a bezel blank covering the optical drive bay. 1 Slim Optical Drive (optional) 5 Hard Drive Activity Light 2 Dual-State Power Button 6 USB 3.0 Ports (blue) 3 Microphone Connector 7 Headphone Connector 4 SD Card Reader NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with the computer and it is displaying a diagnostic code.
Rear panel components — HP ProDesk 400 G2 and 480 G2 models Several different rear panels are available. Refer to the following image that matches your computer. 1 Power Cord Connector 7 Line-Out Connector for powered audio devices (green) 2 Line-In Audio Connector (blue) 8 DVI-D Monitor Connector 3 VGA Monitor Connector 9 USB 2.
1 Power Cord Connector 7 Line-Out Connector for powered audio devices (green) 2 Line-In Audio Connector (blue) 8 USB 2.0 Ports (black) 3 RJ-45 Network Connector 9 VGA Monitor Connector 4 Serial Connector 10 DisplayPort Monitor Connector 5 PS/2 Mouse Connector (green) 11 USB 2.0 Ports 6 Voltage Select Switch (included on some models only) 12 PS/2 Keyboard Connector (purple) NOTE: An optional second serial port and an optional parallel port are available from HP.
1 Power Cord Connector 7 Line-Out Connector for powered audio devices (green) 2 Line-In Audio Connector (blue) 8 DVI-D Monitor Connector 3 VGA Monitor Connector 9 USB 2.0 Ports (black) 4 RJ-45 Network Connector 10 USB 3.0 Ports (blue) 5 PS/2 Mouse Connector (green) 11 Serial Connector 6 Voltage Select Switch (included on some models only) 12 PS/2 Keyboard Connector (purple) NOTE: An optional second serial port and an optional parallel port are available from HP.
Rear panel components — HP ProDesk 490 G2 models 1 Power Cord Connector 7 Line-Out Connector for powered audio devices (green) 2 Line-In Audio Connector (blue) 8 DVI-D Monitor Connector 3 VGA Monitor Connector 9 USB 2.0 Ports (black) 4 RJ-45 Network Connector 10 USB 3.
Serial number location Each computer has a unique serial number and a product ID number that are located on the exterior of the computer. Keep these numbers available for use when contacting customer service for assistance.
2 Activating and Customizing the Software NOTE: This chapter provides information for both Windows 7 and Windows 8. Activating and customizing the software in Windows 7 If your computer was not shipped with a Windows® operating system, some portions of this documentation do not apply. Additional information is available in online help after you activate the operating system. CAUTION: Do not add optional hardware or third-party devices to the computer until the operating system is successfully activated.
Installing or upgrading device drivers When installing optional hardware devices after the operating system installation is complete, you must also install the drivers for each of the devices. In Windows 7, if prompted for the i386 directory, replace the path specification with C:\i386, or use the Browse button in the dialog box to locate the i386 folder. This action points the operating system to the appropriate drivers.
Customizing the monitor display You can customize display settings for Windows 8 separately for the Start screen and the Desktop. To customize the Start screen: 1. Point to the upper-right or lower-right corner of the Start screen to display the charms. 2. Click Settings > Change PC Settings. 3. Click Personalize to change the display settings. To customize the Desktop: 10 1. Click the Desktop app on the Start screen. 2.
3 Illustrated parts catalog NOTE: HP continually improves and changes product parts. For complete and current information on supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions.
Item Description (1) Front bezel For use in all countries and regions except for the People’s Republic of China For use in the People’s Republic of China (2) Access panel Power supply (3) 300W, regular 300W, Energy Star 5.0 300W, Active PFC + SEPA 300W, Active PFC (4) 180W, regular 180W, Energy Star 5.0 180W, Active PFC (5) Memory modules (PC3,12800, CL11) 8-GB 4-GB 2-GB System board (includes replacement thermal material) (6) (7) (8) HP ProDesk 400 models: ● Without Windows 8.
Item Description Intel Core i7 4790S (3.2-GHz, 6-MB L3 cache) Intel Core i7 4771 (3.5-GHz, 8-MB L3 cache) Intel Core i7 4770 (3.4-GHz, 8-MB L3 cache) Intel Core i7 4770s (3.1-GHz, 8-MB L3 cache) Intel Core i5 4690 (3.5-GHz, 6-MB L3 cache) Intel Core i5 4690S (3.2-GHz, 6-MB L3 cache) Intel Core i5 4670 (3.4-GHz, 6-MB L3 cache) Intel Core i5 4670s (3.1-GHz, 6-MB L3 cache) Intel Core i5 4590 (3.3-GHz, 6-MB L3 cache) Intel Core i5 4590S (3.0-GHz, 6-MB L3 cache) Intel Core i5 4570 (3.
Cables Item Description (1) SATA data cable, hard drive, 10 inch, two straight ends (2) SATA data cable, 10 inch, one straight end, one right angled end SATA data cable, 14 inch, one straight end, one right angled end SATA data cable, 14 inch, one straight end, one right angled end DisplayPort cable DMS-59 to dual VGA cable DMS-59 to dual DVI cable Adapters USB 3.0-to-USB 2.0 (200 mm) USB 3.0-to-USB 2.
Misc parts Item Description (1) Fan sink (includes replacement thermal material) Standard BFR/PVC free (2) Speaker (3) Fan Standard Non-recycled (4) Front I/O assembly (5) Fan vent cover for use in models without a chassis fan WLAN modules Misc parts 15
Item Description HP WLAN 802.11 a/b/g/n + Bluetooth 4.0 Intel Dual Band Wireless-N 7260NB 802.11 a/b/g/n 2x2 WiFi + BT4.0 Card reader Optical drive bezel blank Grommet (hard drive screw, blue) WLAN antennas Clamp lock HP Ultraslim Keyed Cable Lock Drive adapters: Hard drive carrier, 2.5-inch to 3.5-inch Drive adapter, 2.5-inch Removable frame carrier (installs in optical drive bay; includes adapter for 2.
Drives Description Hard drives and solid-state drives (SSDs) 2 TB, 7200 rpm, 3.5 inch 1 TB, hybrid SSD, 2.5-inch 1 TB, 7200 rpm, 3.5 inch 500 GB, 7200 rpm, 2.5 inch, self-encrypting (SED) 500 GB, hybrid SSD, 2.5 inch 500 GB, 7200 rpm, 3.5 inch 500 GB, 7200 rpm, 2.5 inch 500 GB, 5400 rpm, 2.
PCI boards Description (1) AMD Radeon HD8350 DH PCIe x16 graphics card, 1 GB (2) Nvidia NVS310 PCIe x16 graphics card, 512 MB (3) Nvidia GeForce GT630 DP PCIe x16 graphics card, 2 GB Nvidia NVS315 PCIe x16 graphics card, 1 GB AMD Radeon HD8490 DP PCIe x16 graphics card, 1 GB AMD Radeon HD8470 PCIe x16 graphics card, 2 GB (for use only in the People’s Republic of China) AMD Radeon R9 255 graphics card, 2 GB- 18 (4) DisplayPort connector module (5) Intel PRO/1000 single port GbE NIC, includes brack
4 Routine care, SATA drive guidelines, and disassembly preparation This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service. CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
Preventing electrostatic damage to equipment Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories. ● To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes. ● Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
Recommended materials and equipment Materials and equipment that are recommended for use in preventing static electricity include: ● Antistatic tape ● Antistatic smocks, aprons, or sleeve protectors ● Conductive bins and other assembly or soldering aids ● Conductive foam ● Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance ● Static-dissipative table or floor mats with hard tie to ground ● Field service kits ● Static awareness labels ● Wrist straps and footwea
● Never cover the ventilation slots on the monitor with any type of material. ● Install or enable power management functions of the operating system or other software, including sleep states. Routine care General cleaning safety precautions 1. Never use solvents or flammable solutions to clean the computer. 2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. 3.
● If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is available through many electronic supply outlets. CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are improperly removed or installed, the keyboard may not function properly. ● Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed out. Be careful not to wipe away lubricants necessary for proper key functions.
Screws The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations. CAUTION: Metric screws have a black finish. U.S. screws have a silver finish and are used on hard drives only.
NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the general household waste. In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP, their authorized partners, or their agents. SATA hard drives Serial ATA Hard Drive Characteristics Number of pins/conductors in data cable 7/7 Number of pins in power cable 15 Maximum data cable length 39.
26 ● Some flat ribbon cables come prefolded. Never change the folds on these cables. ● Do not bend any cable sharply. A sharp bend can break the internal wires. ● Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius. ● Never crease a SATA data cable. ● Do not rely on components like the drive cage, power supply, or computer cover to push cables down into the chassis. Always position the cables to lay properly by themselves.
5 Removal and replacement procedures: Microtower NOTE: HP continually improves and changes product parts. For complete and current information on supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. Adherence to the procedures and precautions described in this chapter is essential for proper service.
Access panel To access internal components, you must remove the access panel: 28 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Loosen the thumbscrew on the rear of the computer (1) then slide the panel back (2) and lift if off the computer (3).
Front bezel Description Front bezel for use in all countries and regions except for the People’s Republic of China Front bezel for use in the People’s Republic of China 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Remove the access panel (Access panel on page 28) 3. Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2).
Optical drive bezel blank On some models, there are bezel blanks covering the slim optical drive, 3.5-inch, and 5.25-inch drive bays that need to be removed before installing a drive. To remove a bezel blank: 30 1. Remove the access panel (Access panel on page 28) 2. Remove the front bezel (Front bezel on page 29) 3. To remove the bezel blank, press upward on the bottom tab and press downward on the top tab on the right side of the blank (1), and then rotate the blank off the front of the bezel (2).
Memory Description 8-GB, PC3-12800 4-GB, PC3-12800 2-GB, PC3-12800 The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3-SDRAM) dual inline memory modules (DIMMs). DIMMs HP ProDesk 400 G2 and 480 G2 models The memory sockets on the system board can be populated with up to two industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.
Populating DIMM sockets (HP ProDesk 400 G2 and 480 G2 models) There are two DIMM sockets on the system board, with one socket per channel. The sockets are labeled DIMM1 and DIMM3. Socket DIMM1 operates in memory channel B. Socket DIMM3 operates in memory channel A. The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the DIMMs are installed.
Installing DIMMs CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board. The memory module sockets have gold-plated metal contacts.
Expansion cards Nvidia NVS310 PCIe x16 graphics card, 512 MB Nvidia NVS315 PCIe x16 graphics card, 1 GB AMD Radeon HD8490 DP PCIe x16 graphics card, 1 GB AMD Radeon HD8470 PCIe x16 graphics card, 2 GB (for use only in the People’s Republic of China) AMD Radeon HD8350 DH PCIe x16 graphics card, 1 GB AMD Radeon R9 255 PCIe x16 graphics card, 2 GB Nvidia GeForce GT630 DP PCIe x16 graphics card, 2 GB Intel PRO/1000 single port GbE NIC, includes bracket Serial port, PCI card Printer port, PCI card HP ProDesk 40
3. Remove the screw that holds down the expansion card retention latch (1) then slide the latch up (2) and pull it off the rear of the chassis (3). 4. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot on the back of the computer chassis. 5. Before installing an expansion card, remove the expansion slot cover or the existing expansion card.
b. If you are removing a PCI Express x1 card, hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket. Lift the card straight up (1) then away from the inside of the chassis (2) to remove it. Be sure not to scrape the card against other components. c.
8. To install a new expansion card, hold the card just above the expansion socket on the system board then move the card toward the rear of the chassis (1) so that the bottom of the bracket on the card slides into the small slot on the chassis. Press the card straight down into the expansion socket on the system board (2). NOTE: When installing an expansion card, press firmly on the card so that the whole connector seats properly in the expansion card slot. 9.
Drives Description Optical drives DVD±RW drive DVD-ROM drive Blu-ray BD-RW SuperMulti XL Drive Hard drives and solid-state drives (SSDs) 2 TB, 7200 rpm, 3.5 inch 1 TB, hybrid SSD, 2.5-inch 1 TB, 7200 rpm, 3.5 inch 500 GB, 7200 rpm, 2.5 inch, self-encrypting (SED) 500 GB, hybrid SSD, 2.5 inch 500 GB, 7200 rpm, 3.5 inch 500 GB, 7200 rpm, 2.5 inch 500 GB, 5400 rpm, 2.
HP ProDesk 490 G2 models: ● The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on the system board labeled SATA0. ● Connect secondary hard drives and optical drives to one of the light blue SATA connectors on the system board (labeled SATA1 and SATA4). HP has provided four extra 6-32 hard drive mounting screws installed on the front of the chassis behind the bezel (1). The mounting screws are required for 3.5-inch and 2.
Drive positions 1 Slim optical drive bay 2 3.5-inch internal hard drive bay 3 2.5-inch internal hard drive bay 4 3.5-inch internal hard drive bay NOTE: The drive configuration on your computer may be different than the drive configuration shown above. NOTE: The upper hard drive bay can contain either a 3.5-inch hard drive or a 2.5-inch hard drive, but not both. To verify the type and size of the storage devices installed in the computer, run Computer Setup.
Removing a slim optical drive CAUTION: All removable media should be taken out of a drive before removing the drive from the computer. 1. Prepare the computer for disassembly (Preparation for disassembly on page 27) 2. Remove the access panel (Access panel on page 28) 3. Remove the front bezel (Front bezel on page 29) 4. Disconnect the power cable and data cable from the back of the optical drive.
4. Align the small pins on the release latch with the small holes on the side of the drive and press the latch firmly onto the drive. 5. Slide the optical drive through the front bezel (1) all the way into the bay so that the green latch locks onto the chassis frame (2). 6. Connect the power cable and data cable to the back of the optical drive. 7. If installing a new drive, connect the opposite end of the data cable to one of the white SATA connectors (labeled SATA4 or SATA5) on the system board.
Removing a 3.5-inch hard drive NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive. 1. Prepare the computer for disassembly (Preparation for disassembly on page 27) 2. Remove the access panel (Access panel on page 28) 3. Remove the front bezel (Front bezel on page 29) 4. Disconnect the power cable and data cable from the back of the hard drive. 5.
Installing a 3.5-inch hard drive 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Remove the access panel (Access panel on page 28). 3. Remove the front bezel (Front bezel on page 29). Remove the front bezel. If you are installing a drive in a bay covered by a bezel blank, remove the bezel blank. 4. Slide the drive into the drive bay (1) and install the four 6-32 mounting screws (2) to secure the drive in place.
Removing a 2.5-inch hard drive NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive. 1. Prepare the computer for disassembly (Preparation for disassembly on page 27) 2. Remove the access panel (Access panel on page 28) 3. Disconnect the power cable and data cable from the back of the hard drive. 4. Disconnect the power cable and data cable from the back of the hard drive. 5.
Installing a 2.5-inch hard drive 1. Prepare the computer for disassembly (Preparation for disassembly on page 27) 2. Remove the access panel (Access panel on page 28) 3. Slide the drive into the drive bay (1) and install the four 6-32 mounting screws (2) to secure the drive in place. NOTE: HP has supplied four extra 6-32 mounting screws on the front of the chassis behind the bezel. Refer to Drives on page 38 for an illustration of the location of the extra mounting screws.
WLAN module Description HP WLAN 802.11 a/b/g/n + Bluetooth 4.0 Intel Dual Band Wireless-N 7260NB 802.11 a/b/g/n 2x2 WiFi + BT4.0 You can install a WLAN module using a PCIe expansion card. The module is secured to the expansion card with two Phillips screw and has two connected antennas. To remove the WLAN module: 1. Prepare the computer for disassembly (Preparation for disassembly on page 27) 2. Remove the access panel (Access panel on page 28) 3.
48 5. Remove the two Phillips screws (2) that secure the module to the PCIe card. 6. Lift the module to a 45-degree angle, and then pull it away to remove it from the socket (3). 7. To install a WLAN module in the socket on the PCIe card, noting the notch (1) in the socket, insert the module into the socket (2). 8. Press the module down into place (3). 9. Tighten the two Phillips screws (4) that secure the module to the PCIe card.
10. Connect the antenna cables from the module (5).
RTC battery The battery installed on the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer has a 3-volt lithium coin cell battery installed. WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury: Do not attempt to recharge the battery.
Type 2 a. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery. When the battery pops up, lift it out (1). b. To insert the new battery, slide one edge of the replacement battery under the lip of the holder with the positive side up. Push the other edge down until the clamp snaps over the other edge of the battery (2). Type 3 a. Pull back on the clip (1) that is holding the battery in place, and remove the battery (2). b.
7. Reset the date and time, your passwords, and any special system setups using Computer Setup. 8. Lock any security devices that were disengaged when the computer access panel was removed. DisplayPort connector module 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Remove the access panel (Access panel on page 28). 3. From the outside, rear of the computer, remove the Torx T15 screw that secures the DisplayPort module to the computer. NOTE: 4.
Front I/O and power switch assembly 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Remove the access panel (Access panel on page 28). 3. Remove the front bezel (Front bezel on page 29). 4. From the inside of the computer, disconnect the three front I/O cables from the following system board connectors: ● PB/LED ● FRONT USB3.0 ● FRONT AUD NOTE: System board layout may vary.
HP ProBook 480 G2 models 54 5. Remove the cables from the metal clip built into the base pan. 6. From the front of the computer, remove the Torx T15 screw (1) that secures the assembly to the chassis.
7. Press the latch on the left side of the assembly (2), and then rotate the left side of the assembly into the chassis (3). 8. From the inside of the chassis, remove the assembly from the computer. To reinstall the assembly, reverse the removal procedure.
Fan sink Description Fan sink, standard Fan sink, BFR/PVC free WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system components to cool before touching. NOTE: System board appearance may vary. 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Remove the access panel (Access panel on page 28). 3.
4. Lift the fan sink from atop the processor. CAUTION: Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heat sink on the processor. This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board.
Processor Description Intel Core i7 4790 (3.6-GHz, 6-MB L3 cache) Intel Core i7 4790S (3.2-GHz, 6-MB L3 cache) Intel Core i7 4771 (3.5-GHz, 8-MB L3 cache) Intel Core i7 4770 (3.4-GHz, 8-MB L3 cache) Intel Core i7 4770s (3.1-GHz, 8-MB L3 cache) Intel Core i5 4690 (3.5-GHz, 6-MB L3 cache) Intel Core i5 4690S (3.2-GHz, 6-MB L3 cache) Intel Core i5 4670 (3.4-GHz, 6-MB L3 cache) Intel Core i5 4670s (3.1-GHz, 6-MB L3 cache) Intel Core i5 4590 (3.3-GHz, 6-MB L3 cache) Intel Core i5 4590S (3.
3. Remove the fan sink (Fan sink on page 56). 4. Rotate the locking lever to its full open position (1). 5. Raise and rotate the microprocessor retainer to its fully open position (2). 6. Carefully lift the processor from the socket (3). CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile and handling them could cause irreparable damage. Once pins are damaged it may be necessary to replace the system board.
Speaker 60 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Remove the access panel (Access panel on page 28). 3. From the outside front of the chassis, remove the two Torx T15 screws that secure the speaker to the front of the chassis. 4. From the inside of the chassis, disconnect the speaker cable from the system board connector labeled SPKR.
5. Under the drive cage, remove the speaker cable from the clip built into the base of the chassis (1), and then remove the speaker from the chassis (2). To replace the speaker, reverse the removal procedures.
Fan Description Fan Fan, non-recycled 62 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Remove the access panel (Access panel on page 28). 3. From the outside, rear of the chassis, remove the three Phillips screws that secure the fan to the chassis. 4. From the inside of the chassis, disconnect the fan control cable (1) from the system board connector labeled CHFAN2.
5. Lift the fan out of the chassis (2). To install the fan, reverse the removal procedure. Be sure to orient the air flow out of the computer.
Power supply NOTE: System board appearance may vary. Description 300W, Energy Star 5.0 300W, Active PFC + SEPA 300W, Active PFC 300W, regular 180W, Energy Star 5.0 180W, Active PFC 180W, regular 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2. Remove the access panel (Access panel on page 28). 3. Disconnect the power cables from the installed drives and the system board connectors: NOTE: Installed drives may vary.
Power supply connectors connect to the drives as follows: ● P3 connector: primary hard drive ● P5 connector: primary optical drive ● P4 connector: secondary hard drive Power supply 65
4. 66 From the outside rear of the chassis, remove the four silver Torx T15 screws that secure the power supply to the chassis.
5. From the inside of the chassis, press the power supply release button (1), slide the power supply toward the front of the computer (2) , rotate slightly into the computer so the power supply clears the lip on the top of the chassis, and then lift the power supply out of the chassis (3). To install the power supply, reverse the removal procedure.
System board NOTE: All system board spare part kits include replacement thermal material. NOTE: System board appearance may vary. Description System board for use in models without Windows 8.1 System board for use in models with Windows 8.1 Standard System board for use in models with Windows 8.1 Professional System board for use in models with NetClone (the People’s Republic of China only) 68 1. Prepare the computer for disassembly (Preparation for disassembly on page 27). 2.
6. Slide the system board toward the front of the computer to disengage the I/O panel, and then lift the system board out of the computer. When reinstalling the system board, first insert the I/O panel back into the slots in the rear of the chassis, and then align the board with the chassis screw holes. NOTE: When replacing the system board, you must change the chassis serial number in the BIOS.
HP ProDesk 400 G2 system board callouts 70 Sys Bd Label Sys Bd Connector Color Component Sys Bd Label Sys Bd Connector Color Component COMB Serial Port Black Optional second serial port BAT Battery socket Black RTC battery PWRCPU Processor power connector White 4-pin processor power MEDIA External media connector Black External media device Processor Processor socket Silver Processor FRONT USB not used Blue not used CMOS CMOS button Yellow Reset CMOS SPKR Speaker conne
PWR Power connector White 24-pin main power connector X1PCIEXP1 PCI Express x1 Black Expansion card PSWD Password jumper Green Clear system passwords X16PCIEXP PCI Express x16 Black Expansion card SATA4 SATA 2.0 Light blue Optical drive IN/OUT Input and output jacks Silver Headphone and microphone jacks SATA5 SATA 2.0 White Optical Drive CHFAN2 Chassis fan connector Red Rear chassis fan SATA0 SATA 3.
72 Sys Bd Label Sys Bd Connector Color Component Sys Bd Label Sys Bd Connector Color Component PWRCPU Processor power connector White 4-pin processor power PB/LED Front I/O Black Front I/O/power switch COMB Serial Port Black Optional second serial port MEDIA External media connector Black External media device Processor Processor socket Silver Processor FRONT USB not used Blue not used CPUFAN Processor fan connector White Processor fan CMOS CMOS button Yellow Reset CM
HP ProDesk 490 G2 system board callouts System Board Label System Board Connector Color Component System Board Label System Board Connector Color Component COMB Serial Port Black Optional second serial port FRONT USB3.0 Front I/O Blue Front I/O/power switch PWRCPU Processor power connector White 4-pin processor power MEDIA 3.
74 DIMM3 DIMM3 (Channel A) White Memory module X1PCIEXP2 PCI Express x1 Black Expansion card DIMM4 DIMM4 (Channel A) Black Memory module X1PCIEXP1 PCI Express x1 Black Expansion card PWR Power connector White 24-pin main power connector X16PCIEXP PCI Express x16 Black Expansion card CMOS CMOS button Yellow Reset CMOS IN/OUT Input and output jacks Silver Headphone and microphone jacks PSWD Password jumper Green Clear system passwords DISPLAY DisplayPort Blue Optional D
6 Computer Setup (F10) Utility Computer Setup (F10) Utilities Use Computer Setup (F10) Utility to do the following: ● Change factory default settings. ● Set the system date and time. ● Set, view, change, or verify the system configuration, including settings for processor, graphics, memory, audio, storage, communications, and input devices. ● Modify the boot order of bootable devices such as hard drives, optical drives, or USB flash media devices.
Using Computer Setup (F10) Utilities Computer Setup can be accessed only by turning the computer on or restarting the system. To access the Computer Setup Utilities menu, complete the following steps: 1. Turn on or restart the computer. 2. Repeatedly press F10 when the monitor light turns green to access the utility. You can also press Esc to a menu that allows you to access different options available at startup, including the Computer Setup utility.
Computer Setup—File NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Computer Setup—Storage NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 6-2 Computer Setup—Storage Option Description Device Configuration Lists all installed BIOS-controlled storage devices. When a device is selected, detailed information and options are displayed. The following options may be presented: ● Hard Disk: Size, model, firmware version, serial number, connector color, SMART category.
Computer Setup—Security NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 6-3 Computer Setup—Security Option Description Setup Password Allows you to set and enable a setup (administrator) password. NOTE: If the setup password is set, it is required to change Computer Setup options, flash the ROM, and make changes to certain plug and play settings under Windows. Power-On Password Allows you to set and enable a power-on password.
Table 6-3 Computer Setup—Security (continued) System IDs Master Boot Record Security Allows you to set: ● Asset tag (18-byte identifier), a property identification number assigned by the company to the computer. ● Ownership tag (80-byte identifier) displayed during POST. ● Universal Unique Identifier (UUID) number. The UUID can only be updated if the current chassis serial number is invalid. (These ID numbers are normally set in the factory and are used to uniquely identify the system.
Table 6-3 Computer Setup—Security (continued) NOTE: DriveLock Security To enable this option, a Setup password must be set. Allows you to assign or modify a master or user password for hard drives. When this feature is enabled, the user is prompted to provide one of the DriveLock passwords during POST. If neither is successfully entered, the hard drive will remain inaccessible until one of the passwords is successfully provided during a subsequent cold-boot sequence.
Computer Setup—Power NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 6-4 Computer Setup—Power Option Description OS Power Management ● Runtime Power Management—Enable/Disable. Allows certain operating systems to reduce processor voltage and frequency when the current software load does not require the full capabilities of the processor. Default is enabled. ● Idle Power Savings—Extended/Normal.
Computer Setup—Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 6-5 Computer Setup—Advanced (for advanced users) Option Heading Power-On Options Allows you to set: ● POST mode (QuickBoot, Clear Memory, FullBoot, or FullBoot Every x Days). ◦ QuickBoot (default) = Do not clear memory or perform a memory test. ◦ FullBoot = Memory test (count) on cold boot. Clears memory on all boots. ◦ Clear Memory = No memory count on cold boot.
Table 6-5 Computer Setup—Advanced (for advanced users) (continued) Bus Options Device Options Allows you to enable or disable: ● PCI SERR# Generation. Default is enabled. ● PCI VGA Palette Snooping, which sets the VGA palette snooping bit in PCI configuration space; only needed when more than one graphics controller is installed. Default is disabled. Allows you to set: ● Turbo Mode (enable/disable).
7 Troubleshooting without diagnostics This chapter provides information on how to identify and correct minor problems, such as USB devices, hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions.
If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your service call is handled properly: ● Be in front of your computer when you call. ● Write down the computer serial number, product ID number, and monitor serial number before calling. ● Spend time troubleshooting the problem with the service technician. ● Remove any hardware that was recently added to your system. ● Remove any software that was recently installed.
● If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on the system. ● If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed (embedded video on some models only) and a single monitor, the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter.
Computer date and time display is incorrect. Cause Solution RTC (real-time clock) battery may need to be replaced. Reset the date and time under Control Panel (Computer Setup can also be used to update the RTC date and time). If the problem persists, replace the RTC battery. See the Removal and Replacement section for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement.
Poor performance. Cause Solution Processor is too hot. 1. Make sure airflow to the computer is not blocked. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow. 2. Make sure fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heat sink is installed properly. Hard drive is full. Transfer data from the hard drive to create more space on the hard drive. Low on memory.
Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing). Cause Solution Processor thermal protection activated: 1. Ensure that the computer air vents are not blocked and the processor cooling fan is running. 2. Open the access panel, press the power button, and see if the processor fan (or other system fan) spins.
Solving power problems Common causes and solutions for power problems are listed in the following table. Power supply shuts down intermittently. Cause Solution If equipped with a voltage selector, voltage selector switch on rear of computer chassis (some models) not switched to correct line voltage (115V or 230V). Select the proper AC voltage using the selector switch. Power supply will not turn on because of internal power supply fault. Replace the power supply.
Solving hard drive problems Hard drive error occurs. Cause Solution Hard disk has bad sectors or has failed. 1. In Windows 7, click Start, click Computer, and right-click on a drive. Select Properties, and then select the Tools tab. Under Error-checking click Check Now. In Windows 8, on the Start screen type e, and then select File Explorer from the list of applications. In the left column, expand Computer, right-click on a drive, select Properties, and then select the Tools tab.
Nonsystem disk/NTLDR missing message. Cause Solution The system is trying to start from the hard drive but the hard drive may have been damaged. ▲ Perform Drive Protection System (DPS) testing in system ROM. System files missing or not properly installed. 1. Insert bootable media and restart the computer. 2. Boot to the windows installation media and select the recovery option. If only a restore kit is available, then select the File Backup Program option, and then restore the system. 3.
Solving media card reader problems Media card will not work in a digital camera after formatting it in Windows. Cause Solution By default, Windows will format any media card with a capacity greater than 32MB with the FAT32 format. Some digital cameras use the FAT (FAT16 & FAT12) format and can not operate with a FAT32 formatted card. Either format the media card in the digital camera or select FAT file system to format the media card in a computer with Windows.
Do not know how to remove a media card correctly. Cause Solution NOTE: Never remove the card when the green LED is flashing After installing the media card reader and booting to Windows, the reader and the inserted cards are not recognized by the computer. Cause Solution The operating system needs time to recognize the device if the reader was just installed into the computer and you are turning the PC on for the first time.
Blank screen (no video). Cause Solution Monitor cable is plugged into the wrong connector. Systems may have a monitor connection on both the motherboard or an add-in card. Try moving the monitor connection to a different connector on the back of the computer Monitor settings in the computer are not compatible with the monitor. 1. In Control Panel, select Category from the View by list, then under Appearance and Personalization, select Adjust screen resolution.
Blank screen and the power LED flashes Red seven times, once every second, followed by a two second pause, and the computer beeps seven times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution System board failure (ROM detected failure prior to video). Replace the system board. Monitor does not function properly when used with energy saver features. Cause Solution Monitor without energy saver capabilities is being used with energy saver features enabled.
Image is not centered. Cause Solution Position may need adjustment. Press the monitor's Menu button to access the OSD menu. Select ImageControl/ Horizontal Position or Vertical Position to adjust the horizontal or vertical position of the image. “No Connection, Check Signal Cable” displays on screen. Cause Solution Monitor video cable is disconnected. Connect the video cable between the monitor and computer. CAUTION: Ensure that the computer power is off while connecting the video cable.
High pitched noise coming from inside a flat panel monitor. Cause Solution Brightness and/or contrast settings are too high. Lower brightness and/or contrast settings. Fuzzy focus; streaking, ghosting, or shadowing effects; horizontal scrolling lines; faint vertical bars; or unable to center the picture on the screen (flat panel monitors using an analog VGA input connection only).
Sound does not come out of the speaker or headphones. Cause Solution Software volume control is turned down or muted. Double-click the Speaker icon on the taskbar, then make sure that Mute is not selected and use the volume slider to adjust the volume. NOTE: In Windows 8, the taskbar is available at the bottom of the Desktop screen. Audio is hidden in Computer Setup. Enable the audio in Computer Setup: Security > Device Security > System Audio. The external speakers are not turned on.
Computer appears to be locked up while recording audio. Cause Solution The hard disk may be full. Before recording, make sure there is enough free space on the hard disk. You can also try recording the audio file in a compressed format. Line-in jack is not functioning properly. Cause Solution Jack has been reconfigured in the audio driver or application software. In the audio driver or application software, reconfigure the jack or set the jack to its default value.
Printer will not print. Cause Solution If you are on a network, you may not have made the connection to the printer. Make the proper network connections to the printer. Printer may have failed. Run printer self-test. Printer will not turn on. Cause Solution The cables may not be connected properly. Reconnect all cables and check the power cord and electrical outlet. Printer prints garbled information. Cause Solution The correct printer driver for the application is not installed.
Keyboard commands and typing are not recognized by the computer. Cause Solution Keyboard connector is not properly connected. Shut down the computer, reconnect the keyboard to the back of the computer, and then restart the computer. Program in use has stopped responding to commands. Shut down your computer using the mouse and then restart the computer. Keyboard needs repairs. See the Worldwide Limited Warranty for terms and conditions. Computer is in Sleep state.
Mouse does not respond to movement or is too slow. Cause Solution Mouse may need repair. See the Worldwide Limited Warranty for terms and conditions. Computer is in Sleep state. Press the power button to resume from Sleep state. CAUTION: When attempting to resume from Sleep state, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data. Mouse will only move vertically, horizontally, or movement is jerky.
Table 7-1 Solving Hardware Installation Problems (continued) A new device is not recognized as part of the system. Cause Solution To access Device Manager in Windows 7, click Start, select Control Panel, and then select Device Manager. To access Device Manager in Windows 8, from the Start screen, type c, select Control Panel from the list of applications, and then select Device Manager. USB ports on the computer are disabled in Computer Setup.
Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Graphics card (some models) is not seated properly or is bad, or system board is bad. For systems with a graphics card: 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board.
Table 7-2 Solving Network Problems (continued) Wake-on-LAN feature is not functioning. Cause Solution 1. From the Start screen, type c, and then select Control Panel from the list of applications. 2. Select Network and Sharing Center, and then click the Ethernet link next to the connection. 3. Click the Properties button. 4. Click the Configure button. 5. Click the Power Management tab, then enable the appropriate Wake-on LAN option. Network driver does not detect network controller.
Table 7-2 Solving Network Problems (continued) Network status link light never flashes. NOTE: The network status light is supposed to flash when there is network activity. Cause Solution To access Device Manager in Windows 7, click Start, select Control Panel, and then select Device Manager. To access Device Manager in Windows 8, from the Start screen, type c, select Control Panel from the list of applications, and then select Device Manager. Network driver is not properly loaded.
Network controller stopped working when an expansion board was added to the computer. Cause Solution Network controller interrupt is shared with an expansion board. Under the Computer Setup Advanced menu, change the resource settings for the board. The network controller requires drivers. Verify that the drivers were not accidentally deleted when the drivers for a new expansion board were installed. The expansion board installed is a network card (NIC) and conflicts with the embedded NIC.
Solving memory problems If you encounter memory problems, some common causes and solutions are listed in the following table. CAUTION: Power may still be supplied to the DIMMs when the computer is turned off (depending on the Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a memory module. For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory.
Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Memory is installed incorrectly or is bad. 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board.
Solving CD-ROM and DVD problems If you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the following table or to the documentation that came with the optional device. System will not boot from CD-ROM or DVD drive. Cause Solution The device is attached to a SATA port that has been hidden in the Computer Setup utility. Run the Computer Setup utility and ensure Device Available is selected for the device's SATA port in Security > Device Security.
Movie will not play in the DVD drive. Cause Solution Decoder software is not installed. Install decoder software. Damaged media. Replace media. Movie rating locked out by parental lock. Use DVD software to remove parental lock. Media installed upside down. Reinstall media. Cannot eject compact disc (tray-load unit). Cause Solution Disc not properly seated in the drive. Turn off the computer and insert a thin metal rod into the emergency eject hole and push firmly.
Solving USB flash drive problems If you encounter USB flash drive problems, common causes and solutions are listed in the following table. USB flash drive is not seen as a drive letter in Windows. Cause Solution The drive letter after the last physical drive is not available. Change the default drive letter for the flash drive in Windows. USB flash drive not found (identified). Cause Solution The device is attached to a USB port that has been hidden in Computer Setup.
A USB device, headphone, or microphone is not recognized by the computer. Cause Solution The correct device driver is not installed. 1. Install the correct driver for the device. 2. You might need to reboot the computer. 1. If possible, replace the cable. 2. Restart the computer. 1. Replace the device. 2. Restart the computer. The cable from the device to the computer does not work. The device is not working. USB ports on the computer are disabled in Computer Setup.
Unable to connect to the Internet. Cause Solution 4. Select the Cookies check box and click the Delete button. Cannot automatically launch Internet programs. Cause Solution You must log on to your ISP before some programs will start. Log on to your ISP and launch the desired program. Solving software problems Most software problems occur as a result of the following: ● The application was not installed or configured correctly. ● There is insufficient memory available to run the application.
Computer will not continue after HP logo screen displays. Cause Solution To access Automatic Repair: 1. Press the Windows logo + l to open the Settings charm. 2. Select Change PC Settings, select General, and then under Advanced startup, click Restart now. 3. Select Troubleshoot, select Advanced options, and then select Automatic Repair. Windows starts Automatic Repair. 4. Select the account to use to begin Automatic Repair, and type the password for the account.
8 POST error messages This appendix lists the error codes, error messages, and the various indicator light and audible sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the problem, and steps you can take to resolve the error condition. POST Message Disabled suppresses most system messages during POST, such as memory count and nonerror text messages. If a POST error occurs, the screen will display the error message.
Control panel message Description Recommended action 2. 162-System Options Not Set Configuration incorrect. Run Computer Setup and check the configuration in Advanced > Onboard Devices. RTC (real-time clock) battery may need to be replaced. 163-Time & Date Not Set In Computer Setup, set Advanced > Device Options > NIC PXE Option ROM Download to DISABLE to prevent PXE option ROM for the internal NIC from being downloaded during POST to free more memory for an expansion card's option ROM.
Control panel message Description Recommended action 219-ECC Memory Module Detected ECC Modules not supported on this Platform Recently added memory module(s) support ECC memory error correction. 1. If additional memory was recently added, remove it to see if the problem remains. 2. Check product documentation for memory support information. 1. Reconnect keyboard with computer turned off. 2. Check connector for bent or missing pins. 3. Ensure that none of the keys are depressed. 4.
Control panel message Description Recommended action 515-Power Supply fan not detected Power supply fan is not connected or may have malfunctioned. 1. Reseat power supply fan. 2. Reseat fan cable. 3. Replace power supply fan. 1. Check and/or replace cables. 2. Clear CMOS. (See Appendix B, Password security and resetting CMOS on page 128.) 3. Replace diskette drive. 4. Replace the system board. 1. Disconnect any other diskette controller devices (tape drives). 2. Clear CMOS.
Control panel message Description Recommended action 1720-SMART Hard Drive Detects Imminent Failure Hard drive is about to fail. (Some hard drives have a hard drive firmware patch that will fix an erroneous error message.) 1. Determine if hard drive is giving correct error message. Run the Drive Protection System test under using F2 Diagnostics when booting the computer. 2. Apply hard drive firmware patch if applicable. (Available at http://www.hp.com/support.) 3.
Control panel message 2204-Inventory error during MEBx execution 2205-Interface error during MEBx execution Description Recommended action BIOS information passed to the MEBx resulted in a failure. MEBx operation experienced a hardware error during communication with ME. 3. If the memory configuration was recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer. 4. If the error persists, replace the system board. 1. Reboot the computer. 2.
Control panel message Description Recommended action 2. If the error persists and system BIOS has been recently updated, restore previous system BIOS version. Otherwise, update the ME firmware version. 3. If the error still persists, replace the system board. Error occurred during MEBx execution which fails into the “General” grouping. Status information displayed along with the error provides further clarity into the failure.
Control panel message Description Recommended action 4. Parity Check 2 Parity RAM failure. Replace keyboard. Run Computer Setup and Diagnostic utilities. Interpreting POST diagnostic front panel LEDs and audible codes This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them.
Activity Beeps Possible cause Recommended action until failure occurs. Replace the device that is causing the failure. Continue adding devices one at a time to ensure all devices are functioning properly. Red Power LED flashes five times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Red Power LED flashes six times, once every second, followed by a two second pause.
Activity Beeps Possible cause Recommended action 3. Replace the system board. Reinstall the original processor. Red Power LED flashes eleven times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 11 The current processor does not support a feature previously enabled on this system. ▲ System does not power on and LEDs are not flashing. None System unable to power on.
9 Password security and resetting CMOS This computer supports security password features, which can be established through the Computer Setup Utilities menu. This computer supports two security password features that are established through the Computer Setup Utilities menu: setup password and power-on password. When you establish only a setup password, any user can access all the information on the computer except Computer Setup.
1. Shut down the operating system properly, then turn off the computer and any external devices, and disconnect the power cord from the power outlet. 2. With the power cord disconnected, press the power button again to drain the system of any residual power. WARNING! To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet, and allow the internal system components to cool before touching.
3. When the key icon appears, type your current password, a slash (/) or alternate delimiter character, your new password, another slash (/) or alternate delimiter character, and your new password again as shown: current password/new password/new password NOTE: 4. Type the new password carefully since the characters do not appear on the screen. Press Enter. The new password will take effect the next time the computer is restarted.
3. Remove the access panel. CAUTION: Pushing the CMOS button will reset CMOS values to factory defaults. It is important to back up the computer CMOS settings before resetting them in case they are needed later. Back up is easily done through Computer Setup. See Computer Setup (F10) Utility on page 75 for information on backing up the CMOS settings. 4. Locate, press, and hold the CMOS button in for five seconds. NOTE: Make sure you have disconnected the AC power cord from the wall outlet.
10 HP PC Hardware Diagnostics To help troubleshoot and diagnose failures, use the UEFI-based hardware diagnostic solution that HP includes on all products. This tool can even be used if the computer will not boot to the operating system. Why run HP PC Hardware Diagnostics The HP PC Hardware Diagnostic tools simplify the process of diagnosing hardware issues and expedite the support process when issues are found. The tools save time by pinpointing the component that needs to be replaced.
1. Go to http://www.hp.com. 2. Point to Support, located at the top of the page, and then click Download Drivers. 3. In the text box, enter the product name, and then click Go. – or – Click Find Now to let HP automatically detect your product. 4. Select your computer model, and then select your operating system. 5. In the Diagnostic section, click HP UEFI Support Environment. 6. Click Download, and then select Run.
11 System backup and recovery Backing up, restoring, and recovering in Windows 8.1 or Windows 8 Your computer includes tools provided by HP and Windows to help you safeguard your information and retrieve it if you ever need to. These tools will help you return your computer to a proper working state or even back to the original factory state, all with simple steps.
Using Reset when the system is not responding NOTE: You may be prompted by User Account Control for your permission or password when you perform certain tasks. To continue a task, select the appropriate option. For information about User Account Control, see Help and Support. From the Start screen, type help, and then select Help and Support. IMPORTANT: Reset does not provide backups of your information. Before using Reset, back up any personal information you wish to retain.
Recovery using Windows operating system media (purchased separately) To order a Windows operating system DVD, contact support. Go to http://www.hp.com/support, select your country or region, and follow the on-screen instructions. CAUTION: Using Windows operating system media completely erases the hard drive contents and reformats the hard drive. All files that you have created and any software that you have installed on the computer are permanently removed.
1. After you successfully set up the computer, create recovery media. This media can be used to reinstall the original operating system in cases where the hard drive is corrupted or has been replaced. See Creating recovery media on page 137. 2. As you add hardware and software programs, create system restore points. A system restore point is a snapshot of certain hard drive contents saved by Windows System Restore at a specific time.
NOTE: Do not use media cards for creating recovery media. The system may not be able to boot up from a media card and you may not be able to run system recovery. To create recovery discs: 1. Close all open programs. 2. Click the Start button, click All Programs, click Security and Protection, click Recovery Manager, and then click HP Recovery Media Creation. If prompted, click Yes to allow the program to continue. 3. Click Create recovery media using blank DVD(s), and then click Next. 4.
1. Select Start > All Programs > Productivity and Tools > HP Recovery Disc Creator. 2. Select Windows disk. 3. From the drop-down menu, select the drive for burning the recovery media. 4. Click the Create button to start the burning process. Label the disc after you create it, and store it in a secure place. After the Windows 7 operating system DVD has been created, create the Driver Recovery DVD: 1. Select Start > All Programs > Productivity and Tools > HP Recovery Disc Creator. 2.
1. Close all open programs. 2. Click the Start button, right-click Computer, and then click Properties. 3. Click System protection, System Restore, click Next, and then follow the on-screen instructions. System Recovery WARNING! This procedure will delete all user information. To prevent loss of information, be sure to back up all user information so you can restore it after recovery.
6. Under I need help immediately, click System Recovery. 7. Select Yes, and then click Next. Your computer restarts. 8. When the computer restarts, you will see the Recovery Manager welcome screen again. Under I need help immediately, click System Recovery. If you are prompted to back up your files, and you have not done so, select Back up your files first (recommended), and then click Next. Otherwise, select Recover without backing up your files, and then click Next. 9. System Recovery begins.
6. If Recovery Manager asks if you want to run System Recovery from Media or Hard Drive, select Media. On the Welcome screen, under I need help immediately, click Factory Reset. 7. If you are prompted to back up your files, and you have not done so, select Back up your files first (recommended), and then click Next. Otherwise, select Recover without backing up your files, and then click Next. 8. If you are prompted to insert the next recovery disc, do so. 9.
After the repair is completed: 1. Eject the Windows 7 operating system DVD and then insert the Driver Recovery DVD. 2. Follow the on-screen instructions to install the Hardware Enabling Drivers first, and then install Recommended Applications.
A Power cord set requirements The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
Country-specific requirements Additional requirements specific to a country are shown in parentheses and explained below. Country Accrediting Agency Country Accrediting Agency Australia (1) EANSW Italy (1) IMQ Austria (1) OVE Japan (3) METI Belgium (1) CEBC Norway (1) NEMKO Canada (2) CSA Sweden (1) SEMKO Denmark (1) DEMKO Switzerland (1) SEV Finland (1) SETI United Kingdom (1) BSI France (1) UTE United States (2) UL Germany (1) VDE 1.
B Statement of Volatility HP confirms that Intel-based business desktop HP ProDesk 400 G2 MicroTower and Small Form Factor, HP ProDesk 480 G2 MicroTower, HP ProDesk 490/498 G2 MicroTower systems contain DDR3 volatile memory (memory amount depends on the customer configuration).
9. Select File > Save Changes and Exit. 10. To clear the Setup or Power-On passwords if set, and clear any other settings, power down the computer and remove the AC power cord and the computer hood. 11. Locate the green two pin password jumper on header E49 (labeled PSWD) and remove it. 12. Remove the AC power, wait 10 seconds until the unit AC power has drained out, then press the clear CMOS button. This is typically a yellow push button (labeled CMOS). 13.
C Specifications Chassis Height 13.98 in 355 mm Width 6.50 in 165 mm Depth 14.10 in 358 mm Approximate Weight 14.33 lb 6.50 kg Operating 50° to 95°F 10° to 35°C Nonoperating -22° to 140°F -30° to 60°C Temperature Range NOTE: Operating temperature is derated 1.0° C per 300 m (1000 ft) to 3000 m (10,000 ft) above sea level; no direct sustained sunlight. Maximum rate of change is 10° C/Hr. The upper limit may be limited by the type and number of options installed.
Current Leakage with Energy Efficient Power Supply 1 2 <600uA / 230 VAC This system utilizes an active power factor corrected power supply. This allows the system to pass the CE mark requirements for use in the countries of the European Union. The active power factor corrected power supply also has the added benefit of not requiring an input voltage range select switch.
Index A access panel illustrated 12 locked 88 removal 28 audible codes 125 audio problems 99 B backup and recovery, Windows 7 136 Backup and Restore, Windows 7 139 backups creating Windows 7 137, 139 battery disposal 24 battery replacement 50 beep codes 125 booting options Full Boot 118 Quick Boot 118 C cable management 25 cable pinouts, SATA data 25 cautions AC power 19 cables 24 cooling fan 23 electrostatic discharge 19 keyboard cleaning 22 keyboard keys 23 CD-ROM or DVD problems 112 changing a Power-On p
I installing 2.5-inch hard drive 46 3.
S safety and comfort 85 safety precautions cleaning 22 SATA connectors on system board 25 data cable pinouts 25 hard drive characteristics 25 screws, correct size 24 serial number location 7 serial port, illustrated 18 service considerations 23 Setup password 129, 130 setup password 128 software problems 116 servicing computer 23 speaker illustrated 15 removal and replacement 60 specifications computer 148 memory 31 static electricity 19 system board illustrated 12 removal and replacement 68 SATA connectors
