Hardware Reference Guide HP ProDesk 400 G4 SFF Business PC
© Copyright 2017 HP Development Company, L.P. Windows is either a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer 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.
iv Safety warning notice
About This Book This guide provides basic information for upgrading the HP ProDesk Business PC. WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. NOTE: Text set off in this manner provides important supplemental information.
vi About This Book
Table of contents 1 Product features ........................................................................................................................................... 1 Standard configuration features ........................................................................................................................... 1 Front panel components .......................................................................................................................................
Grounding methods ............................................................................................................................................. 41 Appendix C Computer operating guidelines, routine care and shipping preparation ............................................. 42 Computer operating guidelines and routine care ............................................................................................... 42 Optical drive precautions ................................................
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. NOTE: This computer model can be used in a tower orientation or a desktop orientation.
Front panel components Drive configuration may vary by model. Some models have a bezel blank covering the slim optical drive bay. 1 Slim optical drive (optional) 5 Audio-out (headphone)/Audio-in (microphone) combo jack 2 Memory card reader 6 Hard drive activity light 3 USB 2.0 port 7 Dual-state power button 4 USB 2.
Rear panel components 1 Audio-in jack 5 VGA monitor connector 2 RJ-45 (network) jack 6 USB 2.0 ports (2) 3 Audio-out jack for powered audio devices 7 USB 3.x ports (4) 4 DisplayPort monitor connector 8 Power cord connector NOTE: When a device is plugged into the audio-in jack, a dialog box will open asking if you want to use the connector for a microphone line-in device or a headphone.
2 Hardware upgrades Serviceability features The computer includes features that make it easy to upgrade and service. No tools are needed for most of the installation procedures described in this chapter. A T15 Torx or flat-bladed screwdriver is needed for some of the installation procedures. Warnings and cautions Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and warnings in this guide.
Removing the computer access panel To access internal components, you must remove the access panel: 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as compact discs or USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices.
Replacing the computer access panel Place the panel on the computer (1), slide it forward (2), and tighten the thumbscrew (3) to secure the panel in place.
Removing the front bezel 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as compact discs or USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices.
Removing a slim optical drive bezel blank On some models, there is a bezel blank covering the slim optical drive bay that needs to be removed before installing an optical drive. To remove the bezel blank: 1. Remove the computer access panel and front bezel. See Removing the computer access panel on page 5 and Removing the front bezel on page 7. 2. To remove a slim optical drive bezel blank, press inward on the two retaining tabs (1) and pull the blank off the front bezel (2).
Changing from desktop to tower configuration The Small Form Factor computer can be used in a tower orientation with an optional tower stand that can be purchased from HP. 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as compact discs or USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4.
System board connectors Refer to the following illustration and table to identify the system board connectors for your model. 10 No. System Board Connector System Board Label Color Component 1 PCI Express x16 X16PCIEXP Black Expansion Card 2 PCI Express x4 X4PCIEXP Black Expansion Card 3 Battery BAT Black Memory Module 4 DIMM2 DIMM2 White Memory Module 5 DIMM1 DIMM1 White Memory Module 6 SATA 3.0 SATA0 Dark blue Primary Hard Drive 7 SATA 3.
Installing additional memory The computer comes with double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM) dual inline memory modules (DIMMs). DIMMs 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. To achieve the maximum memory support, you can populate the system board with up to 32-GB of memory configured in a high-performing dual channel mode.
assigned to single channel. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. ● In any mode, the maximum operational speed is determined by the slowest DIMM in the system. 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.
6. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive. 7. Press the release lever on the back of the drive (1), and then slide the drive through the front bezel (2).
14 8. Disconnect the data cable (1) and power cable (2) from the rear of the hard drive. 9. Press inward on the drive cage release latch (1), rotate the drive cage up (2), and then slide the tabs on the side of the drive cage out of the chassis (3).
10. Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Push the module down into the socket, ensuring that the module is fully inserted and properly seated. Make sure the latches are in the closed position (3). NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket.
12. Connect the power cable (1) and data cable (2) to the rear of the hard drive. 13. Slide the optical drive through the front bezel all the way into the bay (1) so that it locks in place (2).
14. Connect the power cable (1) and data cable (2) to the rear of the drive. 15. Replace the access panel. 16. Reconnect the power cord and any external devices, then turn on the computer. The computer should automatically recognize the additional memory. 17. Lock any security devices that were disengaged when the access panel was removed.
Removing or installing an expansion card The computer has one PCI Express x1 expansion socket and one PCI Express x16 expansion socket. NOTE: The PCI Express sockets support only low profile cards. You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 socket. For dual graphics card configurations, the first (primary) card must be installed in the PCI Express x16 socket. To remove, replace, or add an expansion card: 1.
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. Pull the expansion card straight up from the socket (1), then remove the card from the expansion slot cover tray (2).
c. 9. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket. Store the removed card in anti-static packaging. 10. If you are not installing a new expansion card, install an expansion slot cover to close the open slot.
12. Rotate the slot cover retention latch back in place to secure the expansion card. 13. Connect external cables to the installed card, if needed. Connect internal cables to the system board, if needed. 14. Replace the computer access panel. 15. Reconnect the power cord and any external devices, then turn on the computer. 16. Lock any security devices that were disengaged when the access panel was removed. 17. Reconfigure the computer, if necessary. Drive positions 1 Hard drive bay 2 9.
Removing and installing drives When installing drives, follow these guidelines: ● The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on the system board labeled SATA0. ● Connect an optical drive to the light blue SATA connector on the system board labeled SATA1.
Removing a 9.5 mm slim optical drive CAUTION: All removable media should be taken out of a drive before removing the drive from the computer. 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as compact discs or USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices.
Installing a 9.5 mm slim optical drive 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as compact discs or USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices.
8. Slide the optical drive through the front bezel all the way into the bay (1) so that it locks in place (2). 9. Connect the power cable (1) and data cable (2) to the rear of the drive. 10. Connect the opposite end of the data cable to the light blue SATA connector on the system board labeled SATA1. NOTE: Refer to System board connectors on page 10 for an illustration of the system board drive connectors. 11. Replace the front bezel if it was removed. 12. Replace the computer access panel. 13.
Removing and replacing a 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. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as compact discs or USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4.
8. Disconnect the data cable (1) and power cable (2) from the rear of the hard drive. 9. Press inward on the drive cage release latch (1), rotate the drive cage up (2), and then slide the tabs on the side of the drive cage out of the chassis (3). 10. Remove the hard drive from the drive cage. ● If you are removing a 3.5-inch hard drive, remove the four screws that secure the drive to the drive cage (1), and then slide the drive out of the cage (2).
● If you are removing a 2.5-inch hard drive, remove the four screws that secure the drive to the drive cage (1) to release the drive (2). 11. Install the new drive in the drive cage. ● If you are installing a 3.5-inch hard drive, slide the drive into the drive cage (1) and secure the drive with four 6-32 standard screws. NOTE: The four screw holes for the 3.5-inch hard drive are stamped “A” on the top of the drive cage.
● If you are installing a 2.5-inch hard drive, slide the drive into the drive cage (1) and secure the drive with four M3 metric screws. NOTE: The four screw holes for the 2.5-inch hard drive are stamped “B” on the top of the drive cage.
12. Hold the drive cage at an angle and insert the tabs on the side of the drive cage into the slots on the chassis (1), and then lower the other side of the drive cage down so that the latch snaps onto the chassis (2). 13. Connect the power cable (1) and data cable (2) to the rear of the hard drive.
14. Slide the optical drive through the front bezel all the way into the bay (1) so that it locks in place (2). 15. Connect the power cable (1) and data cable (2) to the rear of the drive. 16. Replace the access panel. 17. Reconnect the power cord and any external devices, then turn on the computer. 18. Lock any security devices that were disengaged when the access panel was removed.
Installing a security lock The security locks displayed below and on the following pages can be used to secure the computer.
HP Business PC Security Lock V2 1. Loop the security cable around a stationary object. 2. Attach the security cable fastener to a desktop using the appropriate screws for your environment (screws not provided) (1), and then snap the cover onto the base of the cable fastener (2). NOTE: This step is not necessary if you looped the security cable around a stationary object as shown in step 1.
3. Slide the security cable through the security cable fastener. NOTE: This step is not necessary if you looped the security cable around a stationary object as shown in step 1. 4.
5. Slide the security cable through the security guide installed on the monitor. 6. Attach the accessory cable fastener to a desktop using the appropriate screw for your environment (screw not provided) (1), and then place the accessory cables into the base of the fastener (2).
36 7. Slide the security cable through the holes in the accessory cable fastener. 8. Screw the lock to the chassis using the screw provided.
9. Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the lock. Use the key provided to disengage the lock. 10. When you have completed all steps, all of the devices at your workstation will be secured.
A Battery replacement The battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed in the computer. The computer comes with a 3-volt lithium coin cell battery. 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.
b. Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. 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 holder’s lip with the positive side up.
b. Insert the new battery and position the clip back into place. NOTE: After the battery has been replaced, use the following steps to complete this procedure. 9. Replace the computer access panel. 10. Reconnect the power cord and any external devices, then turn on the computer. 11. Reset the date and time, your passwords, and any special system setups using Computer Setup. 12. Lock any security devices that were disengaged when the computer access panel was removed.
B Electrostatic discharge A discharge of static electricity from a finger or other conductor may damage system boards or other staticsensitive devices. This type of damage may reduce the life expectancy of the device. Preventing electrostatic damage To prevent electrostatic damage, observe the following precautions: ● Avoid hand contact by transporting and storing products in static-safe containers. ● Keep electrostatic-sensitive parts in their containers until they arrive at static-free workstations.
C Computer operating guidelines, routine care and shipping preparation Computer operating guidelines and routine care Follow these guidelines to properly set up and care for the computer and monitor: 42 ● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold. ● Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow.
Optical drive precautions Be sure to observe the following guidelines while operating or cleaning the optical drive. Operation ● Do not move the drive during operation. This may cause it to malfunction during reading. ● Avoid exposing the drive to sudden changes in temperature, as condensation may form inside the unit. If the temperature suddenly changes while the drive is on, wait at least one hour before you turn off the power. If you operate the unit immediately, it may malfunction while reading.
D Accessibility HP designs, produces, and markets products and services that can be used by everyone, including people with disabilities, either on a stand-alone basis or with appropriate assistive devices. Supported assistive technologies HP products support a wide variety of operating system assistive technologies and can be configured to work with additional assistive technologies. Use the Search feature on your device to locate more information about assistive features.
Index A access panel removal 5 replacement 6 accessibility 44 B battery replacement hard drive 26 memory 11 optical drive 24 L locks cable lock 32 HP Business PC Security Lock 33 padlock 32 38 C computer operating guidelines 42 D DIMMs.
