Dell OptiPlex 5055 Small Form Factor Owner's Manual Regulatory Model: D11S Regulatory Type: D11S003
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2018 2018 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents 1 Working on your computer............................................................................................................................. 6 Safety instructions............................................................................................................................................................. 6 Turning off your computer................................................................................................................................................
Installing the processor............................................................................................................................................. 26 Intrusion switch................................................................................................................................................................ 27 Removing intrusion switch........................................................................................................................................
DDR4................................................................................................................................................................................. 49 DDR4 Details...............................................................................................................................................................49 Memory Errors............................................................................................................................................
1 Working on your computer Safety instructions Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist: • You have read the safety information that shipped with your computer. • A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
Before working inside your computer To avoid damaging your computer, perform the following steps before you begin working inside the computer. 1 Ensure that you follow the Safety Instruction. 2 Ensure that your work surface is flat and clean to prevent the computer cover from being scratched. 3 Turn off your computer. 4 Disconnect all network cables from the computer. CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.
2 Chassis Front chassis view 1 Power button and power light 2 Hard drive activity light 3 Memory card reader (optional) 4 Optical drive (optional) 5 Headset port 6 USB 2.0 port with PowerShare 7 USB 2.0 port 8 USB 3.
Back chassis view 1 Line-out port 2 DisplayPort 3 Serial port 4 PS/2 keyboard port 5 USB 3.1 Gen1 port 6 USB 2.
3 Disassembly and reassembly Back cover Removing cover 1 Follow the procedure in Before working inside your computer. 2 To release cover: a b 3 Slide the blue retention tab to the right to unlock the cover [1]. Slide the cover toward the back of the computer [2]. Lift the cover to remove it from the computer.
Installing cover 1 Place the cover on the computer and slide the cover forward until it clicks into place. 2 Follow the procedure in After working inside your computer. Front Bezel Removing the front bezel 1 Follow the procedure in Before working inside your computer. 2 Remove the cover. 3 To remove front bezel: a b Lift the tabs to release the bezel from the chassis [1]. Remove the front bezel from the computer [2].
Installing front bezel 1 Insert the tabs of the bezel into the slots on the chassis. 2 Press the bezel until the tabs click into place. 3 Install the cover. 4 Follow the procedure in After working inside your computer. Storage device Removing 2.5–inch hard drive assembly 1 Follow the procedure in Before working inside your computer. 2 Remove the cover. 3 To remove the 2.5-inch drive assembly: a b 12 Disconnect the SATA cable and power cable from the drive [1].
4 Slide and lift the hard drive assembly from the computer.
Removing 2.5–inch hard drive from the hard drive bracket 1 Follow the procedure in Before working inside your computer. 2 Remove the: a b 3 cover 2.5 inch hard drive assembly To remove hard drive bracket: a b 14 Pull one side of the hard drive bracket to disengage the pins on the bracket from the slots on the hard drive [1]. Lift the drive out of the 2.5-inch drive bracket [2].
Installing 2.5–inch hard drive into the hard drive bracket 1 Flex the side of the hard drive bracket, to align and insert the pins on the bracket into the hard drive. 2 Insert the hard drive into the hard drive bracket until it clicks into place. 3 Install the: a b 4 2.5 inch hard drive assembly cover Follow the procedure in After working inside your computer. Installing 2.5–inch hard drive assembly 1 Insert the drive assembly into the slot on the computer until it clicks into place.
4 To remove the PCIe expansion card: a b Pull the release latch to unlock the PCIe expansion card [1]. Push the release tab [2] and lift the PCIe expansion card out of the computer [3]. NOTE: The release tab is at the base of the expansion card.
5 Repeat the steps to remove any additional PCIe expansion cards. Installing PCIe expansion card 1 Insert the expansion card into the connector on the system board. 2 Press the expansion card until it clicks into place. 3 Close the expansion card latch and press it until it clicks into place. 4 Install the: a b 5 front bezel cover Follow the procedure in After working inside your computer.
b 18 NOTE: Illustration on how to remove the shroud is also given on the shroud. Lift the cooling shroud away from the chassis.
Installing cooling shroud NOTE: When inserting the shroud on the processor assembly, please ensure that the data and power cables of the optical drive do not get caught inside the shroud. 1 Align the slots on the cooling shroud, with the screws on the heat sink. 2 Insert the cooling shroud over the processor assembly. 3 Install the cover. 4 Follow the procedure in After working inside your computer.
b Remove the coin cell battery from the connector on the system board [2]. Installing coin cell battery 1 Hold the coin cell battery with the "+" sign facing up and slide it under the securing tabs at the positive side of the connector. 2 Press the battery into the connector until it locks into place. 3 Install the: a b c 4 expansion card cooling shroud cover Follow the procedure in After working inside your computer.
d 3 To remove optical drive: a b 4 2.5 inch hard drive assembly Release the cables from the retention clip [1]. Slide the blue tab to unlock the optical drive assembly [2]. To remove the optical drive assembly: a b c Pull the tab upward to release the assembly [1]. Holding the tab, disconnect the optical drive cables [2]. Slide and lift the optical drive assembly away from the computer [3].
NOTE: After releasing the Optical drive, you can also flip the drive assembly for easy access to the drive cables. NOTE: The Optical drive cables are available on side of the drive assembly. 5 To remove the optical drive: a b Slide the tab to release the optical drive [1]. Push the optical drive away from the assembly [2][3]. Installing optical drive 1 Slide the optical drive into the optical drive assembly. 2 Align the tabs on the optical assembly with the slots on the computer.
b c d 7 cooling shroud front bezel cover Follow the procedure in After working inside your computer. M.2 PCIe SSD Removing M.2 PCIe SSD 1 Follow the procedure in Before working inside your computer. 2 Remove the: a b c d e 3 cover front bezel 2.5 inch hard drive assembly cooling shroud optical drive To remove the M.2 PCIe SSD: a b Pull the blue plastic pin that secures the M.2 PCIe SSD to the system board [1]. Disconnect the M.2 PCIe SSD from the connector on the system board [2].
Installing M.2 PCIe SSD 1 Insert the M.2 PCIe SSD to the connector 2 Press the blue plastic tab to secure the M.2 PCIe SSD. 3 Install the: a b c d e 4 optical drive cooling shroud 2.5 inch hard drive assembly front bezel cover Follow the procedure in After working inside your computer. Heat sink assembly Removing heat sink assembly 1 Follow the procedure in Before working inside your computer. 2 Remove the: a b c d e 3 cover front bezel 2.
Installing heat sink assembly 1 Align the screws of the heat sink assembly with the holders on the system board. 2 Place the heat sink assembly on the processor. 3 Replace the 6 captive screws to secure the heat sink assembly to the system board. 4 Connect the heat sink assembly cable to the connector on the system board. 5 Install the: NOTE: Tighten the screws based on the order given in the system board. a b c d e 6 optical drive cooling shroud 2.
a b c d e f 3 cover front bezel 2.5 hard drive assembly cooling shroud optical drive heat sink assembly To remove the processor: a b c Release the socket lever by pushing the lever down and out from under the tab on the processor shield [1]. Lift the lever upward and lift the processor shield [2]. Lift the processor out of the socket [3]. CAUTION: Do not touch the processor socket pins, they are fragile and can be permanently damaged.
6 Install the: a b c d e f 7 heat sink assembly optical drive cooling shroud 2.5 hard drive assembly front bezel cover Follow the procedure in After working inside your computer. Intrusion switch Removing intrusion switch 1 Follow the procedure in Before working inside your computer. 2 Remove the: a b c 3 cover front bezel cooling shroud To the intrusion switch: a b Disconnect the intrusion switch cable from the connector on the system board [1].
Installing intrusion switch 1 Insert the intrusion switch into the slot on the computer. 2 Connect the intrusion switch cable to the connector on the system board. 3 Install the: a b c 4 cooling shroud front bezel cover Follow the procedure in After working inside your computer. Memory modules Removing memory module 1 Follow the procedure in Before working inside your computer. 2 Remove the: a b c d e 3 cover front bezel 2.
VGA Daughterboard Removing the VGA daughter board 1 Follow the procedure in Before Working Inside Your Computer. 2 Remove the: a b Back Cover Bezel 3 Open the Front Bezel Door 4 To remove the VGA daughter board: a b c d Remove the screws that secure the VGA connector to the computer [1]. Slide the VGA connector to release it from the computer [2]. Remove the screw that secures the VGA daughter board to the computer [3].
Installing SD card reader 1 Place the SD card in the slot on the system board. 2 Tighten the 6 screw to secure the SD card reader to the front panel door. 3 Install the: a b c d e f 4 M.2 PCIe SSD optical drive cooling shroud 2.5 inch hard drive assembly front bezel cover Follow the procedure in After working inside your computer. Power supply unit Removing power supply unit — PSU 1 Follow the procedure in Before working inside your computer.
c d e 3 To release the PSU: a b 4 2.5 inch hard drive assembly cooling shroud optical drive Disconnect the PSU cables from the connectors on the system board [1]. Unroute the PSU cables from the retention clips [2, 3]. To disconnect the cables: a b c Disconnect the power cable from the system board [1] [2]. Lift the cables away from the computer [3, 4]. Remove the 6 screws that secure the PSU to the computer [5].
5 To remove the PSU: a b 32 Press the blue release tab [1] Slide the PSU and lift it away from the computer [2].
Installing power supply unit — PSU 1 Insert the PSU into the slot. 2 Slide the PSU towards the back of the computer until it clicks into place. 3 Replace the screws( 6lbs) to secure the PSU to the computer. 4 Route the PSU cables through the retention clips. 5 Connect the PSU cables to the connectors on the system board. 6 Install the: a b c d e 7 optical drive cooling shroud 2.5 inch hard drive assembly front bezel cover Follow the procedure in After working inside your computer.
a b c d e 3 cover front bezel 2.5 inch hard drive assembly cooling shroud optical drive To release the power switch: a b Disconnect the power switch cable from the system board [1]. Press the power switch retention tabs and pull out from the computer [2, 3]. Installing power switch 1 Slide the power switch module into the slot on the chassis until it clicks into place. 2 Connect the power switch cable to the connector on the system board. 3 Install the: a b c d 34 optical drive cooling shroud 2.
e 4 cover Follow the procedure in After working inside your computer. Speaker Removing speaker 1 Follow the procedure in Before working inside your computer. 2 Remove the: a b c d e 3 cover front bezel 2.5 inch hard drive assembly cooling shroud optical drive To remove the speaker: a b Disconnect the speaker cable from the connector on the system board [1]. Press the release tabs [2], and slide the speaker module [3] out of the slot.
3 Install the: a b c d e 4 optical drive cooling shroud 2.5 inch hard drive assembly front bezel cover Follow the procedure in After working inside your computer. System board Removing the system board 1 Follow the procedure in Before working inside your computer. 2 Remove the: a b c d e f g h i j k 3 cover front bezel 2.5 inch hard drive assembly cooling shroud optical drive M.
4 Disconnect the following cables and screw from the system board: a b c d e PSU [1] hard drive and optical drive caddy stand off screw [2] PSU [3] power switch [4] intrusion switch [5] Disassembly and reassembly 37
5 To remove the I/O panel plate: a b 38 Remove the 6 screw that secures the I/O panel [1]. Slide and push toward the front from the computer [2].
6 To remove the system board: a b Remove the 12 screws that secure the system board to the computer Slide and lift the system board away from the computer [2].
Installing the system board 1 Hold the system board by its edges and align it toward the back of the computer. 2 Lower the system board into the chassis until the connectors at the back of the system board. 3 Align with the slots on the chassis, and the screw holes on the system board align with the standoffs on the computer. 4 Replace the screws (12 lbs) to secure the system board to the computer. 5 Route all the cables through the routing clips.
b c d e f g h i j k 8 memory module heat sink assembly SD card M.2 PCIe SSD processor cooling shroud optical drive 2.5 inch hard drive assembly front bezel cover Follow the procedure in After working inside your computer. System board layout This chapter explains about the motherboard's layout with name and location of its connectors.
13 SATA2 Connector Black Color (SATA2) 14 SATA0 Connector Blue Color (SATA0) 15 ATX Power Connector (ATX_SYS) 16 Front USB2.
4 Technology and components This chapter details the technology and components available in the system.
Dell Command | Update Catalog - Provides searchable metadata that is leveraged with Dell Command | Update and enables management consoles Dell KACE Appliances, LANDesk Management Systems and Microsoft System Center to retrieve the latest system specific updates (driver, firmware, or BIOS) for any Dell commercial client to be delivered seamlessly to end-users.
• Performance: Simultaneous multithreading (SMT) to allow execution of two threads per core, increasing the Instruction Per Cycle(IPC) thus enhancing the processing throughput. • Power: AMD's Sense MI technology employs sensors across the chip to dynamically scaling the frequency and voltage automatically defined in processor itself allowing better use of available resources.
Table 2. Key Specifications Specification AMD Radeon R7 M450 Product Line AMD API Supported DirectX 12 , OpenCL 1.2 , OpenGL 4.3 Clock Speed 925 MHz Bus Width 128-bit Memory Clock Speed 1.125 GHz Technology DDR3 SDRAM Max External Resolution 1920 x 1080 Interface Type PCI Express 3.0 x16 AMD Radeon R5 M430 The AMD Radeon R5 M430 is an entry level graphics card for laptops. It is based on the older Radeon R5 M330 / M335 or R7 M340.
Table 4. USB evolution Type Data Transfer Rate Category Introduction Year USB 3.0/USB 3.1 Gen 2 5 Gbps Super Speed 2010 USB 2.0 480 Mbps High Speed 2000 USB 3.1 Gen 1 (SuperSpeed USB) For years, the USB 2.0 has been firmly entrenched as the de facto interface standard in the PC world with about 6 billion devices sold, and yet the need for more speed grows by ever faster computing hardware and ever greater bandwidth demands. The USB 3.
With today's ever increasing demands placed on data transfers with high-definition video content, terabyte storage devices, high megapixel count digital cameras etc., USB 2.0 may not be fast enough. Furthermore, no USB 2.0 connection could ever come close to the 480Mbps theoretical maximum throughput, making data transfer at around 320Mbps (40MB/s) — the actual real-world maximum. Similarly, USB 3.1 Gen 1 connections will never achieve 4.8Gbps.
Microsoft announced that Windows 7 would have USB 3.1 Gen 1 support, perhaps not on its immediate release, but in a subsequent Service Pack or update. It is not out of the question to think that following a successful release of USB 3.1 Gen 1 support in Windows 7, SuperSpeed support would trickle down to Vista. Microsoft has confirmed this by stating that most of their partners share the opinion that Vista should also support USB 3.1 Gen 1. Super-Speed support for Windows XP is unknown at this point.
Figure 3. Curved edge Memory Errors Memory errors on the system display the new ON-FLASH-FLASH or ON-FLASH-ON failure code. If all memory fails, the LCD does not turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory connectors on the bottom of the system or under the keyboard, as in some portable systems. Active State Power Management This section describes about the Active State Power Management (ASPM).
5 System setup System setup enables you to manage your desktop hardware and specify BIOS level options.
Table 5. General Option Description System Information Displays the following information: • • • • • Boot Sequence • • • • Advanced Boot Options Enabled(selected by default) Disabled Allows you to select BIOS Setup Advanced Mode. By default, this option is selected. • • Date/Time Boot Mode Boot List option: – Legacy – UEFI (Default) Enable Boot Devices Boot Sequence – Add Boot Option – Remove Boot Option – View Boot Option Allows you to select the Enable Legacy Option ROMs option.
Option Description • SATA Operation Allows you to configure the operating mode of the integrated hard drive controller. • • • Drives COM4 (Disabled by default) Disabled = The SATA controllers are hidden AHCI (Enabled by default) RAID ON = SATA is configured to support RAID mode (Disabled by default) Allows you to enable or disable the various drives on-board: • • • • • SATA-0 (enabled by default) SATA-1 SATA-2 SATA-3 M.
Table 8. Security Option Description Admin Password Allows you to set, change, and delete the admin password. System Password Allows you to set, change, and delete the system password. Internal HDD-0 Password Allows you to set, change, and delete the computer’s internal HDD. Internal HDD-1 Password Allows you to set, change, and delete the computer’s internal HDD. Internal HDD-2 Password Allows you to set, change, and delete the computer’s internal HDD.
Option Description • • Expert key Management Disable (selected by default) Enable Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom Mode option is disabled by default. The options are: • • • • PK (default) KEK db dbx If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear.
Option Description Fan Control Override Allows you to determine the speed of the system fan. When this option is enabled, the system fan runs at the maximum speed. This option is disabled by default. USB Wake Support Allows you to enable the USB devices to wake the computer from standby mode. The option "Enable USB Wake Support" is selected by default Wake on LAN/WWAN This option allows the computer to power up from the off state when triggered by a special LAN signal.
Option Description SERR Messages Controls the SERR message mechanism. This option is set by default. Some graphics cards require that the SERR message mechanism be disabled. Dell Development Configuration This options is disabled by default. BIOS Downgrade Allows you to control flashing of the system firmware to the previous versions. This option is enabled by default. NOTE: If this option is not selected, the flashing of the system firmware to the previous versions is blocked.
Follow the instructions on the screen. Updating BIOS on systems with BitLocker enabled CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an unnecessary operating system re-install.
Flashing the BIOS from the F12 One-Time boot menu Updating your system BIOS using a BIOS update .exe file copied to a FAT32 USB key and booting from the F12 one time boot menu. BIOS Update You can run the BIOS update file from Windows using a bootable USB key or you can also update the BIOS from the F12 One-Time boot menu on the system.
4 The E5450A14.exe file is shown as an example in the following screenshot. The actual file name may vary. 5 Once the file is selected, it will show in the file selection box and you can click the OK button to continue.
6 Click the Begin Flash Update button. 7 A warning box is displayed asking you if you want to proceed. Click the Yes button to begin the flash.
8 At this point the BIOS flash will execute, the system will reboot and then the BIOS flash will start and a progress bar will show the progress of the flash. Depending on the changes included in the update, the progress bar may go from zero to 100 multiple times and the flash process could take as long as 10 minutes. Generally this process takes two to three minutes. 9 Once complete, the system will reboot and the BIOS update process is completed. Specifications NOTE: Offerings may vary by region.
Table 17. Chipset Feature Specification Chipset AMD PT B350 Chipset Table 18. Processor Feature Specification Processor type • • • • Total cache Up to 4MB AMD R7 PRO A12-9800 AMD R7 PRO A10-9700 AMD R7 PRO A8-9600 AMD R7 PRO A6-9500 Table 19. Memory Feature Specification Memory type DDR4 Memory speed Up to 2400 MHz Memory connectors Four DIMM slots Memory capacity Up to 64 GB Minimum memory 4 GB (2 GB for Linux based OS only) Maximum memory 64 GB Table 20.
Table 23. Expansion bus Feature Specification Bus type USB 2.0, USB 3.1 Gen1, SATA 3, and PCle up to Gen 3 Bus speed • • • • USB 2.0 – 480 Mbps USB 3.1 Gen1 – 5 Gbps SATA 3.0 – 6 Gbps PCIe – 8 Gbps Table 24. Cards Feature Specification WLAN card • • • Intel Wireless-AC 8265 2x2 Intel Wireless-AC 3165 1x1 Bluetooth 4.1 NOTE: For optimal performance, it is recommended to use the wireless display feature with an access point that supports 5 GHz standard. Table 25.
Feature Specification NOTE: Available video connectors may vary based on the optional graphic board selected. Table 27. Controls and lights Feature Specification Front of the computer Power button light White light — Solid white light indicates power-on state; slow blinking white light indicates sleep state of the computer. Drive activity light White light — Slow blinking white light indicates that the computer is reading data from or writing data to the hard drive.
Table 30. Environmental Feature Specification Temperature range Operating 5°C to 35°C (41°F to 95°F) Non-Operating –40°C to 65°C (–40°F to 149°F) Relative humidity (maximum) Operating 20% to 80% (non condensing) Non-Operating 5% to 95% (non condensing) Maximum vibration Operating 0.66 Grms Non-Operating 1.37 Grms Maximum shock Operating 40 G Non-Operating 105 G Altitude 66 Operating –15.2 m to 3048 m (–50 to 10,000 ft) Non-Operating –15.
6 Troubleshooting Diagnostic and Power LED codes Table 31. Power LED states Power LED light status Possible cause Troubleshooting steps Off The computer is either turned • off or is not receiving power or in Hibernation mode. • • Steady/blinking amber Computer fails to complete POST or processor failure. • • • Slow Blinking white light Computer is in sleep mode. • • • Steady white The computer is fully functional and in the On state.
NOTE: Amber LED blinking pattern : The pattern is 2 or 3 blinks followed by a short pause then X number of blinks up to 7. The repeated pattern has a long pause inserted in the middle. Example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed by long pause then repeats. Table 32.
State State Name Blinking Amber Pattern Problem Description Suggested Resolution If customer can assist to troubleshoot, narrow down the issue with reseating memory and swapping a known good memory if available. If nothing works, replace the memory. S4 PCI 3 blinks > short pause > 1 blinks > long pause > repeats PCIe Device or Video subsystem failures PCIe device configuration activity is in progress or PCIe device failure was detected.
State State Name Blinking Amber Pattern Problem Description Suggested Resolution If none of the memory failed, replace the motherboard. S7 USB 3 blinks > short pause > 4 blinks > long pause > repeats Storage Subsystem failure Possible storage device configuration in progress or storage subsystem failure. If customer can assist to troubleshoot, narrow down the issue by removing one by one storages on motherboard to determine which one failed. If identified the storage failed, replace the storage.
State State Name Blinking Amber Pattern Problem Description Suggested Resolution If identified any of the component failed, replace the component. If none of the component failed, replace the motherboard. S10 MEM 3 blinks > short pause > 7 blinks > long pause > repeats Possible memory failure Memory subsystem configuration activity is in progress. Memory modules have been detected but appear to be incompatible or in an invalid configuration.
7 Getting help Contacting Dell NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1 Go to Dell.com/support. 2 Select your support category.
