Dell OptiPlex 5055 User Manual

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. Other

trademarks may be trademarks of their respective owners.

2018 - 02

Rev. A00

Contents

1 Working on your computer............................................................................................................................. 6

Safety instructions.............................................................................................................................................................6

Turning o your computer................................................................................................................................................ 6

Turning o your — Windows..................................................................................................................................... 6

Before working inside your computer..............................................................................................................................7

After working inside your computer.................................................................................................................................7

2 Chassis.......................................................................................................................................................... 8

Front chassis view..............................................................................................................................................................8

Back chassis view ............................................................................................................................................................. 9

3 Disassembly and reassembly........................................................................................................................ 10

Back cover.........................................................................................................................................................................10

Removing cover..........................................................................................................................................................10

Installing cover............................................................................................................................................................. 11

Front Bezel......................................................................................................................................................................... 11

Removing the front bezel...........................................................................................................................................11

Installing front bezel....................................................................................................................................................12

Storage device.................................................................................................................................................................. 12

Removing 2.5–inch hard drive assembly................................................................................................................. 12

Removing 2.5–inch hard drive from the hard drive bracket................................................................................. 14

Installing 2.5–inch hard drive into the hard drive bracket..................................................................................... 15

Installing 2.5–inch hard drive assembly................................................................................................................... 15

Expansion card..................................................................................................................................................................15

Removing PCIe expansion card................................................................................................................................ 15

Installing PCIe expansion card...................................................................................................................................17

Cooling shroud...................................................................................................................................................................17

Removing the cooling shroud....................................................................................................................................17

Installing cooling shroud.............................................................................................................................................19

Coin-cell battery............................................................................................................................................................... 19

Removing coin cell battery........................................................................................................................................ 19

Installing coin cell battery..........................................................................................................................................20

Optical drive......................................................................................................................................................................20

Removing optical drive..............................................................................................................................................20

Installing optical drive................................................................................................................................................ 22

M.2 PCIe SSD...................................................................................................................................................................23

Removing M.2 PCIe SSD.......................................................................................................................................... 23

Installing M.2 PCIe SSD.............................................................................................................................................24

Heat sink assembly.......................................................................................................................................................... 24

Removing heat sink assembly...................................................................................................................................24

Installing heat sink assembly.....................................................................................................................................25

Processor..........................................................................................................................................................................25

Removing the processor...........................................................................................................................................25

Contents

3

Installing the processor............................................................................................................................................. 26

Intrusion switch................................................................................................................................................................ 27

Removing intrusion switch........................................................................................................................................27

Installing intrusion switch..........................................................................................................................................28

Memory modules............................................................................................................................................................. 28

Removing memory module....................................................................................................................................... 28

Installing memory module..........................................................................................................................................28

VGA Daughterboard........................................................................................................................................................ 29

Removing the VGA daughter board........................................................................................................................ 29

Installing the VGA daughter board...........................................................................................................................29

SD card..............................................................................................................................................................................29

Removing SD card reader.........................................................................................................................................29

Installing SD card reader........................................................................................................................................... 30

Power supply unit............................................................................................................................................................ 30

Removing power supply unit — PSU......................................................................................................................30

Installing power supply unit — PSU........................................................................................................................33

Power switch....................................................................................................................................................................33

Removing power switch............................................................................................................................................33

Installing power switch..............................................................................................................................................34

Speaker............................................................................................................................................................................. 35

Removing speaker..................................................................................................................................................... 35

Installing speaker........................................................................................................................................................35

System board....................................................................................................................................................................36

Removing the system board.....................................................................................................................................36

Installing the system board....................................................................................................................................... 40

System board layout...................................................................................................................................................41

4 Technology and components........................................................................................................................43

Systems management features......................................................................................................................................43

In-Band Systems Management – Dell Client Command Suite...................................................................................43

Out-of-Band Systems Management – DASH.............................................................................................................. 44

AMD APUs, AMD Ryzen CPUs and APUs....................................................................................................................44

AMD Advanced Processing Unit - APU..................................................................................................................44

AMD Ryzen.................................................................................................................................................................44

AMD Ryzen APUs......................................................................................................................................................45

AMD PT B350..................................................................................................................................................................45

AMD B350.................................................................................................................................................................. 45

Specication...............................................................................................................................................................45

AMD Radeon R7 M450...................................................................................................................................................45

Key Specications......................................................................................................................................................45

AMD Radeon R5 M430...................................................................................................................................................46

Key Specications......................................................................................................................................................46

USB features.................................................................................................................................................................... 46

USB 3.1 Gen 1 (SuperSpeed USB)........................................................................................................................... 47

Speed...........................................................................................................................................................................47

Applications.................................................................................................................................................................48

Compatibility...............................................................................................................................................................48

Contents

4

DDR4................................................................................................................................................................................. 49

DDR4 Details...............................................................................................................................................................49

Memory Errors........................................................................................................................................................... 50

Active State Power Management................................................................................................................................. 50

5 System setup............................................................................................................................................... 51

Boot menu......................................................................................................................................................................... 51

System Setup options......................................................................................................................................................51

Updating the BIOS in Windows .....................................................................................................................................57

Updating BIOS on systems with BitLocker enabled..............................................................................................58

Updating your system BIOS using a USB ash drive............................................................................................58

Updating the Dell BIOS in Linux and Ubuntu environments.......................................................................................58

Flashing the BIOS from the F12 One-Time boot menu............................................................................................... 59

Specications................................................................................................................................................................... 62

6 Troubleshooting........................................................................................................................................... 67

Diagnostic and Power LED codes..................................................................................................................................67

Enhanced Pre-Boot System Assessment — ePSA diagnostics.................................................................................71

7 Getting help................................................................................................................................................. 72

Contacting Dell................................................................................................................................................................. 72

Contents

5

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.

WARNING: Disconnect all power sources before opening the computer cover or panels. After you nish working inside the

computer, replace all covers, panels, and screws before connecting to the power source.

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional

safety best practices information, see the Regulatory Compliance Homepage at www.Dell.com/regulatory_compliance

CAUTION: Many repairs may only be done by a certied service technician. You should only perform troubleshooting and simple

repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an

unpainted metal surface at the same time as touching a connector on the back of the computer.

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its

edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have

connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the
cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a
cable, ensure that both connectors are correctly oriented and aligned.

NOTE: The color of your computer and certain components may appear dierently than shown in this document.

1

Turning o your computer

Turning o your — Windows

CAUTION

1 Click or tap .

2 Click or tap and then click or tap Shut down.

6 Working on your computer

: To avoid losing data, save and close all open les and exit all open programs before you turn o your computer .

: Ensure that the computer and all attached devices are turned o. If your computer and attached devices did not

NOTE

automatically turn o when you shut down your operating system, press and hold the power button for about 6 seconds to
turn them o.

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 at and clean to prevent the computer cover from being scratched.

3 Turn o your computer.

4 Disconnect all network cables from the computer.

CAUTION: To disconnect a network cable, rst unplug the cable from your computer and then unplug the cable from the

network device.

5 Disconnect your computer and all attached devices from their electrical outlets.

6 Press and hold the power button while the computer is unplugged to ground the system board.

NOTE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an

unpainted metal surface at the same time as touching a connector on the back of the computer.

After working inside your computer

After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on your
computer.

1 Connect any telephone or network cables to your computer.

CAUTION

computer.

2 Connect your computer and all attached devices to their electrical outlets.

3 Turn on your computer.

4 If required, verify that the computer works correctly by running ePSA diagnostics.

: To connect a network cable, rst plug the cable into the network device and then plug it into the

Working on your computer

7

Front chassis view

2

Chassis

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 3.1 Gen1 port

8 Chassis

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 2.0 ports (supports Smart Power On)

7 Expansion card slots 8 Power connector port

9 Power supply diagnostic light 10 Padlock ring

11 Kensington security cable slot 12 Network port

13 PS/2 mouse port 14 VGA connector port (optional)

15 Release latch 16 Cable cover lock slot

Chassis 9

Disassembly and reassembly

Back cover

Removing cover

1 Follow the procedure in Before working inside your computer.

2 To release cover:

a Slide the blue retention tab to the right to unlock the cover [1].
b Slide the cover toward the back of the computer [2].

3

3 Lift the cover to remove it from the computer.

10 Disassembly and reassembly

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 Lift the tabs to release the bezel from the chassis [1].
b Remove the front bezel from the computer [2].

: Please ensure that the tabs at the bottom of the bezel is also released before lifting the bezel.

NOTE

Disassembly and reassembly 11

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 Disconnect the SATA cable and power cable from the drive [1].
b Push the tab to release drive assembly from the chassis [2].

12

Disassembly and reassembly

4 Slide and lift the hard drive assembly from the computer.

Disassembly and reassembly

13

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 cover
b 2.5 inch hard drive assembly

3 To remove hard drive bracket:

a Pull one side of the hard drive bracket to disengage the pins on the bracket from the slots on the hard drive [1].
b Lift the drive out of the 2.5-inch drive bracket [2].

14

Disassembly and reassembly

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 2.5 inch hard drive assembly
b cover

4 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.

2 Connect the SATA cable and the power cable to the connectors on the hard drive.

3 Install the cover.

4 Follow the procedure in After working inside your computer.

Expansion card

Removing PCIe expansion card

1 Follow the procedure in Before working inside your computer.

2 Remove the:

a cover
b front bezel

3 Pull the metal tab to open the expansion card latch.

Disassembly and reassembly

15

4 To remove the PCIe expansion card:

a Pull the release latch to unlock the PCIe expansion card [1].
b 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.

16 Disassembly and reassembly

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 front bezel
b cover

5 Follow the procedure in After working inside your computer.

Cooling shroud

Removing the cooling shroud

NOTE

: Cooling shroud is encompasses the processor assembly and it must be removed to access the processor.

1 Follow the procedure in Before working inside your computer.

2 Remove the cover.

3 To remove cooling shroud:

a Holding the touch points, pull the fan duct bracker outwards to release the cooling shroud.

Disassembly and reassembly

17

NOTE: Illustration on how to remove the shroud is also given on the shroud.

b Lift the cooling shroud away from the chassis.

18

Disassembly and reassembly

Installing cooling shroud

: When inserting the shroud on the processor assembly, please ensure that the data and power cables of the optical drive

NOTE

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.

Coin-cell battery

Removing coin cell battery

1 Follow the procedure in Before working inside your computer.

2 Remove the:

a cover
b cooling shroud
c expansion card

3 To remove the coin cell battery:

a Using a plastic scribe press the release latch until the coin cell battery pops out [1].

Disassembly and reassembly

19

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 expansion card
b cooling shroud
c cover

4 Follow the procedure in After working inside your computer.

Optical drive

Removing optical drive

1 Follow the procedure in Before working inside your computer.

2 Remove the:

a cover
b front bezel
c cooling shroud

Disassembly and reassembly

20

d 2.5 inch hard drive assembly

3 To remove optical drive:

a Release the cables from the retention clip [1].
b Slide the blue tab to unlock the optical drive assembly [2].

4 To remove the optical drive assembly:

a Pull the tab upward to release the assembly [1].
b Holding the tab, disconnect the optical drive cables [2].
c Slide and lift the optical drive assembly away from the computer [3].

Disassembly and reassembly

21

NOTE: After releasing the Optical drive, you can also ip 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 Slide the tab to release the optical drive [1].
b 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.

3 Lower the optical drive assembly into the computer.

4 Lock the latch to secure the optical drive to the computer.

5 Connect the data and the power cables to the optical drive.

6 Install the:

a 2.5 inch hard drive assembly

Disassembly and reassembly

22