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Dell OptiPlex 5055 Ryzen Small Form Factor OptiPlex 5055 Small Form Factor Own - Page 4

Specifications, Diagnostic and Power LED codes, Enhanced Pre-Boot System Assessment - ePSA diagnostics

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Specifications...60 Chapter 6: Troubleshooting...65 Diagnostic and Power LED codes...65 Enhanced Pre-Boot System Assessment - ePSA diagnostics 69 Chapter 7: Getting help...71 Contacting Dell...71 4 Contents

Section	Page
Dell OptiPlex 5055 Small Form Factor Owner's Manual	2
Working on your computer	6
Safety instructions	6
Turning off your computer	6
Turning off your — Windows	6
Before working inside your computer	7
After working inside your computer	7
Chassis	8
Front chassis view	8
Back chassis view	9
Disassembly and reassembly	10
Back cover	10
Removing cover	10
Installing cover	12
Front Bezel	12
Removing the front bezel	12
Installing front bezel	13
Storage device	13
Removing 2.5–inch hard drive assembly	13
Removing 2.5–inch hard drive from the hard drive bracket	15
Installing 2.5–inch hard drive into the hard drive bracket	16
Installing 2.5–inch hard drive assembly	16
Expansion card	16
Removing PCIe expansion card	16
Installing PCIe expansion card	18
Cooling shroud	18
Removing the cooling shroud	18
Installing cooling shroud	20
Coin-cell battery	20
Removing coin cell battery	20
Installing coin cell battery	21
Optical drive	21
Removing optical drive	21
Installing optical drive	23
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	26
Removing the processor	26
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	29
VGA Daughterboard	29
Removing the VGA daughter board	29
Installing the VGA daughter board	29
SD card	30
Removing SD card reader	30
Installing SD card reader	30
Power supply unit	31
Removing power supply unit — PSU	31
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
Technology and components	42
Systems management features	42
In-Band Systems Management – Dell Client Command Suite	42
Out-of-Band Systems Management – DASH	43
AMD APUs, AMD Ryzen CPUs and APUs	43
AMD Advanced Processing Unit - APU	43
AMD Ryzen	43
AMD Ryzen APUs	44
AMD PT B350	44
AMD Radeon R7 M450	44
AMD Radeon R5 M430	45
USB features	45
DDR4	47
Active State Power Management	48
System setup	49
Boot menu	49
System Setup options	49
Updating the BIOS in Windows	55
Updating BIOS on systems with BitLocker enabled	56
Updating your system BIOS using a USB flash drive	56
Updating the Dell BIOS in Linux and Ubuntu environments	56
Flashing the BIOS from the F12 One-Time boot menu	57
Specifications	60
Troubleshooting	65
Diagnostic and Power LED codes	65
Enhanced Pre-Boot System Assessment — ePSA diagnostics	69
Getting help	71

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Specifications

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Chapter 6: Troubleshooting

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Diagnostic and Power LED codes

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Enhanced Pre-Boot System Assessment — ePSA diagnostics

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Chapter 7: Getting help

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Contacting Dell

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Contents