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Dell OptiPlex 7080 Tower Service Manual - Page 18

Disassembly and reassembly, Side cover, Removing the side cover

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4 Disassembly and reassembly Topics: • Side cover • Front bezel • Hard-drive assembly • 3.5 in. hard-drive assembly • Solid-state drive • Memory modules • SD card reader (optional) • Processor fan and heat-sink assembly • Processor • Graphics card • Graphical processing unit • Coin-cell battery • WLAN card • Slim optical-drive • Slim optical-drive bracket • Chassis fan • VR heat sink • Speaker • Power button • Power-supply unit • Intrusion switch • Optional I/O modules (Type C/ HDMI/VGA/DP/Serial) • System board Side cover Removing the side cover Prerequisites 1. Follow the procedure in before working inside your computer. NOTE: Ensure that you remove the security cable from the security-cable slot (if applicable). About this task The following images indicate the location of the side cover and provide a visual representation of the removal procedure. 18 Disassembly and reassembly

Section	Page
OptiPlex 7080 Tower Service Manual	3
Working on your computer	6
Safety instructions	6
Before working inside your computer	6
Safety precautions	7
Electrostatic discharge—ESD protection	7
ESD field service kit	8
After working inside your computer	8
Technology and components	10
Graphics options	10
Intel UHD 630 Graphics	10
NVIDIA GeForce GT 730	10
AMD Radeon RX 640	11
AMD Radeon R5 430	12
NVIDIA GeForce RTX 1660 SUPER	13
NVIDIA GeForce RTX 2070 SUPER	13
System management features	14
Dell Client Command Suite for In-Band systems management	14
Major components of your system	16
Disassembly and reassembly	18
Side cover	18
Removing the side cover	18
Installing the side cover	20
Front bezel	21
Removing the front bezel	21
Installing the front bezel	22
Hard-drive assembly	23
Removing the primary 2.5-inch hard-disk drive assembly	23
Removing the secondary 2.5-inch hard-disk drive assembly	24
Removing the 2.5-inch hard-disk drive bracket	25
Installing the 2.5-inch hard-disk drive bracket	26
Installing the secondary 2.5-inch hard-disk drive assembly	26
Installing the primary 2.5-inch hard-disk drive assembly	27
3.5 in. hard-drive assembly	29
Removing the 3.5-inch hard-disk drive assembly	29
Removing the 3.5-inch hard-disk drive bracket	30
Installing the 3.5-inch hard-disk drive bracket	30
Installing the 3.5-inch hard-disk drive assembly	31
Solid-state drive	33
Removing the M.2 2230 PCIe solid-state drive	33
Installing the M.2 2230 PCIe solid-state drive	33
Removing the M.2 2280 PCIe solid-state drive	34
Installing the M.2 2280 PCIe solid-state drive	36
Memory modules	37
Removing the memory modules	37
Installing the memory modules	38
SD card reader (optional)	38
Removing the SD card reader	38
Installing the SD card reader	39
Processor fan and heat-sink assembly	40
Removing the processor fan and 125 W heat-sink assembly	40
Removing the processor fan	41
Installing the processor fan	42
Installing the processor fan and 125 W heat-sink assembly	43
Removing the processor fan and 65 W heat-sink assembly	44
Installing the processor fan and 65 W heat-sink assembly	45
Processor	46
Removing the processor	46
Installing the processor	47
Graphics card	48
Removing the graphics card	48
Installing the graphics card	49
Graphical processing unit	50
Removing the powered GPU	50
Installing the powered GPU	52
Coin-cell battery	53
Removing the coin-cell battery	53
Installing the coin-cell battery	54
WLAN card	55
Removing the WLAN card	55
Installing the WLAN card	56
Slim optical-drive	58
Removing the Slim-Optical Disk Drive	58
Installing the Slim-Optical Disk Drive	59
Slim optical-drive bracket	60
Removing the slim-ODD bracket	60
Installing the slim-ODD bracket	60
Chassis fan	61
Removing the chassis fan	61
Installing the chassis fan	62
VR heat sink	63
Removing the VR heat sink	63
Installing the VR heat sink	64
Speaker	65
Removing the speaker	65
Installing the speaker	66
Power button	67
Removing the power button	67
Installing the power button	68
Power-supply unit	69
Removing the power-supply unit	69
Installing the power-supply unit	71
Removing the power-supply unit (For systems with powered GPU)	73
Installing the power-supply unit (For systems with powered GPU)	76
Intrusion switch	79
Removing the intrusion switch	79
Installing the intrusion switch	80
Optional I/O modules (Type C/ HDMI/VGA/DP/Serial)	80
Removing optional I/O modules (Type C/ HDMI/VGA/DP/Serial)	80
Installing optional I/O modules (Type-C/HDMI/VGA/DP/Serial)	81
System board	86
Removing the system board	86
Installing the system board	89
Troubleshooting	94
Dell SupportAssist Pre-boot System Performance Check diagnostics	94
Running the SupportAssist Pre-Boot System Performance Check	94
Diagnostic LED behavior	95
Diagnostic error messages	96
System error messages	99
WiFi power cycle	99
Getting help	100