Dell 7020 SFF Owner's Manual download pdf (Page 24)

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4. Disconnect the 4–pin power cables from the system board.

5. Remove the screws that secure the power supply to the back of the computer.

6. Push in on the blue release tab and slide the power supply towards the front of the computer.

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Owner's Manual 1
Notes, Cautions, and Warnings 2
Contents 3
Working on Your Computer 5
Turning Off Your Computer 6
Recommended Tools 8
System Overview 8
Figure 2. Inside View 9
Removing the Cover 10
Installing the Cover 11
Removing the Front Bezel 11
Installing the Front Bezel 11
Removing The Expansion Card 11
Installing The Expansion Card 13
Installing the WLAN Card 14
Removing the Optical Drive 14
Installing the Optical Drive 15
Removing the Drive Cage 15
Installing the Drive Cage 16
Removing the Hard Drive 17
Installing the Hard Drive 17
Removing the Speaker 18
Installing the Speaker 18
Memory Module Guidelines 19
Removing the Memory 19
Installing the Memory 19
Removing the System Fan 19
Installing the System Fan 20
Removing the Power Switch 21
Installing the Power Switch 22
Removing the Power Supply 23
Installing the Power Supply 25
Removing the Processor 28
Installing the Processor 28
Removing the Intrusion Switch 28
Removing the System Board 29
Installing the System Board 30
System Board Layout 31
17. PCI Express x16 connector 32
18. PCI Express x4 connector 32
System Setup 33
System Setup Options 34
Table 3. System Configuration 35
Table 4. Security 36
Table 5. Secure Boot 37
Table 6. Performance 38
Table 7. Power Management 39
Table 8. POST Behavior 40
Table 10. Maintenance 41
Table 11. Cloud Desktop 41
Updating the BIOS 42
Jumper Settings 43
System and Setup Password 43
Disabling a System Password 45
Diagnostics 46
Troubleshooting Your Computer 47
Beep Code 48
Error Messages 48
Specifications 52
Table 19. Network 53
Table 20. System Information 53
Table 21. Expansion Bus 53
Table 22. Cards 53
Table 23. Drives 53
Table 24. External Connectors 54
Table 25. Internal Connectors 54
Table 26. Controls and Lights 56
Table 27. Power 57
Table 28. Physical Dimension 57
Table 29. Environmental 57
Contacting Dell 58

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Dell 7020 SFF Owner's Manual Page 24

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