Dell 9020 Owner's Manual download pdf (Page 15)

3. Locate the coin-cell battery on the system board.

4. Press the release latch away from the battery to allow the battery to pop-up from the socket and lift

the coin-cell battery out of the computer.

Installing the Coin-Cell Battery

1. Place the coin cell battery in its slot on the system board and press until the release latch springs

back into place and secures it.

2. Install:

a. expansion card

b. cover

3. Follow the procedures in After Working Inside Your Computer.

Removing the Hard Drive

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the cover.

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Dell OptiPlex 9020 Mini Tower 1
Owner's Manual 1
Notes, Cautions, and Warnings 2
Contents 3
Working on Your Computer 5
Turning Off Your Computer 6
Recommended Tools 9
Removing the Cover 9
Installing the Cover 9
Removing the Intrusion Switch 10
Removing the Front Bezel 12
Installing the Front Bezel 12
Removing the Expansion Card 12
Installing the Expansion Card 13
Memory Module Guidelines 13
Installing the Memory 14
Removing the Memory 14
Removing the Hard Drive 15
Installing the Hard Drive 16
Removing the Optical Drive 16
Installing the Optical Drive 17
Removing the Speaker 18
Installing the Speaker 18
Removing the Power Supply 18
Installing the Power Supply 20
Removing the Processor 20
Installing the Processor 21
Removing the System Fan 21
Installing the System Fan 22
Removing the Thermal Sensor 22
Installing the Thermal Sensor 24
Removing the Power Switch 24
Installing the Power Switch 25
Removing the System Board 27
Installing the System Board 28
System Board Components 29
System Setup 31
System Setup Options 32
Table 3. System Configuration 33
Table 4. Security 34
Table 5. Secure Boot 36
Table 6. Performance 37
Table 7. Power Management 37
Table 8. POST Behavior 39
Table 10. Maintenance 39
Table 11. Cloud Desktop 40
Updating the BIOS 41
Jumper Settings 41
System and Setup Password 42
Disabling a System Password 43
Diagnostics 45
Troubleshooting Your Computer 47
Beep Code 48
Error Messages 48
Specifications 53
Table 19. Network 54
Table 20. System Information 54
Table 21. Expansion Bus 54
Table 22. Cards 54
Table 23. Drives 55
Table 24. External Connectors 55
Table 25. Internal Connectors 56
Table 26. Controls and Lights 57
Table 27. Power 58
Table 28. Physical Dimension 58
Table 29. Environmental 58
Contacting Dell 61

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Dell 9020 Owner's Manual Page 15

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