Dell 3020 Owner's Manual download pdf (Page 29)

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Removing the System Board

1. Follow the procedures in

Before Working Inside Your Computer

2. Remove the:

a) cover

b) memory

c) expansion card(s)

d) heatsink assembly

e) processor

3. Disconnect all the cables connected to the system board.

4. Perform the following steps as shown in the illustration:

a) Disconnect the 8–pin power cable.

b) Press the 4–pin power cable [1].

c) Disconnect the 4-pin power cables from the system board [2].

5. Remove the screws that secure the system board to the computer.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 58 59

Dell OptiPlex 3020–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
System Overview 9
Removing the Cover 10
Installing the Cover 11
Removing the Intrusion Switch 12
Removing the Front Bezel 12
Installing the Front Bezel 13
Removing The Expansion Card 13
Installing the Expansion Card 14
Memory Module Guidelines 15
Removing the Memory 15
Installing the Memory 15
Removing the Hard Drive 16
Installing the Hard Drive 17
Removing the Optical Drive 17
Installing the Optical Drive 18
Removing the Speaker 18
Installing the Speaker 19
Removing the Power Supply 19
Installing the Power Supply 21
Removing the Processor 21
Installing the Processor 22
Removing the System Fan 22
Installing the System Fan 23
Removing the Power Switch 23
Installing the Power Switch 25
Removing the I/O Panel 25
Installing the I/O Panel 27
System Board Components 28
Removing the System Board 29
Installing the System Board 31
System Setup 33
System Setup Options 34
Table 3. System Configuration 35
Table 4. Video 36
Table 5. Security 36
System Password 37
Computrace Service 37
Absolute Software 37
Table 6. Secure Boot 38
Table 7. Performance 39
Table 8. Power Management 39
Table 9. POST Behavior 40
Table 11. Maintenance 41
Table 12. Cloud Desktop 41
Updating the BIOS 42
System and Setup Password 43
Disabling a System Password 45
Diagnostics 47
Troubleshooting Your Computer 49
Beep Code 50
Error Messages 50
Technical Specifications 55
Table 19. Communications 56
Table 20. Drives 56
Table 22. Controls and Lights 56
Table 23. Power 57
Table 24. Physical 57
Table 25. Environmental 57
Contacting Dell 59

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Dell 3020 Owner's Manual Page 29

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