Dell 3020 SFF Owner's Manual download pdf (Page 23)

c) front bezel

d) cover

4. Follow the procedures in

After Working Inside Your Computer

Removing the I/O Panel

1. Follow the procedures in

Before Working Inside Your Computer

2. Remove the:

a) cover

b) optical drive

c) drive cage

d) front bezel

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

a) Disconnect the I/O cable the computer [1].

b) Disconnect the audio cable the computer [2].

c) Disconnect the HDD LED cable the computer [3].

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

a) Remove the screw that secures the I/O panel to the chassis. [1].

b) Slide the I/O panel to release and remove it from the computer [2].

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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 9
System Overview 9
Removing the Cover 10
Installing the Cover 11
Removing the Front Bezel 12
Installing the Front Bezel 12
Removing The Expansion Card 12
Installing The Expansion Card 14
Removing the Optical Drive 14
Removing the Drive Cage 15
Installing the Optical Drive 15
Installing the Drive Cage 16
Removing the Hard Drive 17
Installing the Hard Drive 18
Removing the Speaker 18
Installing the Speaker 19
Memory Module Guidelines 19
Removing the Memory 20
Installing the Memory 20
Removing the System Fan 20
Installing the System Fan 21
Removing the Power Switch 21
Installing the Power Switch 22
Removing the I/O Panel 23
Installing the I/O Panel 24
Removing the Power Supply 24
Installing the Power Supply 27
Removing the Processor 29
Installing the Processor 30
Removing the Intrusion Switch 30
System Board Components 31
Removing the System Board 32
Installing the System Board 34
System Setup 35
System Setup Options 36
Table 3. System Configuration 37
Table 4. Video 38
Table 5. Security 38
System Password 39
Computrace Service 39
Absolute Software 39
Table 6. Secure Boot 40
Table 7. Performance 41
Table 8. Power Management 41
Table 9. POST Behavior 42
Table 11. Maintenance 43
Table 12. Cloud Desktop 43
Updating the BIOS 44
Clearing Forgotten Password 45
Clearing CMOS 45
System and Setup Password 45
Disabling a System Password 47
Diagnostics 49
Troubleshooting Your Computer 51
Beep Code 52
Error Messages 52
Technical Specifications 57
Table 25. Internal Connectors 59
Table 26. Controls and Lights 59
Table 27. Power 60
Table 28. Physical 60
Table 29. Environmental 60
Feature Specification 61
Contacting Dell 63

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Dell 3020 SFF Owner's Manual Page 23

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