Dell OptiPlex 990 Mini-Tower - Page 6

Dell OptiPlex 990 Mini-Tower

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6

Table of Contents

Notes, Cautions, and Warnings2
- Table of Contents3
1 Working on Your Computer7
- Before Working Inside Your Computer7
- Recommended Tools8
- Turning off Your Computer9
- After Working Inside Your Computer9
2 Cover11
- Removing the Cover11
- Installing the Cover12
3 Front Bezel13
- Removing the Front Bezel13
- Installing the Front Bezel14
4 Expansion Card Tab15
- Removing the Expansion Card15
- Installing the Expansion Card17
5 Optical Drive19
- Removing the Optical Drive19
- Installing the Optical Drive20
6 Hard Drive21
- Removing the Hard Drive21
- Installing the Hard Drive22
7 Memory23
- Removing the Memory23
- Installing the Memory24
8 Chassis Intrusion Switch25
- Removing the Chassis Intrusion Switch25
- Installing the Intrusion Switch26
9 Speaker27
- Removing the Speaker27
- Installing the Speaker28
10 Heat Sink29
- Removing the Heat Sink and Processor29
- Installing the Heat Sink and Processor31
11 Coin-Cell Battery33
- Removing the Coin-Cell Battery33
- Installing the Coin-Cell Battery34
12 Power-Switch Cable35
- Removing the Power-Switch Cable35
- Installing the Power-Switch Cable36
13 Front Thermal Sensor39
- Removing the Front Thermal Sensor39
- Installing the Front Thermal Sensor40
14 Chassis Fan41
- Removing the System Fan41
- Installing the System Fan42
15 Input/Output Panel43
- Removing the Input/Output Panel43
- Installing the Input/Output Panel44
16 Power Supply47
- Removing the Power Supply47
- Installing the Power Supply49
17 System Board51
- Removing the System Board51
- Installing the System Board52
18 System Setup53
- Boot Menu53
- Boot Menu Enhancements53
- Timing Key Sequences54
- Beep Codes and Text Error Messages55
- Navigation55
- System Setup Options55
19 Troubleshooting67
- Diagnostic Leds67
- Beep Codes74
- Error Messages77
20 Specifications87
- Technical Specifications87
21 Contacting Dell97

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