Table Of Contents - Dell Vostro 420 Service Manual

Table of Contents

Removing The Bezel2
Replacing The Bezel2
Flashing The Bios From A Cd4
Flashing The Bios From The Hard Drive4
Pci And Pci Express Cards8
Removing The Coin-Cell Battery11
Replacing The Coin-Cell Battery11
Contacting Dell12
Removing The Computer Cover13
Replacing The Computer Cover13
Removing The Processor15
Replacing The Processor15
Removing A Hard Drive17
Media Card Reader21
Removing An Optical Drive25
Removing The Chassis Fan29
Replacing The Chassis Fan30
Removing The Processor Heat Sink/Fan Assembly32
Removing The I/O Panel34
Removing Memory Modules36
Removing The Power Supply38
Replacing The Power Supply38
Dc Power Supply Connectors39
Remove The System Board43
Replacing A System Board44
Entering The System Setup Program46
System Setup Program Screens46
System Setup Program Options47
Boot Sequence47
Option Settings48
Changing Boot Sequence For The Current Boot48
Changing Boot Sequence For Future Boots48
Clearing Forgotten Passwords48
Clearing Cmos Settings49
Troubleshooting52
Power Lights52
Beep Codes52
System Messages53
Hardware Troubleshooter53
When To Use The Dell Diagnostics54
Starting The Dell Diagnostics From Your Hard Drive54
Dell Diagnostics Main Menu55
Solving Problems56
Battery Problems56
Optical Drive Problems57
Hard Drive Problems57
Error Messages58
Ieee 1394 Device Problems58
Keyboard Problems59
Lockups And Software Problems59
Memory Problems60
Mouse Problems61
Network Problems61
Power Problems61
Printer Problems62
Scanner Problems63
Sound And Speaker Problems63
No Sound From Speakers63
Video And Monitor Problems64
Dell Technical Update Service65
Accessing The Dell Support Utility65
Double-Clicking The Dell Support Icon66
Recommended Tools67
Before Working On Your Computer67
Turning Off Your Computer67
Inside View Of Your Computer68
System Board Components69
After Working On Your Computer71