Dell Precision Tower 3420 Owner's Manual page 4

Removing the system board
Installing the system board
System board components
3 System Setup....................................................................................................... 28
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Boot Sequence
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Navigation keys
System Setup options
Updating the BIOS
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Jumper settings
System and setup password
Assigning a system password and setup password
Deleting or changing an existing system and/or setup password
Disabling a system password
4 Diagnostics.......................................................................................................... 41
Enhanced Pre-Boot System Assessment (ePSA) diagnostics
Troubleshooting your computer
Power LED diagnostics
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Beep code
Error messages
5 Specifications...................................................................................................... 47
6 Contacting Dell................................................................................................... 53
4
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