
System Board Labels
Table 2 lists the labels for connectors and sockets on your system board, and it gives a brief description of their functions.
Table 2. System Board Connectors and Sockets
Removing and Replacing the AGP Card Brace (Mini Tower Chassis Only)
To access some components on the system board in the mini tower chassis, you may need to first remove the accelerated graphics port (AGP)
card brace that secures an AGP card in the AGP socket.
1. Remove the computer cover as instructed in "Removing the Computer Cover."
Password features are disabled.
Real-time clock reset. Can be used for troubleshooting purposes.
Hard-disk drive LED connector
CD-ROM audio interface connector
Diskette/tape drive interface connector
External speaker connector
Microprocessor fan connector
Chassis intrusion switch connector
Parallel port connector; sometimes referred to as LPT1
PCI expansion-card connector
Main power input connector
3.3-V power input connector
Primary microprocessor connector
Secondary microprocessor connector
Remote Wakeup power connector
NOTE: Your computer has either an AGP card or an AGP card clip.
CAUTION: Before you remove the computer cover, see "Safety First—For You and Your Computer."
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