Compaq Deskpro 4000N - Desktop PC, Maintenance & Service Manual

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6-4 Connector, Jumper, and Switch Information
6.2 System Board Jumpers
This section provides information for setting jumpers for enabling/disabling passwords and clearing
the configuration (CMOS). When you change a security feature, you will need to reset a jumper and
reconfigure the computer to recognize this change. If the system configuration is incorrect, your
computer may not work properly and you may receive error messages on the screen. Setting the
system board jumpers are part of the reconfiguration process, along with running the Computer Setup
utility.
The system board jumper settings are identical for the Deskpro 4000S and 4000N.
✎
To change the system board jumpers, you must remove the system unit cover. For assembly and
disassembly procedures, refer to Chapter 5.
CAUTION: To reduce the risk of personal injury from hot surfaces, allow the internal system components to
cool before touching.
!
WARNING: Be sure to turn off the computer before changing a jumper setting or damage to the system
board can result.