Intel S975XBX2 - Workstation Board Motherboard, Specification, Page: 67 / 102

Technical Reference
67
2.8 Jumper Block
CAUTION
Do not move the jumper with the power on. Always turn off the power and unplug the
power cord from the computer before changing a jumper setting. Otherwise, the
board could be damaged.
Figure 20 shows the location of the jumper block. The 3-pin jumper block determines
the BIOS Setup program’s mode. Table 32 describes the jumper settings for the three
modes: normal, configure, and recovery. When the jumper is set to configure mode
and the computer is powered-up, the BIOS compares the processor version and the
microcode version in the BIOS and reports if the two match.
Figure 20. Location of the Jumper Block
Table 32. BIOS Setup Configuration Jumper Settings
Function/Mode Jumper Setting Configuration
Normal 1-2
3 2 1
The BIOS uses current configuration information and
passwords for booting.
Configure 2-3
3 2 1
After the POST runs, Setup runs automatically. The
maintenance menu is displayed.
Recovery None
3 2 1
The BIOS attempts to recover the BIOS configuration. A
recovery diskette is required.