Technical Product Specification

Technical Reference

2.4 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 38 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