Jumper Block; Location Of The Jumper Block - Intel DH77DF Specification

Technical Reference
2.3

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 15 shows the location of the jumper block. The 3-pin jumper block determines
the BIOS Setup program's mode. Table 36 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 15. Location of the Jumper Block
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