Technical Reference
73
2.9 Jumper Block
CAUTION
Do not move any jumpers 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 13 shows the location of the jumper block. This 3-pin jumper block determines the BIOS
Setup program’s mode. Table 51 describes the jumper settings for the three modes: normal,
configure, and recovery.
When the jumper is set to configuration mode and the computer is powered-up, the BIOS
compares the CPU version and the microcode version in the BIOS and reports if the two match.
OM10047
1
J7C1
3
Figure 13. Location of the Jumper Block
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