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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 23 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.
Table 23. BIOS Setup Configuration Jumper Settings
Function/Mode
Normal
Configure
Recovery
Figure 15. Location of the Jumper Block
Jumper Setting
Configuration
1-2
The BIOS uses current configuration information and
passwords for booting.
3 2 1
2-3
After the POST runs, Setup runs automatically. The
maintenance menu is displayed.
3 2 1
None
The BIOS attempts to recover the BIOS configuration. A
recovery diskette is required.
3 2 1
Technical Reference
55
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