Datasheet

Technical Reference
69
2.9 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 on the D915PBL board. The jumper block
determines the BIOS Setup program’s mode. Table 33 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.
OM17061
31
J8J4
Figure 20. Location of the Jumper Block
Table 33. BIOS Setup Configuration Jumper Settings
Function/Mode Jumper Setting Configuration
Normal
1-2
1
3
The BIOS uses current configuration information and
passwords for booting.
Configure
2-3
13
After the POST runs, Setup runs automatically. The
maintenance menu is displayed.
Recovery
None
13
The BIOS attempts to recover the BIOS configuration. A
recovery diskette is required.