Technical Reference
47
2.3 BIOS Configuration 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 12 shows the location of the jumper block. The 3-pin jumper block determines
the BIOS Setup program’s mode. Table 21 describes the jumper settings for the three
modes: normal, configure, and recovery.
Figure 12. Location of the Jumper Block
Table 21. BIOS Setup Configuration Jumper Settings
Function/Mode
Jumper
Setting
Configuration
Normal 1-2 The BIOS uses current configuration information and passwords for
booting.
Configure 2-3 After the POST runs, Setup runs automatically. The maintenance menu
is displayed.
Note that this Configure mode is the only way to clear the BIOS/CMOS
settings. Press F9 (restore defaults) while in Configure mode to restore
the BIOS/CMOS settings to their default values.
Recovery None The BIOS attempts to recover the BIOS configuration. A recovery CD
or USB flash drive is required.
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