Справочник Пользователя для National Instruments NI PXI-8104

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Load Setup Defaults—This setting restores all BIOS settings to the 
factory default. This is useful if the controller exhibits unpredictable 
behavior due to an incorrect or inappropriate BIOS setting. Notice 
that any nondefault settings such as boot order, passwords, and 
keyboardless operation are restored to their factory defaults. This may 
produce undesirable behavior, and in heavily customized cases, may 
cause the controller to malfunction or fail to boot.

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Discard Changes—Any changes made to BIOS settings during 
this session of the BIOS setup program are discarded. Unlike Exit 
Discarding Changes, however, the BIOS setup continues to be active.

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Save Changes—Changes made to BIOS settings during this session 
are committed to battery-backed System CMOS. The setup program 
remains active, allowing further changes.

The NI PXI-8104 contains a backed-up memory used to store BIOS 
configuration information.

Complete the following steps to clear the CMOS contents:

1.

Power off the chassis.

2.

Remove the controller from the chassis.

3.

Move the jumper on W7 from pins 1–2 to pins 2–3, as shown in 
Figure 2-3.

4.

Wait one second. Move the jumper back to pins 1–2.

5.

Reinstall the controller in the chassis. 

Do not leave the jumper on pins 2–3. Doing so decreases battery life. In addition, 

leaving the jumper on the pins prevents the controller from booting.