Cmos Clear Switch; Locating The Cmos Clear Switch - NEC VERSA S Service Manual

CMOS CLEAR SWITCH

The CMOS clear switch deletes the system configuration information that was stored in
CMOS memory by the SCU. Use this switch when a user forgets his password. Activating
the switch will clear the old password, allowing him to set a new one. After activating the
switch, the SCU must be run to reenter the sytem configuration information (date, time,
hard disk type, and so on).
Follow these steps to clear CMOS memory.
1. Turn off system power.
Move the keyboard out of the way (see "Removing the Keyboard" in Section 4,
2.
Options). Do not disconnect the keyboard cables from the system board.
Locate the CMOS clear switch on the system board.
3.
Figure Section 5-1 Locating the CMOS Clear Switch
4. Turn on the system power.
CAUTION: Activating the CMOS clear switch
deletes required system configuration information
stored in CMOS memory. After activating this
switch, run the SCU to reenter the system infor-
mation (date, time, hard disk type, and so on).
CAUTION: Do not use a conductive tool
(screwdriver, metal paper clip, and so on) to set
the CMOS clear switch. A conductive tool could
cause a short circuit and damage the system
board.
Troubleshooting and Repair
CMOS Clear
Switch
5-3