Computer Setup (F10) Utility Guide

Computer Setup (F10) Utility Guide www.hp.com 25
Computer Setup (F10) Utility
Recovering the Configuration Settings
There are two ways to recover the Configuration Settings established
in the Computer Setup (F10) Utility.
Method One: Flash ROM CMOS Archive and Restore
Feature—Using Power Switch Override
F10 Computer Setup CMOS Configuration Settings are stored in
Non-Volatile RAM (NVRAM).
Each time the computer starts, the system ROM saves a copy of
NVRAM (including CMOS, passwords, and other system variables)
in the flash ROM. Should the system become unstable, the last known
good copy of NVRAM can be restored using a feature called “power
button override.” To restore NVRAM do the following:
1. With the unit powered down, press and release the power button.
2. Immediately after pressing the power button (during POST),
press and hold the power button until the unit powers down (about
four seconds).
At the next startup, the ROM detects this “power button override”
event and the backup copy of NVRAM is restored automatically.
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CAUTION: Unplugging the power cord during POST can corrupt the
splash screen (the logo screen seen during POST). Flashing the ROM is
required to restore the splash screen, although the computer will continue
to function normally.
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Because of the “power button override “feature, you cannot power off
the computer with the power button immediately after powering up
during POST (Power-On Self-Test). The video display must be active
before the computer can be powered off by pushing the power button.