NEC POWERMATE PROFESSIONAL 9000 - SERVICE, Руководство пользователя

Страница: 79 / 305

4-2 Using Tools and Utilities
System configuration information is stored in nonvolatile
memory. A nonvolatile memory device retains its data when
system power is turned off. Nonvolatile memory in your
system is stored in a complementary metal-oxide
semiconductor (CMOS) chip backed up by a battery on the
system board. The battery supplies continuous power to
CMOS memory and maintains configuration information
when system power is off (see “Replacing the Battery” in
Chapter 8).
NOTE
NECCSD recommends that you print out or
write down your current BIOS Setup parameters and
store the information in a safe place. This will
enable you to restore your system to the current
parameters if you ever need to replace the battery.
When to Use BIOS Setup
The BIOS Setup utility lets you view and set system
parameters. Use Setup to:
„
set the time and date.
„
update or check system parameters when you add or
remove expansion options.
„
change or set power management features.
„
correct a hardware discrepancy when the Power-On
Self-Test (POST) displays an error message and
prompts you to run Setup.