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5: BIOS Settings
System BIOS
How To Change the Configuration Data
Starting the Setup Utility
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The BIOS is the Basic Input Output System used in nearly all computers. The BIOS stores the
system parameters, types of disk drives, video displays, etc. in the CMOS. The CMOS memory
requires very little electrical power. When the computer is turned off, a backup battery provides
power to the CMOS logic, enabling it to retain system parameters. Each time the computer is
powered on, the computer is configured with the values stored in the CMOS by the system BIOS,
which gains control at boot up.
The CMOS information that determines the system parameters may be changed by entering the
BIOS Setup utility. This Setup utility can be accessed by pressing the <Delete> key at the
appropriate time during system boot.
Normally, the only visible power-on self-test (POST) routine is the memory test. As the memory
is being tested, press the <Delete> key to enter the main menu of the BIOS Setup utility. From the
main menu, you can access the other setup screens, such as the Security and Power menus.
Detailed descriptions are provide in the section for each parameter setting in the Setup utility.
Caution: To prevent possible boot failure, do not shut down or reset the system while updating
BIOS.
007-5467-001
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