User`s guide

38 007-4274-001
3: Configuring Software and Utilities
Using BIOS Setup
This section describes the BIOS Setup options. Use Setup to change the system
configuration defaults. You can run Setup with or without an operating system being
present. Setup stores most of the configuration values in battery-backed CMOS; the rest
of the values are stored in flash memory. The values take effect when the system is
booted. POST uses these values to configure the hardware; if the values and the actual
hardware do not agree, POST generates an error message. You must then run Setup to
specify the correct configuration.
Run Setup: Run Setup to modify any standard PC-AT baseboard feature such as:
• Select diskette drive
• Select parallel port
• Select serial port
•Settime/date(tobestoredinRTC)
• Configure hard drive(s)
• Specify boot device sequence
•EnableSCSIBIOS
Run SSU, not Setup: Run the SSU instead of Setup to do the following:
• Enter or change information about a board
• Alter system resources (for example, interrupts, memory addresses, I/O
assignments) to user-selected choices instead of choices selected by the BIOS
resource manager
Starting Setup
Setup can be entered under several conditions:
• When you turn on the system, after POST completes the memory test.
• When you reboot the system by pressing <Ctrl+Alt+Del> while at the DOS
operating system prompt.