4
BIOS Setup and Diagnostics
Software Setup
After hardware configuration of the 80486VESA system board is
completed, and system hardware has been assembled, the com-
pleted system may be powered-up. At this point, software setup
should be run to ensure that the system information is correct.
The System Setup is sometimes called CMOS Setup or Standard
Setup. Normally, system setup is needed when the system
hardware is not identical with the information contained in the
CMOS RAM, or whenever the CMOS RAM has lost power.
Running AM1 BIOS
When the system is powered on, the BIOS will enter the Power-On
Self Test (POST) routines. These routines are divided into two
phases:
System Test and Initialization (test and initialize system
boards for normal operations)
System Configuration Verification (compare defined
configuration with hardware actually installed)
The AMI BIOS performs the various diagnostic checks at the time
the system is powered up; if an error is encountered, the error will
be reported in one of two different ways. If the error occurs before
the display device is initialized, a series of beeps will be
transmitted (See Appendix C).
16 80486 VESA User’s Manual
