American Megatrends Atlas PCI-II User Manual page 72

Programming the Flash ROM,
S773P.ROM S773P.ROM resides on a floppy disk and contains the updated main BIOS
code. American Megatrends will provide this file when the AMIBIOS for the
Atlantis motherboard must be updated.
S773P.ROM must be present in the root directory of the floppy disk before the
onboard Flash EPROM can be reprogrammed. The file that has the main
BIOS code must be named S773P.ROM.
Sequence of Operation The sequence of operation and expected behavior of the bootblock
BIOS code is:
Step
1 Look for floppy
disk.
2 Look for
S773P.ROM on the
floppy disk.
3 Read the floppy
disk.
4 Check for BIOS file
size.
5 Check for Flash
EPROM.
6 Erase the Flash
EPROM.
7 Program the Flash
EPROM.
8 Continue
programming the
Flash EPROM.
9 AMIFlash does a
reset.
68 Atlantis PCI Pentium II ISA Motherboard User's Guide
Continued
Expected behavior
The system beeps one time before the BIOS
attempts to read from floppy drive A:.
S773P.ROM must be in the root directory of
the floppy disk in drive A:. There is no beep
if successful.
The floppy disk is read. There is no beep if
this step is successful.
The BIOS file size is checked. There is no
beep if this step is successful.
The BIOS looks for an Intel i28F001BX-T
Flash EPROM. It does not beep if this step is
successful.
Two beeps sound when the BIOS begins
erasing the Flash EPROM.
Three beeps sound when the AMIFlash Code
begins reprogramming the Flash EPROM.
Four beeps sound when reprogramming has
been successfully completed.
A CPU reset is generated to reboot the
computer.