Specifications

Appendix F AMI BIOS error codes 87
BIOS Checkpoint Codes
The following list of checkpoint codes gives the number for each
checkpoint for the AMI BIOS POST. Codes are Copyright AMI-
BIOS CHECK-POINT © 1991 American Megatrends Inc., All
Rights Reserved. 1346 Oakbrook Dr. #120. GA 30093. Phone:
(404)-263-8181, Fax: [phone]
Code Description of Check-point
01 Processor register test about to start.
NMI to be disabled.
02 NMI is Disabled.
Power on delay starting.
03 Power on delay complete.
Any initialization before keyboard BAT is in progress.
04 Any initialization before keyboard BAT is complete.
Reading keyboard SYS bit
05 Soft reset/power-on determined.
Going to enable ROM. i. e. disable shadow RAM/Cache if
any.
06 ROM is enabled.
Calculation ROM BIOS checksum
07 ROM BIOS checksum passed
08 BAT command to keyboard controller is issued.
Going to verify the BAT command.
09 Keyboard controller BAT result verified.
Keyboard command byte to be written next.
0A Keyboard command byte chewed is issued.
Going to write command byte data.
0B Keyboard controller command byte is written.
Going to issue Pin-23, 24 blocking/unblocking command
0C Pin-23, 24 of keyboard controller is block/unblocked
NOP command of keyboard controller to be issued next.
0D NOP command processing is done.
CMOS shutdown register test to be done next.
0E CMOS shutdown register R/W test passed.
Going to calculate CMOS checksum
0F CMOS checksum calculation is down
10 CMOS initialization done (if any).
CMOS status register about to init for Date and Time.