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Appendix A: AMIBIOS POST Checkpoint Codes
122
POST Checkpoint Codes
Bootblock Recovery Codes
The bootblock recovery checkpoint codes are listed in order of
execution:
Checkpoint Code Description
E0h The onboard floppy controller if available is
initialized. Next, beginning the base 512 KB
memory test.
E1h Initializing the interrupt vector table next.
E2h Initializing the DMA and Interrupt controllers next.
E6h Enabling the floppy drive controller and Timer
IRQs. Enabling internal cache memory.
Edh Initializing the floppy drive.
Eeh Looking for a floppy diskette in drive A:. Reading
the first sector of the diskette.
Efh A read error occurred while reading the floppy
drive in drive A:.
F0h Next, searching for the AMIBOOT.ROM file in the
root directory.
F1h The AMIBOOT.ROM file is not in the root directory.
F2h Next, reading and analyzing the floppy diskette
FAT to find the clusters occupied by the
AMIBOOT.ROM file.
F3h Next, reading the AMIBOOT.ROM file, cluster by
cluster.
F4h The AMIBOOT.ROM file is not the correct size.
F5h Next, disabling internal cache memory.
FBh Next, detecting the type of flash ROM.
aa300.book Page 122 Tuesday, December 17, 2002 5:27 PM