Supermicro SUPERSERVER 6021F, User Manual

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S
UPER
S
ERVER
6021F
User's Manual
B-2
APPENDIX B
B-2 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.
FCh Next, erasing the flash ROM.
FDh Next, programming the flash ROM.
FFh Flash ROM programming was successful. Next, restarting the system
BIOS.
B-3 Uncompressed Initialization Codes
The following runtime checkpoint codes are listed in order of execution.
These codes are uncompressed in F0000h shadow RAM.
Checkpoint Code Description
03h The NMI is disabled. Next, checking for a soft reset or a power on
condition.
05h The BIOS stack has been built. Next, disabling cache memory.
06h Uncompressing the POST code next.
07h Next, initializing the CPU and the CPU data area.
08h The CMOS checksum calculation is done next.
0Ah The CMOS checksum calculation is done. Initializing the CMOS status
register for date and time next.
0Bh The CMOS status register is initialized. Next, performing any required
initialization before the keyboard BAT command is issued.
0Ch The keyboard controller input buffer is free. Next, issuing the BAT
command to the keyboard controller.
0Eh The keyboard controller BAT command result has been verified. Next,
performing any necessary initialization after the keyboard controller BAT
command test.
0Fh The initialization after the keyboard controller BAT command test is done.
The keyboard command byte is written next.
10h The keyboard controller command byte is written. Next, issuing the Pin 23
and 24 blocking and unblocking command.
11h Next, checking if <End or <Ins> keys were pressed during power on.