Supero H8QI6-F, User Manual

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B-5
Appendix B: BIOS POST Checkpoint Codes
Checkpoint Code Description
4Ch The memory below 1 MB has been cleared via a soft reset. Clearing the memory above 1 MB
next.
4Dh The memory above 1 MB has been cleared via a soft reset. Saving the memory size next. Go-
ing to checkpoint 52h next.
4Eh The memory test started, but not as the result of a soft reset. Displaying the fi rst 64 KB memory
size next.
4Fh The memory size display has started. The display is updated during the memory test. Perform-
ing the sequential and random memory test next.
50h The memory below 1 MB has been tested and initialized. Adjusting the displayed memory size
for relocation and shadowing next.
51h The memory size display was adjusted for relocation and shadowing.
52h The memory above 1 MB has been tested and initialized. Saving the memory size information
next.
53h The memory size information and the CPU registers are saved. Entering real mode next.
54h Shutdown was successful. The CPU is in real mode. Disabling the Gate A20 line, parity, and
the NMI next.
57h The A20 address line, parity, and the NMI are disabled. Adjusting the memory size depending
on relocation and shadowing next.
58h The memory size was adjusted for relocation and shadowing. Clearing the Hit <DEL> message
next.
59h The Hit <DEL> message is cleared. The <WAIT...> message is displayed. Starting the DMA
and interrupt controller test next.
60h The DMA page register test passed. Performing the DMA Controller 1 base register test next.
62h The DMA controller 1 base register test passed. Performing the DMA controller 2 base register
test next.
65h The DMA controller 2 base register test passed. Programming DMA controllers 1 and 2 next.
66h Completed programming DMA controllers 1 and 2. Initializing the 8259 interrupt controller next.
67h Completed 8259 interrupt controller initialization.
7Fh Extended NMI source enabling is in progress.
80h The keyboard test has started. Clearing the output buffer and checking for stuck keys. Issuing
the keyboard reset command next.
81h A keyboard reset error or stuck key was found. Issuing the keyboard controller interface test
command next.
82h The keyboard controller interface test completed. Writing the command byte and initializing the
circular buffer next.
83h The command byte was written and global data initialization has completed. Checking for a
locked key next.
84h Locked key checking is over. Checking for a memory size mismatch with CMOS RAM data
next.
85h The memory size check is done. Displaying a soft error and checking for a password or
bypassing WINBIOS Setup next.