Supermicro SUPERSERVER 6011H, User Manual, Page: 105 / 112

B-5
Appendix B: AMIBIOS POST Diagnostic Error Codes
Checkpoint Code Description
43h Entered protected mode. Enabling interrupts for
diagnostics mode next.
44h Interrupts enabled if the diagnostics switch is on.
Initializing data to check memory wraparound at 0:0
next.
45h Data initialized. Checking for memory wraparound at
0:0 and finding the total system memory size next.
46h The memory wraparound test is done. Memory size
calculation has been done. Writing patterns to test
memory next.
47h The memory pattern has been written to extended
memory. Writing patterns to the base 640 KB memory
next.
48h Patterns written in base memory. Determining the
amount of memory below 1 MB next.
49h The amount of memory below 1 MB has been found
and verified. Determining the amount of memory above
1 MB memory next.
4Bh The amount of memory above 1 MB has been found
and verified. Checking for a soft reset and clearing the
memory below 1 MB for the soft reset next. If this is a
power on situation, going to checkpoint 4Eh next.
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. Going to check
point 52h next.
4Eh The memory test started, but not as the result of a soft
reset. Displaying the first 64 KB memory size next.
4Fh The memory size display has started. The display is
updated during the memory test. Performing 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. Testing the memory above 1 MB next.
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.