B-4
H8DGU-LN4F+ Serverboard User’s Manual
Checkpoint
Code Description
2Ah
Bus initialization system, static, output devices will be done next, if present. See the last page
for additional information.
2Eh
Completed post-video ROM test processing. If the EGA/VGA controller is not found, performing
the display memory read/write test next.
2Fh
The EGA/VGA controller was not found. The display memory read/write test is about to begin.
30h
The display memory read/write test passed. Look for retrace checking next.
31h
The display memory read/write test or retrace checking failed. Performing the alternate display
memory read/write test next.
32h
The alternate display memory read/write test passed. Looking for alternate display retrace
checking next.
34h
Video display checking is over. Setting the display mode next.
37h
The display mode is set. Displaying the power on message next.
38h
Initializing the bus input, IPL, general devices next, if present. See the last page of this chapter
for additional information.
39h
Displaying bus initialization error messages. See the last page of this chapter for additional
information.
3Ah
The new cursor position has been read and saved. Displaying the Hit <DEL> message next.
3Bh
The Hit <DEL> message is displayed. The protected mode memory test is about to start.
40h
Preparing the descriptor tables next.
42h
The descriptor tables are prepared. Entering protected mode for the memory test next.
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 fi nding 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 verifi ed.
4Bh
The amount of memory above 1 MB has been found and verifi ed. 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 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.
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.
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