SBA-7222G-T2 Blade Module User’s Manual

 

Table A-4. Uncompressed Initialization Error Codes

 

 

Post Code

Description

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 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.

 

The amount of memory above 1 MB has been found and verified.

4Bh

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 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.

 

 

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.

 

 

 

A-8

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