Acer Altos G300 Series User Manual
Page 139
 
127
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 
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. 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.
54h
Shutdown was successful. The CPU is in real mode. 
Disabling the Gate A20 line, parity, and the NMI 
next.
Checkpoint Code
Description
aa300.book Page 127 Tuesday, December 17, 2002 5:27 PM