Filter
Top Products
Raptor AT – Installation Guide
62
Checkpoint
Code
Description
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.
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.