Acer Altos G300 Series User Manual
Page 136
 
Appendix A: AMIBIOS POST Checkpoint Codes
124
0Eh
The keyboard controller BAT command result has 
been verified. Next, performing any necessary 
initialization after the keyboard controller BAT 
command test.
0Fh
The initialization after the keyboard controller BAT 
command test is done. The keyboard command 
byte is written next.
10h
The keyboard controller command byte is written. 
Next, issuing the Pin 23 and 24 blocking and 
unblocking command.
11h
Next, checking if <End> or <Ins> keys were 
pressed during power on. Initializing CMOS RAM if 
the Initialize CMOS RAM in every boot AMIBIOS 
POST option was set in AMIBCP or the <End> key 
was pressed.
12h
Next, disabling DMA controllers 1 and 2 and 
interrupt controllers 1 and 2.
13h
The video display has been disabled. Port B has 
been initialized. Next, initializing the chipset.
14h
The 8254 timer test will begin next.
19h
The 8254 timer test is over. Starting the memory 
refresh test next.
1Ah
The memory refresh line is toggling. Checking the 
15 second on/off time
next.
23h
Reading the 8042 input port and disabling the 
MEGAKEY Green PC feature next. Making the BIOS 
code segment writable and performing any 
necessary configuration before initializing the 
interrupt vectors.
24h
The configuration required before interrupt vector 
initialization has completed. Interrupt vector 
initialization is about to begin.
Checkpoint Code
Description
aa300.book Page 124 Tuesday, December 17, 2002 5:27 PM