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Acer 1000 Manual Do Utilizador

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Chapter 4
91
3-2-1-1
90h
Initialize hard disk 
controller.
•  
Check the HDD.
•  
Check the floppy disk drive(s).
•  
Check the main board.
3-2-1-2
91h
Initialize local bus hard 
disk controller.
•  
Check the HDD.
•  
Check the floppy disk drive(s).
•  
Check the main board.
3-2-1-3
92h
Jump to UserPatch2.
•  
Check the main board.
3-2-2-1
94h
Disable A20 address line.
•  
Check the keyboard.
•  
Check keyboard controller.
•  
Check the main board.
3-2-2-3
96h
Clear huge ES segment 
register.
•  
Check the main board.
3-2-3-1
98h
Search for option ROMs.
•  
Check the main board.
3-2-3-3
9Ah
Shadow for option 
ROMs.
•  
Check the expansion cards.
•  
Check the system memory.
•  
Check the main board.
3-2-4-1
9Ch
Set up Power 
Management.
•  
Check the main board.
3-2-4-3
9Eh
Enable hardware 
interrupts.
•  
Treat as an expansion card problem.
•  
Check the main board.
3-3-1-1
A0h
Set time of day.
•  
Check the main board.
3-3-1-3
A2h
Check key lock.
•  
Unlock the key lock if it is locked.
•  
Investigate possible problem with 
the key lock switch. If it is either 
unlocked already or not present on 
the system case.
•  
Check the main board.
3-3-3-1
A8h
Erase F2 prompt.
•  
Check the video card.
•  
Check the main board.
3-3-3-3
AAh
Scan for F2 key stroke.
•  
Check the main board.
3-3-4-1
ACh
Enter SETUP.
•  
Check the main board.
3-3-4-3
AEh
Clear in-POST flag.
•  
Check the main board.
3-4-1-1
B0h
Check for errors.
•  
Check the main board.
3-4-1-3
B2h
POST done - prepare to 
boot operating system.
•  
Check the main board.
3-4-2-1
B4h
One beep.
•  
Check the main board.
3-4-2-3
B6h
Check password 
(optional).
•  
Check the main board.
3-4-3-1
B8h
Clear global descriptor 
table.
•  
Check the main board.
3-4-4-1
BCh
Clear parity checkers.
•  
Check the main board.
3-4-4-3
BEh
Clear screen (optional).
•  
Check the video card.
•  
Check the main board.
3-4-4-4
BFh
Check virus and backup 
reminders.
•  
Check the main board.
Beep Code
Post Code
Description
What to Check (Recommended)