Acer 1000 manual Beep Code Post Code Description What to Check Recommended

Beep Code	Post Code	Description		What to Check (Recommended)
3-2-1-1	90h	Initialize hard disk	•	Check the HDD.
		controller.	•	Check the floppy disk drive(s).
			•	Check the main board.
3-2-1-2	91h	Initialize local bus hard	•	Check the HDD.
		disk controller.	•	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	•	Check the main board.
		register.
3-2-3-1	98h	Search for option ROMs.	•	Check the main board.
3-2-3-3	9Ah	Shadow for option	•	Check the expansion cards.
		ROMs.	•	Check the system memory.
			•	Check the main board.
3-2-4-1	9Ch	Set up Power	•	Check the main board.
		Management.
3-2-4-3	9Eh	Enable hardware	•	Treat as an expansion card problem.
		interrupts.	•	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	•	Check the main board.
		boot operating system.
3-4-2-1	B4h	One beep.	•	Check the main board.
3-4-2-3	B6h	Check password	•	Check the main board.
		(optional).
3-4-3-1	B8h	Clear global descriptor	•	Check the main board.
		table.
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	•	Check the main board.
		reminders.

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