Acer 1000 manual Rom

Beep Code	Post Code	Description		What to Check (Recommended)
1-2-4-1	1Ch	Reset Programmable	•	Treat as an expansion card problem.
		Interrupt Controller	•	Check the main board.
1-3-1-1	20h	Test DRAM refresh.	•	Check the system memory.
			•	Check the main board.
1-3-1-3	22h	Test 8742 keyboard	•	Check the keyboard.
		controller.	•	Check the keyboard controller.
			•	Check the main board.
1-3-2-1	24h	Set ES segment register	•	Check the main board.
		to 4GB.
1-3-3-1	28h	Autosize DRAM.	•	Check the system memory.
			•	Check the main board.
1-3-3-3	2Ah	Clear 512K base RAM.	•	Check the system memory.
			•	Check the main board.
1-3-4-1	2Ch	RAM failure on address	•	Check the system memory.
		line xxxx.	•	Check the main board.
1-3-4-3	2Eh	RAM failure on data bits	•	Check the system memory.
		xxxx of low byte of	•	Check the main board.
		memory bus.
1-4-1-3	32h	Test CPU bus-clock	•	Check the processor.
		frequency.	•	Check the main board.
1-4-2-1	34h	COMS RAM read/write	•	Check the main board.
		failure.
1-4-2-4	37h	Reinitialize the chipset.	•	Check the main board.
1-4-3-1	38h	Shadow system BIOS	•	Check the expansion cards.
		ROM.	•	Check the system memory.
			•	Check the main board.
1-4-3-2	39h	Reinitialize the cache.	•	Check the secondary cache.
			•	Check the processor.
			•	Check the main board.
1-4-3-3	3Ah	Autosize cache.	•	Check the secondary cache.
			•	Check the processor.
			•	Check main board.
1-4-4-1	3Ch	Configure advanced	•	Check the main board.
		chipset registers.
1-4-4-2	3Dh	Load alternate registers	•	Check the main board.
		with CMOS values.
2-1-1-1	40h	Set Initial CPU speed.	•	Check the main board.
2-1-1-3	42h	Initialize interrupt vector.	•	Treat as an expansion card problem.
			•	Check the main board.
2-1-2-1	44h	Initialize BIOS interrupt.	•	Treat as an expansion card problem.
			•	Check the main board.
2-1-2-3	46h	Check ROM copyright	•	Check the main board.
		notice.

88 Chapter 4