First post, by dominik0801
Hello!
I got an Acer V80M motherboard, which has ALI chipset on it.
I would like to fix it, as it can handle 100MHz FSB, which my other Slot1 motherboard can not.
The motherboard look brand new. Although it has 1-1 cables soldered across the board on both sides (which is how it comes out of the factory), there are no damages whatsoever.
Before I started building it into a case, I wanted to try the board, so I put a few random (but compatible) parts in it, and fired it up.
It did not POST, no beeps came from the integrated speaker either.
Since the parts I used with it are also untested, I tried other parts in it, so:
- I tried another RAM,
- Another CPU,
- Another VGA.
I checked it with my POST card, and it give me "2C" error code.
According to my pdf file, on Acer motherboards this mean
ACER (2C)Set up interrupt controller(8259).
It simply stops here, and would not proceed.
Since I would have done it anyways, I reflashed the BIOS chip, that did not fix anything, the POST code is always the same, it would not change.
I found out, that the Intel 8259 is a Programmable Interrupt Controller (PIC), but there is no such chip on the motherboard, so I guess that this motherboard uses another "equivalent", that fits the ALI chipset.
(Please correct me, if I am wrong. I actually fix hardware for a living, but these are modern stuff, and have most of the parts integrated in their BGA chipsets. So I know, that if there is an error code for, say, HDD controller initialization, it is most likely the chipset, as it controls SATA).
Under the BIOS chip, there is another IC. It is an ALi M5819P B1.
I could not find too many information about this IC, but according to the ebay listing, it has a "programmable periodic interrupt" in it.
My question is: Am I looking for the error in the right place?
Do you think, that replacing the ALi M5819P chip would fix my problem?
Do I have to program these ICs, or do they get programmed from BIOS or something?
I hope this post fits the forum.
Thanks in advance, if anyone has an idea.