sergey
Veteran Member
Hi,
I have a 386DX motherboard with ALi M1429/M1431 chipset, and it doesn't boot at all... It doesn't show post codes, and looking at the CPU, there is no activity although it does seem to get the correct clock (CLK2 = 80 MHz).
I still have to go through all the CPU signals, and figure out what prevents it from fetching the code. I'd expect that it should at least pulse address and control signals.
With that being said, I also don't see clock on the keyboard controller, pin 3. So perhaps that's the problem... If I recall correctly, the keyboard controller is what resets the CPU, or at least can reset it.
Anyhow, I am looking for the ALi M1429/M1431 chipset documentation. There seem to be a reference to Acer Laboratories, Inc., “M1429G/M1431/M1435 Data Sheet” (October 1993), in a few places. But I cannot locate the datasheet itself.
Perhaps someone here has this documentation?
Thanks,
Sergey
I have a 386DX motherboard with ALi M1429/M1431 chipset, and it doesn't boot at all... It doesn't show post codes, and looking at the CPU, there is no activity although it does seem to get the correct clock (CLK2 = 80 MHz).
I still have to go through all the CPU signals, and figure out what prevents it from fetching the code. I'd expect that it should at least pulse address and control signals.
With that being said, I also don't see clock on the keyboard controller, pin 3. So perhaps that's the problem... If I recall correctly, the keyboard controller is what resets the CPU, or at least can reset it.
Anyhow, I am looking for the ALi M1429/M1431 chipset documentation. There seem to be a reference to Acer Laboratories, Inc., “M1429G/M1431/M1435 Data Sheet” (October 1993), in a few places. But I cannot locate the datasheet itself.
Perhaps someone here has this documentation?
Thanks,
Sergey