Hello,

I recently got an Asus A7V133 rev 1.05 "for parts", someone already stole the Northbridge cooler. I still wanted to see if it's somewhat alive so I cleaned it up. After checking that no traces seem broken and straightening all pins I could see I started it up with a POST analyzer, without CPU nor RAM:

https://youtube.com/shorts/NH6Kc2OIuDg

As you can hear, the voltage regulators (can't really tell which component on the vertical card) are really unhappy and the POST card displays nothing, as there is nothing to compute stuff. The yellow capacitors on the VRM seem bulged. After a while there is a beep indicating a missing CPU.

Good, next step is the same setup but with a Duron 700. This time the board starts up and displays codes. The VRM is now happy and doesn't make horrible sounds anymore:

https://youtube.com/shorts/9KVRM8gYdfE

All voltages on the POST card are there, the reset line is clear and it gets stuck at error C1 followed by dE. This seems to indicate missing memory (which works on other cards, I even tested it after this one to see if it died in the process). It also beeps about exactly that.

Now my issue is that I have tried with PC100 and PC133 memory in every of the 3 slots and it still hangs on the same error code. Does anyone have an idea on the next steps that could be done to debug that?

What I also did:
- Added a PCI Graphic card
- Reflashed the BIOS chip
- Configure the card to manual 1.6V, 100MHz FSB instead of JumperFree mode
- Check with a multimeter if there is VCC on the DIMM slots. There is, 3.45V as is the default on this board. If I set the jumper to 3.3V it follow stat.

Thanks for your advice!