Hi! I also own one of those m396f bur I couldn't make it work with different speeds. In your version of the board, are you able to change the speed of the processor? Are the jumpers working?

TIA

Hello, good morning.
I have the same motherboard but it desn't work.
All voltges are present, I see also see the reset pulse in the test card.
The processor warm normally.
Both crystals are runing, 32K and 14M.
Plate was damaged by leak of the battery (as usual) but it was repaired.
For me, probably is a BIOS issue. I do not see data transmission. It looks like dead.
I would like to load a new .bin data file in the BIOS but it is soldered to the plate. I have no enough experience to remove the BIOS chip without to damage the chip and/or the plate.
Therefore I would like to cut the chip pins and desolder one by one. In this case I will destroy the BIOS chip but I will no damage the plate.
The problem is the BIOS chip is not identify, only is writen (after to remove the sticker) M396F1. I tried to find the BIOS chip identification to buy a new or equivalent one but I was not able to find it.
Can you help me?
Thank you very much.
Regards

It uses a standard 27C512 (512 kilobits -> 64KB) chip

Thank you very much. Regards.

Hello again, I have at home the M27C256B, is it OK ?.
Thank you

It is half the size. The current bios is 64KB, so it won't fit on your ROM.

Thankyou very much.
Sorry for to give you the thanks so late but I was busy with three motherboards socket 7, none of them works. Apparently everything was OK but they do not run. Two ZIDA and one SOYO. To solve the problem it was very easy just only to put the CR2032 due to without the battery these motherboars does not run.