Found the jumper after watching a short presentation clip of an Italian guy on youtube If someone has the same family of motherboards and want to change the speed from 25 to 33, it's the 2 jumpers in the picture below. No need for upgrade for me. I have 2x 386, 2x 486, 2x P1, plenty speeds to choose …

I thought I have the same computer M4 434S but it turns out it is not quite the same. I'm missing a few jumpers and the M4 434S has on board audio from OPTi, mine hasn't that is why it seems so clean. I put in a DX2 66, it sees it as DX2 but CPU speed is still 50MHz. I moved the jumpers in various …

Any progress on this matter? I've got a 486 SX2 50 from Olivetti and I could not find anything on this motherboard on the internet. I don't dare to replace the sx2 50 with the dx2 66 I have without knowing which jumpers to set, not that I switch off the wrong jumper and fry the computer (would not …

I think this is my case too! After I removed the battery, I cleaned as much as I could with IPA and tried the external battery connector with 3xAAA rechargeables. But with or without battery, it does not start at all, nor does it beep anymore. Before this it was beeping like crazy but no monitor …

I've purchased the same computer for about 15$ and had a lot of problems with it. After the trouble of finding working ram modules for it (only managed to get 224mb of 3 kinds that would work with this mb) now I want to install an ISA sound card big enough just not to fit, except by removing the CPU …

The other side is fine. No corrosion at all. I'll bring the board to a technician next week to be checked. I've seen videos on youtube where really messed up PCBs got cleaned up proffesionally. Maybe there is hope for this mb to be saved.

Any update on this how it went? Did you save the board in the end somehow? I've got the same problem, only I am not sure what the real damage is. The status now is that the motherboard does not start/beep at all. Only thing is that the CPU heats very much, 30 seconds after I start the power source. …