Wait, before you solder anything there. That's going to make tracing any connection a major PITA though at least now you have these photos. So it would seem that the cache chips and memory sockets are connected via the same signals. I don't like this setup, I'm having hard time figuring out how it …

Here are some pictures of the areas I worked on (cache ram and bios chip): https://www.dropbox.com/s/xe9v2rlzjkpttqi/IMG_3484.JPG?raw=1 https://www.dropbox.com/s/hp4sgv9kg1ikdlh/IMG_3487.JPG?raw=1 https://www.dropbox.com/s/ll3cd9xlwatc9e4/IMG_3488.JPG?raw=1 I will solder some sockets to see if it …

oh well, I think I managed to kill the board as now it won't post. I was very careful while desoldering the chips, and I cannot see any damaged tracks but still, the board is such a bad quality (probably the worst I've ever seen; it flexes like a cardboard) that perhaps a via got disconnected or …

Hello, I got one of these motherboards with fake cache chips so I decided to desolder them and put some sockets with real ram (and possibly change the BIOS to be able to actually enable the cache). I know the m912 came also with real cache, so Im looking for its BIOS file to use it on mine. Funny …

Thanks! I will try your suggestions. To set the refresh in the autoexec file is a good option. I will keep digging into BIOS hacking, although with these old video cards (cirrus VLB,trident 9000i is what I have at hand) the information is scarce.

Hello! my first post around here. I've been into vintage computers for a long time and lately I got interested on the 2/3/486 machines. I have a couple of 486 motherboards running fine, the only problem is my main screen (the one I use for my other vintage machines) can't do 70hz. I connect most …