Ole Juul
Veteran Member
My headless secondary DOS box lost it's BIOS - making it troublesome. Upon much inspection it dawned on me that it has one of those &!@# Dallas non-batteries. So, since it has a nice gold top in it, I'll take it out so that can be seen, and replace the board with something appropriate.
Digging around I found a socket 7 board that had 4 ISA and 3 PCI slots ... good enough. More digging through CPUs, and I decide on a Pentium 100. It's the right year, a little less favoured among other people, and is a number that none of the other Pentium machines around here has. Perfect.
Now to figure out the jumpers. It wasn't all obvious on the board, but I did finally find a very grainy pdf of a Triton manual for a board which looks identical. I wasn't comfortable until I could find the voltage jumpers. Now I'm ready to plug it in, but would still like to know some more about this board if anybody has any information. It is a very interesting one, which is why I picked it. First of all it has a large white socket labelled "VRM", presumably for the VR-Module. Can someone explain what that would be, and specifically if I should have those four jumpers sitting in it which are there now?
From my searches, it would appear that the board is a PC Chips M506 or thereabouts. This is a copy of the Intel i430FX based boards, if I understand correctly. Other interesting information is that there is only solder pad where there should be a header for a mouse connection. Apparently that is because the UMC 8663 cannot support a mouse and keyboard at the same time. Hehe, this is looking more and more like a classic second rate board. The crowning glory however is the two "write back" chips. The first thing I noticed is that they were a shiny black with very clear marking of the function rather than a brand name and a model number. If you look closely, it is obvious why they don't have a brand marking - they don't have connections! They're completely fake. I've read about those, but now I have some. Very cool. This also explains why the MB manufacturer was not too keen on putting any identifying marks on it. Check it out:
http://i793.photobucket.com/albums/yy217/Eyonymus/Computers/bits/MB-X.jpg?t=1331966004
Digging around I found a socket 7 board that had 4 ISA and 3 PCI slots ... good enough. More digging through CPUs, and I decide on a Pentium 100. It's the right year, a little less favoured among other people, and is a number that none of the other Pentium machines around here has. Perfect.
Now to figure out the jumpers. It wasn't all obvious on the board, but I did finally find a very grainy pdf of a Triton manual for a board which looks identical. I wasn't comfortable until I could find the voltage jumpers. Now I'm ready to plug it in, but would still like to know some more about this board if anybody has any information. It is a very interesting one, which is why I picked it. First of all it has a large white socket labelled "VRM", presumably for the VR-Module. Can someone explain what that would be, and specifically if I should have those four jumpers sitting in it which are there now?
From my searches, it would appear that the board is a PC Chips M506 or thereabouts. This is a copy of the Intel i430FX based boards, if I understand correctly. Other interesting information is that there is only solder pad where there should be a header for a mouse connection. Apparently that is because the UMC 8663 cannot support a mouse and keyboard at the same time. Hehe, this is looking more and more like a classic second rate board. The crowning glory however is the two "write back" chips. The first thing I noticed is that they were a shiny black with very clear marking of the function rather than a brand name and a model number. If you look closely, it is obvious why they don't have a brand marking - they don't have connections! They're completely fake. I've read about those, but now I have some. Very cool. This also explains why the MB manufacturer was not too keen on putting any identifying marks on it. Check it out:
http://i793.photobucket.com/albums/yy217/Eyonymus/Computers/bits/MB-X.jpg?t=1331966004