First post, by curggles@gmail.com
So I was trying to buy a case to build a 486 machine I assembled parts for and ended up picking up a nice little at case for 50 bucks. To my surprise it came with a fully working 386 system in it. It is a pcchips m321 motherboard with a soldered on am486 dx40, no fpu, 4mb of ram and even the 80mb hard drive is fully functional. I have been using it and kinda want to keep it together now. It still has the nicad internal battery which I will be removing right away. I just don't know how the external battery connector works. It's 4 pin and pins 2&3 are jumpered. I can't find the manual for this board but found one for a m326 pcchips board which has the same external connector and says the jumper is to enable charging and pins 1 and 2 are for power and ground of external battery which I believe this board will be the same. But I'm not sure if I should use the same voltage battery as this manual says as it says 6v external. The nicad is only 3.6 and I am not sure if there would be resistors to drop the voltage back on this motherboard. Any info on this connector and what I should do for voltage for an external pack would be appreciated.
Asus p55t2p4 PEntium 200, 48mb ram, Cirrus logic 5446 PCI, diamond monster voodoo 3d, ISA Asus vibra 16.
PCChips m321, am386 dx40, 4mb ram, trident 8900c ISA, Creative labs SB16 CT2230.
Ap43 Intel i486dx4-100 also have a amd am486dx2-66v16bcg.