I have a Unisys 486 computer. It's a SX-25, with a DX-50 in it also. It's mfg date is 10/92, and style number is SG-3102-425. It's "plateau" is labelled Evaluation Unit A. That would explain the XXXX in the FCC ID field... On the motherboard itself, it has a sticker with... 43611896-000 PW300 486SX/25 9240 AVEX ...while near the 30-pin memory, printed on the board is... UNISYS PW2 300/486 PWBA 43188028-000 Does anyone know where I can find out what the jumpers do on this board? Or other specs for it? I though I heard someone mention dual processor WRT this board, but I doubt it. There is also a smaller LIF socket next to the 2 LIF processor sockets. IIRC, that is for a 487 math co-processor... --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818