Gateway 486VL dual cpu

[Rookie]

Hello all, I did some horsetrading and ended up with four Gateway 486 mobos, several ATI vesa local bus vid cards, l2 4mb 72pin ram chips, several 486/66 cpu, and alot of multi IO cards with no docs, 3 old WD hdd that post as pio 1, a Gateway power supply and 2 Gateway cases (pizza box, not towers).
2 of the boards boot fine, there faster than the AMI bios 486's I had before, and these see up to 2.1 g for each ide channel.
One is a dual ide, pci board that did post for awhile but wont any more.
One of them I covet- its a dual cpu that I cant get to post, I hear it counting the ram, but no video. This one has a cache chip that looks like a ram chip,but has more than 72 pins.
I called Gateway tech support and they found docs on the 2 boards I managed to get running: jx30 bios. But they dont know anything about the other 2 boards.
The guy told me that some boards from that vinatage are grounded to the case- through the ferrles that support the mobo and are what the mobo screws into. I was unsuccessful at getting any other AT mobo to post in the Gateway cases- I suspect the mobo grounding out.
It says on em Micron made the boards, I went to their site and Gateways all I could find is a picture of a board that is close but no cigar.
Anyone know anything about this setup?

[This message has been edited by Rookie (edited 12-14-1999).]

[Eli]

Just a thought, but are you sure that second socket on the "dual" board isn't just the math co-processor socket?

[Rookie]

Thanks Eli, how do I determine that? I dont think it is...I had an older, AMI 1993 bios date Elitegroup 486 that had a 386 socket for the coprocessor.
This board has 2 486 sockets. But I dont know for sure.
At the Gateway site I saw the picture of a dual 486 and it looks alot like mine but is a little different. They didnt have mine shown. Maybe I could try the Micron site?
I looked around there and didnt see any where to look up vintage stuff- only their new offerings.
Rookie

[CMonster]

Look carefully at the the board for numbers printed there by the CPU sockets - if one of them has a "487" printed by it then it is for a math coprocessor (which was actually a 486DX chip), and not a dual CPU board. Once you plug a 486DX into the 487 slot the first CPU does nothing.

[Rookie]

Thanks Cmonster, one of the cpu slots says:
C389, the other one says *upgrade* C388.
I did find docs on it at Microns web site, when I searched the model #. There are dip switches that need to be set everytime you change the ram size and bank position.
Maybe thats why it wouldnt post...will know soon.
Thanks to all that replied.
Rookie