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At&t Globalyst 600 Motherboard Replacement Recommendations

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First post, by THIRSTYLOTUS

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The the day, I picked up an At&t Globalyst 600 and the motherboard is damaged beyond repair. I believe someone hit it with a hammer a lot, or something heavy was smashing around in there (could have been the CPU). Cracked chips, broken traces, and components knocked off the board. Its a sad sight. So I would like to find a replacement.

It uses an LPX style motherboard with 5 expansion slots in the left hand side of the board (near the VGA port) and 4 expansion slots on the right hand side (near the PS/2 ports). Im aware of how LPX motherboards are not standardized. So I'm looking for suggestions on replacement boards. I found 2 on ebay that are At&t branded but I'm open to other options. If needed I can make up some new bracketry if the riser is not an exact fit hight wise.

It came with a 90Mhz socket 5 Pentium. I straighted all of the mangled pins and it now fits in the socket again, so I do believe that processor should still work. Not that I have to use that processor but I would like to keep this machine a Pentium, Pentium MMX or k6. So the motherboard must be socket 5 or 7. Preferably a board with a turbo switch header.

Thank you.

P.S. Attached is a photo of the computer when I first got it but with the CPU, which was loose in there, taken out.

The attachment PXL_20210805_232358203.jpg is no longer available

Reply 1 of 1, by dionb

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The motherboard is an Intel Intel Premiere/PCI GX board with LPX form factor. As you point out, LPX is poorly standardized, but here one advantage is that it's an Intel OEM board, and Intel LPX boards are generally interchangeable - AT&T, Packard Bell and others used successive boards in the same chassis.

That gives you quite a few options. Another Premiere/PCI GX would be nice and original, but for Pentium MMX support you could look for an NV430VX (note that not all support MMX, there needs to be a voltage regulator near the CPU for that to work). I'm having trouble figuring out the turbo situation, the GX seems to have a Turbo LED connector but no turbo switch... to be honest though, given how rare LPX motherboards of any description are, unless you have a glut of the things and can be choosy, any Intel OEM LPX board would be the first port of call.

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