CDROM reboots a system

[PostCode]

I am working a customers machine at work and am getting dumbfounded on this problem. The CDROM seems to work fine, it reads disks, is seen by windows and so forth. Now, I have tried three different CDROM drives, but it happens with all three. Tried different memory, tried turning off the cache, both internal and external, but, it still does it. Also, I tried turning off DMA access through Device Manager, but to no avail. When I try to load something, be it MS Ofice, IE 5.x, or any other program, it'll go through the setup portion of that given program, but when it actually begins to transfer data, that is, actually start to install, it will reboot. As soon as the actual program install is started, it does this. At first i thought it might be DMA acess (Windows 98 likes to setup devices on the IDE channels as such by default), but this didn't help, then possibly bad cache....nope, that didnt help. tried different RAM but to no avail. I am beginning to think that this motherboard is as buggy as they come. The deal is, the customer bought it through some online place used. It's a old Intel motherboard out of a Gateway system. TX based with a P5 233 MMX. Anyway, if anyone has encountered this problem or knows of a work around, let me know. Thanks.

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