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A few months back, I purchased a Gateway Tabor III motherboard on eBay. It had weird front panel I/O (HDD led, PWR led, etc.) issues because it used a proprietary connector, but I got that all figured out, and it was running great.
Well.. kind of. It would have weird bugs with AGP cards, I have an nVidia GeForce MX2 400 card, and it would work on other motherboards, but not the Tabor III. I thought it was an issue with the motherboard and the card, as I put a nVidia Geforce FX5200 in it and it worked fine, though I was irritated because it was supposed to be a 2001ish rig, which the GPU fit date-wise. I mention this problem because it might have something to do with what I may have seriously screwed up on.
When I got the motherboard, it came with a Pentium III Katmai 500mhz. Keep Katmai in mind.
I had a Pentium III Coppermine I kept over from a different, albeit crappier Slot 1 motherboard. (No AGP, figures.)
In my excitement to have a PIII Desktop system, as soon as I got it I upgraded it.
A system with an intel 440BX chipset. With a Coppermine. I just realized this tonight, and not only that, but I had been using the system quite a bit before. Never saw any problems, it booted up fine, and the system even recognized what it was, but when I was going over the differences between my Katmai and Coppermine, I found that Katmai uses 2V, and Coppermine uses 1.65V.
I want to know:
A) How badly damaged the processor might be (the Coppermine I put in it). The system hasn't been on for something like a month, but it smells.. weird. Like chemical. I haven't tested to see if it still works.
B ) How badly damaged the motherboard might be. This is my only decent PIII motherboard with AGP, as well as many more PCI slots than the other crappier board has, and even a single ISA slot.
When I realized the voltage differences, my heart sunk. I don't know the lengths of the damage, if there even is any at all.
The Tabor III is from around.. 1999? I think.
I can give a specific model number if it's important.
(I SHOULD HAVE LOOKED AT THEM AND LOOKED THINGS UP FOR THE TWO SECONDS IT WOULD TAKE TO FIGURE OUT THAT THERE WERE DIFFERENCES. I am so frustrated, not to mention, worried now. Hindsight is 20/20, I guess.)