First post, by Dant
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Recently I obtained a Supermicro P6DGH motherboard, a dual slot 1, 440GX, "extended" AT motherboard (Thanks Luckybob!) and have been testing various CPU and memory configurations in preparation of an upcoming "Ultimate AT" build log that I'm currently in the process of gathering parts for.
In my attempt at CPU testing, I've actually managed to get a single 1400mhz Tualatin Celeron in single processor mode to work! Using a Powerleap iPL-P3/T it ended up being pretty painless, which was surprising for a 440GX board that I expected to be particular about the hardware it took... However, after succeeding in getting the Celeron to work, I moved on to try a SL5XL 1400mhz Pentium III-S in the same slotket, and no matter what I set as the FSB speed on either the board or the slotket, I cannot get the board to display video or give a beep code with that CPU. Since the 440GX is limited to a 100mhz FSB (which this board will not overclock its FSB for anything) and the P3-S is intended for a 133mhz FSB, is the processor forced to run at the higher FSB speed and will not allow the machine to go to POST at a lower speed? Could it be the higher amount of cache on the CPU causing issues and simply making the CPU incompatible with the board outright? Or could there be another problem entirely I've overlooked, like voltage adjustments (though, the slotket is set for the proper 1.45v for the P3-S)?
