William L. Maltby wrote: > So, if you've got the leeway, try manually bumping the voltage for the > unit a couple of tenths. Risk is low, but it is there. > The OP said earlier he has an Intel D975XBX motherboard. Intel boards are very conservatively engineered, and don't have tweaks for overclocking, out of spec memory voltages, or any of the rest of that. They just work, if the parts meet their spec. If the parts don't meet the spec, then all bets are off.