My board is at my place only problem is...I'm not at my place at the moment
You said that you tried a "previously used" Windows install as well. Did you try booting at Safe Mode with that installation ?
I assume that we're talking about a Intel P/X series install right ? The nFORCE install ( you had a nF790i board lately if I recall correctly, right ? ) won't work with any P/X intel chipset board.

Have you tried setting the memory timings/subtimings & chipset timings & voltages manually ?