Originally Posted by mxmightymc
what will happen if I use 4 sticks of memory???
If you use four sticks, you won' be able to push your FSB anywhere near as far as with two sticks. Four sticks require you up the northbridge voltage to help the memory controller deal with the added stress (vs two sticks), which creates more heat, preventing you from OCing as much. In my case, I couldn't get my overclock at a 400 MHz FSB or 356 MHz FSB (1600 and 1426 from the BIOS perspective) with four sticks of memory, regardless of what timings and dividers I used. I had the northbridge up to 1.55 volts just run the RAM (vs 1.45 for two sticks and a 400 MHz FSB), and my system refused to POST with 1.6v. Not having my CPU at 3.2 GHz (with either an 8 or 9 multiplier) is unacceptable, so I've sent the four sticks I had back to Newegg and ordered 2x2GB G.Skill sticks, which should allow me to keep my 400 MHz OC at 1.45v or 1.5v.
Oh, if anyone wants to some 2x1GB Dominator 8500 C5 cheap, check Newegg at the end of next week - they'll have a couple of open box items to sale.