My 667 memory arrived today from Newegg and I only have a short window to return w/o a restocking fee and on their dime (I told them I may have ordered the wrong speed and I'm a long-standing customer.. first RMA).
I hope someone can answer this soon. Keep the 667 (which was actually $5 more a set) or return it and order 800?
Theoretically, the 800MHZ at those timings are faster. But I doubt you'll notice any difference. I'd keep what you have. I used to have an Asus 650i board that gave me an occasional BSOD whenever I populated all 4 slots with the fastest RAM (800MHZ) it was designed for. I had to use 667MHZ to make it happy.
Cool!.. Thank you very much for your answer! Yup.. I figured it was something like 3X4 = 2X6 type of thing and it all evened out in the end. I'll keep the 667.. and besides.. I now have 2X2 GB Crucial sticks I can use as spares. I appreciate your attention sir.