Quote Originally Posted by aledsav1 View Post
OK...i am unable to overclock on p5b like i was on p5w due to not being able to keep my memory near its rated speed, when ever i increase my fsb the speed options for my memory increase, so i push my fsb to 460 and the lowest i can run my memory is 900+....my memory is 800 on p5w i was able to push fsb 460 and lower my memory to 667.....so far this board isn't allowing me to oc very well....please someone tell me theres something im missing.
Sounds like your P5W was actually letting you run your Ram at speeds lower than the FSB. (??) Either that or the options were just reading as 533, 667, 800 always when in reality they were higher. On your P5W, did CPU-Z's memory tab really display a FSB-to-DRAM ratio like 5:4 or something? I'm not familiar with that board.

In any case, decent PC2-6400 C4 RAM can push 900MHz with relaxed timings. Are you willing to drop to CL5 and up your voltage? Might help. I hope I'm not spouting off the obvious. Best of luck.

Quote Originally Posted by aledsav1 View Post
Maybe im a bit confused my memory speed is 800 when i push my fsb up my bios shows (from what i think im reading) my options of runing my mem speed close to its rated speed disappear it looks like say 440fsb means memory at 850+ etc
AFAIK, the lowest RAM speed you can do at 440fsb with this board is 880 using a 1:1 ratio.