i have to admit, i still don't understand memory timing, even after reading the sticky! i'm slow, i know.
i don't know how dividers, CAS, FSB and memory speed all fit together.
is there a good howto that anyone knows about?
So take my 800mhz memory and set it to 333 in bios ?
Well no, not exactly...
When you are running a 1066FSB the ram will run 1:1 when it is set to 333in bios (667MHZ).
I really couldn’t say if the ram will be faster set to 400 in bios (800MHZ)... I have never seen any bench marks on this. In my mind running memory over 333(667) on a 1066FSB is pointless as the ram will be waiting on the FSB for information.
I have always reduced my ram to match FSB 1:1 and tightened the timings... so instead of say 5-5-5-5 at 400(800mhz) perhaps the memory can run 1:1 to FSB1066 with 333(667mhz) 4-4-4-4
You are fine leaving the memory @ 800… in my opinion (I have nothing to back this up) 667 with tighter timings on a 1066FSB is faster.