Ratio question 1:1 or 5:4

[2800CC]

Hi all,

I plan to OC my 3Ghz to 3225 by running the FSB at 215.
I have PC3200 Corsair C2 2X512MB which I have seen in some reviews hit 230 at 2.8v

Is there any reason why I shouldn't be able to run the ratio at 1:1
I have heard the mobo sometimes forces the ratio to 5:4
I am going to run it all on an ASUS P4C800 875

Should there be a reason why the ratio won't hold at 1:1 with my components ??

Cheers all

[shredisn@tdead]

My P4P800 has a BIOS option called "DRAM Frequency" that is set to Auto by default, which I guess will be the same in your P4C800.

You need to change this to 400 to keep the memory running at 1:1 otherwise, as you say, it'll decide to switch it to 5:4 (333) or even 3:2 (266).

[blockers]

Make sure you get it running in 1:1 as you will see a performace drop at 5:4, as one will have to wait for the other.

Also, as its corsair im sure itll be fine going fast

Will

[Ethos]

Just try it, if it doesnt boot hit insert whilst turning it on, or reset cmos! Then up the ram voltage a bit, if it still doesnt work slacken the timings etc.. etc..