P4 2.8C@3.2Ghz need help with Ram >

[Nighthawk168]

Hey Guys,

ASUS P4C800 Deluxe
Corsair XMS PC-3500 2x256mb
P4 2.8Ghz -FSB @ 230 =3.2Ghz

I turned my Memory clock down to 320MHz (DDR=640MHz?)

How much will i have to overclock the FSB to get the memory to run at 400MHz (while it is set at 320)
Is this called 5:4> and is there any easy formula for figuring this out?

ie., 800-640=160 ...160/2=80 ...so 200FSB+80 = 800MHz DDR?
Thanks

P.S. PNY Geforce FX 5600 Ultra OC'd 422Mhz core/844Mhz memory

 

[Corporate Thug]

no no

your memory @ 320 is actually in DDR. the actual clock speed will be 320/2 = 160. thus, 400 mhz would just be 200 mhz for the memory

btw, 800 mhz fsb is 200 mhz quad pumped to 800 mhz

 

[Wook]

In the bios of your Asus P4c800dl check the dram timings:

266 = 3:2 devider
320 = 5:4 devider
400 = 1:1 devider

Devides cpu:ram clockrates.