2.4A P4 (400mhzFSB) how do I up the FSB? help?

[FoeHammer]

Okay so I got my rig built and want to just up the FSB becuase I have 2 gigs of Corsair TwinX matched pair RAM and would like it to be fully utilized. From what I've been reading I need to change the FSB in the BIOS, but then I'm getting nervous and confused about voltages and such...I just want to up my FSB so my RAM will run at 400mhz, instead of 266mhz which I believe that is waht it is running at now...I'm new to all this so any help would be great... Here's My specs:

2.4ghz p4
2 gigs of Corsair XMS Twinx1024x3200LL(matched Pair)DDR400
Asus P4C800D (i875 Canterwood)
2 WD360 Raptors SATA
Geforce 4 TI 4600 (albatron medusa w/thermaltake fan and tin coated copper ram sinks)
420w Thermaltake Silent Pure Power w/ PFC
Zalman CNPS-7000 w/ fanmate controller
Audigy 2
Plextor 504A DVD/CD burner
Xaser III v2000a Thermaltake Aluminium Case

 

[Chumpman]

I'm a bit confused, do you want to up your RAM speed or your CPU speed and RAM speed?If you up the FSB from it's current 133 position, you will move the processor up 18 MHz for every one FSB MHz. You might just want to change the RAM divider if you are looking to change the RAM from 133 to 200. You aren't going to be able to get it up to 200 just by changing the ratio, as the highest you will be able to go (before bumping up the actual FSB) will be 166 MHz.

 

[bgeh]

Originally posted by: Chumpman
I'm a bit confused, do you want to up your RAM speed or your CPU speed and RAM speed?If you up the FSB from it's current 133 position, you will move the processor up 18 MHz for every one FSB MHz. You might just want to change the RAM divider if you are looking to change the RAM from 133 to 200. You aren't going to be able to get it up to 200 just by changing the ratio, as the highest you will be able to go (before bumping up the actual FSB) will be 166 MHz.

actually since he has a 2.4A, then the multiplier is 24x100=2.4GHz
so for every 1MHz FSB, the actual clock speed increases by 24

 

[FoeHammer]

Yes I just want to up the FSB to 200mhz so MY ram will run at 400mhz. I will eventually overclock my cpu a bit but im fine with it atm. Now IS the RAM divider setting in the BIOS? HOw would I change that or in the BIOS what would that setting be called? If I did want to overclock the CPU and the FSB In the BIOS I know where to set the CPU ratio, but will increase that increase the FSB autmatically? Thanks for clearing this up a bit.