Help with first overclocking adventure - E8600

[AlexTrickle]

I'm running the following setup:

Intel E8600 (Corsair H50 cooling)
Asus Rampage Formula X48
4GB (2x2GB) GeIL Black Dragon DDR2 PC6400
W7 Home Premium 64bit


I have been reading/following various guides and also I know that an E8600 should, with decent cooling, easily hit 4.5Ghz - however I am failing to get higher than 4.05Ghz atm.

I can get Prim95 stable at 4.05Ghz:

CPU-Z Details (will try and upload images later)

Core Speed: 4049.7Mhz
FSB: 405
Multiplier: 10x
Rated FSB: 1620Mhz
Core Voltage: 1.240V

Core Temp (100% Load):

Core#0 - 47
Core#1 - 47

Core Temp say VID: 1.2500V - why is this different to CPU-Z?


I tried setting the FSB to 420 and consequently 410 but neither managed to get to desktop with windows crashing both times during startup and one resulting in BSOD.

I currently have the CPU Voltage set to auto in the BIOS because I am not entirely sure what voltage I should be setting - I know an E8600 should be able to hit 4.2 right?

Any help would be greatly appreciated as the Rampage Formula's BIOS is fairly extensive and complicated!

Thanks!

 

[snake247]

hi try uping cpu voltage to 1.35.

 

[JonJ678]

What's the ram capable of? It's rated up to 400fsb. If you lower the cpu clock considerably and play about with the memory multipliers you should be able to gauge how fast it's able to run, you're hoping for 900mhz if you're after 4.5 ghz.

I think you're optimistic with this estimate though, it's a good e8600 under good cooling that makes it that high, I'd have thought the "easy" limit to be around 4.2. On the bright side the H50 is more than capable of dealing with the dual core, that was a good choice.

 

[bifday2k]

His GeIL Black Dragon's should easily handle 900mhz, he just might have to slacken the memory timings abit.