E8400 max overclock?

coolamasta

coolamasta

coolamasta

Associate
Joined
9 Jan 2010
Posts
739
Location
Sunny Brizzol
Hey all just wondering if anyone knows to hand what the max sort of overclock is I can expect on an E8400 on Air? Its a C0 though so I know it will need a bit more voltage.

Its just an old one I have sat about fitted to a Asus P5K Premium and I just want to see what I can push it to really, I would have thought 4ghz would be ok? Anyone know roughly the voltage I would need for 4ghz?

Cheers :D
 
4Ghz should be achievable on the E8400 I believe, your best bet is to slowly up the FSB in increments of around 10 then loading the CPU with IBT to check stability keep going until unstable then up the vcore a notch till its stable again

I would also advise watching cpu temperature with core temp.
 
Yeah ideally that's what I would be doing mate but wanting to save some time by seeing what sort of voltages people are running on the C0 CPU then start a bit lower and Stress it.

I use 64-bit LinX instead of IBT, Prime95 is OK but wont push it as hard as LinX (should say now that I do a lot of Folding@Home so all my overclocked CPU's need to be 100% stable) Oh and I use HWmonitor for CPU temps which are normally around the same as CoreTemp from what ive seen :)
 
Cheers bud, yeah the P5K has OCZ PC6400 in it at the moment so think im going to aim for a solid/reliable 4ghz then :D

Maybe mine is an E0 actually not a C0, Hmmmm will fire up CPU-Z tomorrow and double check...
 
E8400 C0 steppings are not good overclockers, same as C0 E8500,,, you will need higher voltages almost on everything, 4ghz I think would be tricky to get,..
 
I've got mine at 4.3 on stock volts (1.30 in BIOS), but again that's an E0. Might try pushing it a bit further, but temps are around the 62 mark under load with IBT/LinX.
 
TK421 said:
hey gurusan!! are you running that e8400 24/7 at that speed on your sig? if so what voltage? what cooling?
Click to expand...

I am running 4680MHz for my 24/7 clock at the moment actually, with 1.408V.

It's not prime stable but it's game stable, I'm working out some kinks as I think it can be prime stable at this voltage...just messing with some skews and GTL refs.
 
gurusan said:
I am running 4680MHz for my 24/7 clock at the moment actually, with 1.408V.

It's not prime stable but it's game stable, I'm working out some kinks as I think it can be prime stable at this voltage...just messing with some skews and GTL refs.
Click to expand...

what is the max safe voltage for 24/7 with the EO? what cooling you got?
 
TK421 said:
what is the max safe voltage for 24/7 with the EO? what cooling you got?
Click to expand...

approximately 1.4ish...I am using a Scythe Mine rev. b. Only a small 100mm cooler, this chip is extremely cool running though as it has a superhigh VID of 1.2625V.
 
that's an E0....highest VID I've ever seen on a wolfy...doesn't seem to hold it back though. Temps are around 68C Priming
 
gurusan said:
that's an E0....highest VID I've ever seen on a wolfy...doesn't seem to hold it back though. Temps are around 68C Priming
Click to expand...

I know my sig says E6850! but i am running a e8400 EO with a VID of 1.1000 at present. waiting on a new m/b running ddr3 to arrive so that's why i am interested to see whats acheivable with air!
 
Who said C0's where bad overclockers? pish, below is done on cheapo water, so eqautes to top end air cooling.

vcore was that high as it was'nt tweaked was just a quick test, and thats the max fsb my memory will allow me to use. And the mate i bought it off, had it at 4.9ghz under phase, on less volts (better mobo, so he had it at like 1.45vcore), he was also memory limited.

SuperPi was there just to show it was'nt just screenshot stable.

E0's are generally a lot better, requiring less vcore, but don't discount the C0's, 4ghz should easily be had on both variants.

2r74uxk.jpg


Heres a 4ghz clock

ms0pib.jpg


My 24/7 clock is in my sig.
 
You must log in or register to reply here.
Back
Top Bottom