E6600 overclocking Help!!

WingZero30 · 18 Jun 2010 at 21:24

Hi guys

I posted before on this issue but would like some more help please. Basically I am overclocking E6600 on Gigabyte ep45 ud3lr. I managed to overclock E6600 to 3.0GHz on stock voltage 1.3250V (VID) and it ran small FFTs in SP2004 Orthos perfectly. However I wanted to overclock more to 3.4GHz so this is currently what I get:

- [email protected] (346MHz X 9) CPU Vcore = 1.33750V (stable value)
- [email protected] (356MHz X 9) CPU Vcore = 1.35625V (stable value)
- [email protected] (367MHz X 9) CPU Vcore = 1.39375V (currently not stable)

It seems I am facing law of diminishing returns where for a constant FSB increase of 10-11 MHz I am inputting more voltage

. The CPu Vcore increases in increments of 0.00625V. So my next value is going to 1.39375+0.00625V = 1.40V.
If E6600@ 3.30GHz passes 30mins Orthos test at 1.40V it would seem quite a lot for 3.30GHz. I have a feeling that to reach 3.4GHz I could end up increasing CPU Vcore to 1.48V.
I have checked intel website and VID range seems to be 0.8500-1.5V. This means I could end up getting dangerously close to max value. Also during overclocking I had mobo power saving feature on. Would this have any effect on the CPU voltage consumption or should I disable it? Also do I need to increase any other voltage? How are people able to reach 3.6GHz and beyond on this CPU and my mobo is supposed to be a good overclocker. So I would really appreciate advice please. Thanks.

snaggster · 18 Jun 2010 at 21:47

sure your not think of the q6600? I never got my e6600 past 3.2ghz, Did manage once to boot windows and run 3dmark06 @3.7ghz but failed the very first ibt run.

Rroff · 18 Jun 2010 at 21:52

Your going to need more than 1.4v for around 3.3+gig stable - once you hit around 3.3-3.4gig ish it takes a massive push on the vcore for every extra 100MHz stable.

As an example for 3.825gig (water cooled) I had to run at 1.65 (I don't reccomend running above 1.45v for normal use if you can't afford to replace CPU) - tho mine was running 24x7 practically flatout for 2 years @ 1.65 and didn't die and still working fine in my media PC.

snaggster · 18 Jun 2010 at 21:59

1.65v.....Rroff man your nuts lol. But your right never go past 1.45v, though they can proberly take 1.5v quite easly..

WingZero30 · 18 Jun 2010 at 22:15

Thanks guys for your very helpful insight. Rroff How did you manage to get your E6600 to 3.825GHz when taking into account the motherboard. Looking at the manual my P45 which is the later version, it states 1600MHz FSb max (quadpumped). This means my motherboard can only support up to 400MHz FSB max resulting in 3.6Ghz. So how did you get past 3.6Ghz. I thought by doing so you would end up damaging your mobo?

Rroff · 18 Jun 2010 at 22:21

snaggster said:
1.65v.....Rroff man your nuts lol. But your right never go past 1.45v, though they can proberly take 1.5v quite easly..

Was a spare CPU - first E6600 I bought thought I'd killed it so bought another one and turned out it was the motherboard that was dead. Turns out killing an E6600 is actually pretty hard.

WingZero30 said:
Thanks guys for your very helpful insight. Rroff How did you manage to get your E6600 to 3.825GHz when taking into account the motherboard. Looking at the manual my P45 which is the later version, it states 1600MHz FSb max (quadpumped). This means my motherboard can only support up to 400MHz FSB max resulting in 3.6Ghz. So how did you get past 3.6Ghz. I thought by doing so you would end up damaging your mobo?

When overclocking the FSB will go beyond the board rated - some P45 board will hit 600MHz (2400MHz Quadpumped) - the board I was running it on was a Gigabyte P35 that was good for upto 515MHz with a 9x multi dual core.

WingZero30 · 18 Jun 2010 at 22:39

Rroff said:
When overclocking the FSB will go beyond the board rated - some P45 board will hit 600MHz (2400MHz Quadpumped) - the board I was running it on was a Gigabyte P35 that was good for upto 515MHz with a 9x multi dual core.

Thanks again for very useful post

. Would the board happen to be Gigabyte P35-DS3? Also should I go back to 3.2 GHz and just up the VCore by one notch to be on the safe side in terms of stability. Would I notice much difference in the performance of game such as Crysis between 3.2GHz and 3.4GHz?