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post #41 of 92
Quote:
Originally Posted by ChickenInferno View Post
Okay to clear up a few things before a bunch of speculation takes place. The thermal specs you just posted are for the center of the IHS and not the cores themselves. Their is a temperature gradient that goes through the cores and into the IHS itself, which means that if the IHS can be a maximum of 72C, then the cores could be around 90C before you would even reach the Thermal Spec. In all reality, this is before the fail safe system kicks on a reduces clock cycles. The silicone really needs to be at about 120C before you do real irrepairable damage. Read the sticky in my sig for more info.

Temps during stress testing are just that...only found during stress testing. However, lower temperatures allow for more overclocking which is why we like to keep them lower.
This is true, but the temps posted so far (except for chemicalfan's temps which he specified was on 1 core) are only 1 number and not 4, leading me to believe that people are simply taking the temperature at the IHS. Thanks for clearing that up, though.
post #42 of 92
Quote:
Originally Posted by decimate View Post
This is true, but the temps posted so far (except for chemicalfan's temps which he specified was on 1 core) are only 1 number and not 4, leading me to believe that people are simply taking the temperature at the IHS. Thanks for clearing that up, though.
More than likely they are just posting the average core temp as ussually they are very similar (I have three cores that almost always read identical and one hot core). If they were taking temp readings off of their IHS, then they indeed have a huge problem.
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post #43 of 92
Thread Starter 
thanks chicken inferno. Although, Lynfield reacts terribly to heat unlike Bloomfield. Once it goes 80+ it seems to lose stability.




edit:

I am installing GTA IV for some benchmarking, results in a hour or so.
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post #44 of 92
Quote:
Originally Posted by ChickenInferno View Post
Okay to clear up a few things before a bunch of speculation takes place. The thermal specs you just posted are for the center of the IHS and not the cores themselves. Their is a temperature gradient that goes through the cores and into the IHS itself, which means that if the IHS can be a maximum of 72C, then the cores could be around 90C before you would even reach the Thermal Spec. In all reality, this is before the fail safe system kicks on a reduces clock cycles. The silicone really needs to be at about 120C before you do real irrepairable damage. Read the sticky in my sig for more info.

Temps during stress testing are just that...only found during stress testing. However, lower temperatures allow for more overclocking which is why we like to keep them lower.
Thanks very much for your info, it makes a lot of sense! Just for a bit of clarification, my quote of 73C was on a single core, but occurs during OCCT, and also whilst playing Mass Effect for a while (had CoreTemp logging in the background). Funnily enough, while 1 core hits 73C at its peak, the coolest core only hits 66C!

I plan to run this 24/7 - I presume from your info that it won't be a problem in terms of stability and longevity of CPU?
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post #45 of 92
Thread Starter 
GTA IV benchmark:

settings

1680x1050 (60Hz)

Texture Quality: Medium
Render Quality: High

View dist. 25
Detail dist. 37.
Vehicle dens. 26
Shadow dens. 3



System Config:HD 4770, X3440 @ 3.3 GHz.



Average FPS: 47.69
CPU usage 21%..
Memory Usage: 54 Percent with 4GB of RAM
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post #46 of 92
how are things going so far?

did you get your chip stable?

I had to reinstall windows so i'm back at square one.

I thinkin im going to try to get up to

3.8ghz

with my settings from my other post im pretty sure ill have them stable.

But what i have notice is that with a clock of 3.8ghz + the ram clocks needs to be adjusted. But I'm still very new at messing with ram timing.

Can anyone chime in?
Edited by lilraver018 - 1/2/10 at 6:39pm
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post #47 of 92
Thread Starter 
I need better cooling before I can overclock past 3.6.

I don't think you need to change the timings unless the RAM is really an issue. I'd settle for a lower clock for simplicity.
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post #48 of 92
im pretty sure the ram for me is a problem, my ram runs stock at 1600 and i can get it to boot up into windows below 3.8ghz but when i get into a clock above 3.8 i set my timeing to 10 and get a 2000 memory speed and im able to load windows.

So you might want to remember that.

But i will keep you informed once i get going again.
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post #49 of 92
Quote:
Originally Posted by FSF-Foxhound View Post
thanks chicken inferno. Although, Lynfield reacts terribly to heat unlike Bloomfield. Once it goes 80+ it seems to lose stability.
hmm. Interesting to know that the temperature wall is that much different from i5 to i7. I've found on mine that above 4.42(210*21) that if my temps are above 74C, it becomes almost impossible to stabilize, but that is a very high clock to find the temperature wall.


Quote:
Originally Posted by chemicalfan View Post
Thanks very much for your info, it makes a lot of sense! Just for a bit of clarification, my quote of 73C was on a single core, but occurs during OCCT, and also whilst playing Mass Effect for a while (had CoreTemp logging in the background). Funnily enough, while 1 core hits 73C at its peak, the coolest core only hits 66C!

I plan to run this 24/7 - I presume from your info that it won't be a problem in terms of stability and longevity of CPU?
As long as the voltages are set correctly and it runs all of the stability tests and passes, then you are absolutely fine with that overclock.
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post #50 of 92
Quote:
Originally Posted by FSF-Foxhound View Post
I need better cooling before I can overclock past 3.6.

I don't think you need to change the timings unless the RAM is really an issue. I'd settle for a lower clock for simplicity.
What cooler were you using before?

and would you suggest a Xeon 3450 over an i5?
I can't seem to decide. this will be for my first build.
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