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post #41 of 49
Hmm... Does putting two crossfire bridges on only two cards help/hurt anything?
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post #42 of 49
Thread Starter 
Any comment on my temps? 70c under full load?
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post #43 of 49
Quote:
Originally Posted by porky;15177259 
Any comment on my temps? 70c under full load?

pretty good for stability testing and still pretty good for general usage.

Have a little read at the Sandy Stable Clu OP, **Max safe voltage and temps*** section when you scroll down.
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post #44 of 49
Quote:
Originally Posted by porky;15177259 
Any comment on my temps? 70c under full load?

Nice V8 wink.gif. Do you know your ambient temperature?
post #45 of 49
Thread Starter 
about 25c ambient...im in a hot room...with aircon on it doesent go above 62c full load small ffts
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post #46 of 49
Quote:
Originally Posted by porky;15179796 
about 25c ambient...im in a hot room...with aircon on it doesent go above 62c full load small ffts

Sounds good. biggrin.gif
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post #47 of 49
Just so we're being clear here, the maximum safe temperature to run the processor is less than 72.69°C. Whether you're comfortable with that is up to you, but there is no proof that any increase in temperature that lies below the thermal max will cause harm to your processor. Granted, I like to keep my chip cooler than 65°C max, which is solely as personal preference to gain a personal sense of accomplishment when overclocking my chip.

Most of the people who give a subjective temperature and claim that it causes a shorter/longer lifespan [calculable MTBF] have not used the proper testing to determine such. However, heat can cause instability on an overclock, simply due to heating the surrounding PCB and generating more hot air in the case. Source: Industrial Engineering. During graduate school, we frequently tested products (mainly manufacturing equipment) running at different temperatures to test failure rate. Once we have a 99.99999% accurate thermal requirement, we say that anything below that temperature is within operating standards.
Edited by greydor - 10/4/11 at 4:10pm
post #48 of 49
Well, to answer your original question, Intel's Tcase for the CPU is 72.6C - http://ark.intel.com/products/52210

However, the previous generation's i7's (i7 920 - i7 960), Intel's Tcase for the CPU is 67.9C, but I had my i7 950 during load max up to 75C for a few years and it had no problems. I know a few people that have their i7 920's get to 85C during load and they never had issues.

It really depends on what you think is safe temps for your system and what you're comfortable with. The hotter the temps and voltages, you increase the risk in damaging something.
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post #49 of 49
I just posted this in another thread tongue.gif


Take it as you will, this is my opinion:
Warning: Spoiler! (Click to show)

****Max Safe Voltage and Temps****


Before I go into this, I just want to say that this is my OWN opinion and take it as you will.

No one is absolutely certain of what the safe vcore is for the sandybridge chips. What I can tell you is that many say the max safe vcore for these chips are 1.3 region, however, intel states that the max 'VID' is 1.52 and many say that around 1.4 if your on air and 1.45 should be the max if your running water cooling. Personally I will not go above 1.5v for 24/7 with these chip but that is totally upto you. The main thing to understand is that 'YOU' have to come up with the conclusion of what the max is. That way no one is blamed if the chip degrades (none reported so far, even with so called 'high 1.4+ vcore')

Those that have killed or degraded their cpu's have done so through either by their own fault, running sucide runs with crazy voltages and by not having substantial cooling for their overclocks and voltage or for reasons like their mobo or PSU causing shorting and also BIOS bugs.

Please remember that not all chips are the same, some can do high overclocks with low voltage some cannot.

Regarding temps, CPU throttles at 95c, some say keeping it below 85c is good, some say keeping it below 80 is better, other's say below 75c is really good and there are quite a few that say 70c should be the max. Which ever one your comfortable with and if you have substantial cooling, YOU DECIDE YOUR MAX, just remember it throttles at 95c. If for example you hit 85c in stress testing then in everday usage it shouldn't be higher than 75c which I think is fine, I personally like to keep mine below 70/75c during general everyday usage biggrin.gif

smile.gif
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