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Overclocked 2500k @ 4.8 Ghz - What are safe 24/7 Temps? - Page 4

post #31 of 35
Thread Starter 
Quote:
Originally Posted by samwiches View Post

You're basically jerking off with IBT (Linpack). 12hrs Prime blend does not let through processors that fail under ~30mins Linpack.
And the Linpack power draw is meaningless. It does not stress your chip any more then Prime, it simply draws more voltage until the heat knocks out your OC (heat that your software/games/OS will never make on it's own).
Even overnight runs of Prime95 that peak at 75C mean very little if you're wondering about safe temps for 24/7 use. Here's an idea: use your computer for a week without rebooting, check peak temp and there you will have your 24/7 temp to ask about.

Correct me if I'm wrong, but is what your saying that I should just try and use the computer for several days doing things I usually do (gaming, browsing, watching videos, etc) and see if the computer craps out from the overclock from overheating? I know Prime95 and IBT are basically extreme stress tests that never give a realistic depiction of typical temperatures.
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post #32 of 35
Quote:
Originally Posted by HydrogenHuman View Post

Correct me if I'm wrong, but is what your saying that I should just try and use the computer for several days doing things I usually do (gaming, browsing, watching videos, etc) and see if the computer craps out from the overclock from overheating? I know Prime95 and IBT are basically extreme stress tests that never give a realistic depiction of typical temperatures.

Not exactly. Normal use isn't going to test your minimum stability. I only suggest that plan to see about the temperatures of an OC that you have already stress tested under Prime/IBT---where you might see very high temps that make you worry about whether you OC/voltage is safe. It may look dangerous to see high temps like that over the course of a day straight full of stress testing, but the stability outcome is what you should be concerned about, then see how the clocks and voltage you've chosen affect your temps under normal use, and be concerned with that.
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post #33 of 35
Thread Starter 
Quote:
Originally Posted by samwiches View Post

Not exactly. Normal use isn't going to test your minimum stability. I only suggest that plan to see about the temperatures of an OC that you have already stress tested under Prime/IBT---where you might see very high temps that make you worry about whether you OC/voltage is safe. It may look dangerous to see high temps like that over the course of a day straight full of stress testing, but the stability outcome is what you should be concerned about, then see how the clocks and voltage you've chosen affect your temps under normal use, and be concerned with that.

My voltage is actually fairly low right now, (I believe it goes to 1.324 or 1.332) at least, according to some of the voltages I've read about with overclocking. That is why I was concerned about my temps because they seemed too high for the voltage level I have. I'm actually curious samwiches, how did you manage to OC your Sandy to 4.9 Ghz with 1.33? What are you temperatures? I have a Z77 AsRock professional board, that is meant to overclock like crazy.
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post #34 of 35
Stay under 80C if planning on keeping cpu for 12 month or so, if planning on keeping for several years try keep it under 75C.
post #35 of 35
Quote:
Originally Posted by HydrogenHuman View Post

My voltage is actually fairly low right now, (I believe it goes to 1.324 or 1.332) at least, according to some of the voltages I've read about with overclocking. That is why I was concerned about my temps because they seemed too high for the voltage level I have. I'm actually curious samwiches, how did you manage to OC your Sandy to 4.9 Ghz with 1.33? What are you temperatures? I have a Z77 AsRock professional board, that is meant to overclock like crazy.

Often, the case with Sandy Bridge CPUs is that the lower VID parts, the ones that will clock on lower voltages, are actually leakier, so they produce more heat at lower voltages and the ones that require more volts leak less so they're cooler at lower voltages; but it normally happens that at the same speeds the temperatures are about the same for the majority; due to the difference in the energy leakage. That said, compared to where most people would be at 4.8GHz on air, you are doing very well! thumb.gif
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