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Will lower load temps = a more stable OC?

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a b K Overclocking
September 1, 2011 5:10:58 PM

Do core temps effect oc stability?

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a c 239 K Overclocking
September 1, 2011 5:56:05 PM

Quote:
Will lower load temps = a more stable OC?

Do core temps effect oc stability?


In some overclock situations yes, in others no.

It really depends on just how far the overclock is being pushed to, you can have high temps and still have a stable overclock.

Lower temps would naturally tend to give longevity hardware wise.

Do you want to get more specific as to platform and levels of overclock?

It has a lot to do with staying within a certain thermal envelope, that each overclocked CPU has it's own levels of limitations, a slight overclock may keep you within the thermal envelope, and no instability occurs.

So it doesn't matter under those circumstances if you keep it cooler, because you have not breached the thermal envelope of the CPU.

If you are after a maximum overclock, temps become very important in relation to stability, and just how far you'll get with the overclock.
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a b K Overclocking
September 1, 2011 7:37:16 PM

i5 2500k running 4.5GHz @ ~1.328V and about 71'C at 100% load
P8P67 WS Revolution mobo
2 x 4 GB G.Skill DDR3 1600 F3-12800CL9D-8GBXL
Xigmatek Gaia sd1283 air cooler (I know, I am regretting this one)
HAF X case with stock fans (140mm rear, 200mm side and top, 230mm front)
Power Color Radeon HD6950 (with plans to Xfire)

I run Prime95 Blend tests for 10 hours before bsod and FFT small for 8 hours before bsod.

If I try to increase voltage, I go into ~75'C at 100% load.

I am looking for a way to stabilize the 4.5MHz.

Bios settings are pretty much the same as here:

http://forums.overclockersclub.com/index.php?showtopic=...

With these exceptions:

Multiplier is set to 45 (obviously lol)
LLC is set to High
CPU Offset Voltage is 0.025V
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Related resources
September 1, 2011 8:39:00 PM

Thats easy get a better aircooler. Something like the hyper 212 with 2 fans or the noctura d14
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a b K Overclocking
September 1, 2011 9:03:28 PM

Yeah a cooler upgrade is in the works.

I just kind of wanted to know if an OC can become more stable by upgrading cooling alone, without adjusting voltage.

Or, on the flip side, if you raise voltage to gain stability which raises temps, do the higher temps then detract from any stability gained from the voltage increase (basically making you use a bigger and bigger change in voltage to get the same amount of stability)? I guess this would be considered diminishing returns if it is the case.

I am trying to understand how changes in voltage relate to changes in temp and general stability.

I hope that I am asking the question properly.
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a b K Overclocking
September 1, 2011 9:12:50 PM

vollman1 said:
i5 2500k running 4.5MHz @ ~1.328V and about 71'C at 100% load
P8P67 WS Revolution mobo
2 x 4 MB G.Skill DDR3 1600 F3-12800CL9D-8GBXL
Xigmatek Gaia sd1283 air cooler (I know, I am regretting this one)
HAF X case with stock fans (140mm rear, 200mm side and top, 230mm front)
Power Color Radeon HD6950 (with plans to Xfire)

I run Prime95 Blend tests for 10 hours before bsod and FFT small for 8 hours before bsod.

If I try to increase voltage, I go into ~75'C at 100% load.

I am looking for a way to stabilize the 4.5MHz.

Bios settings are pretty much the same as here:

http://forums.overclockersclub.com/index.php?showtopic=...

With these exceptions:

Multiplier is set to 45 (obviously lol)
LLC is set to High
CPU Offset Voltage is 0.025V


I am hoping that you mean 4.5 GHz not 4.5MHz for the CPU. Have you looked at the max temps that your processor can have on intel's website?
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a b K Overclocking
September 1, 2011 9:17:57 PM

LOL! Yeah I am a professional underclocker in disguise :p 

Change made above hehe
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a b K Overclocking
September 1, 2011 9:22:29 PM

Everything that I have read so far has said 80'C max. I will double check the Intel site to be sure.

But I have read also that staying below 70'C was a good target for longevity, preferably ~65'C.
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a b K Overclocking
September 1, 2011 10:17:55 PM

Does the Intel site even list the max temp? I can only find Tcase is 72.6'C.

80'C is estimated as the point at which cpu throttling occurs and the TjMax is estimated at 98'C-100'C from what I have been able to find on forums.

My plan has been to try to get 4.5GHz under 70'C, on the advice of others on these forums.
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a b K Overclocking
September 3, 2011 12:11:14 AM

Best answer selected by vollman1.
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