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Old February 15, 2009, 12:27 PM
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Default Q9650 temps at 3.6GHz

Q9650 at 3.6GHz, 400FSB, Redlines at DDR800 1:1 5-5-5-12 NB Strap 400, the rest is Auto.

idle core temps: 40, 35, 49, 40, system temp: 50
prime95 load core max temps: 72, 70, 77, 72 (average 68, 66, 73, 68), system temp 53

Case is not well ventilated, cooler is vendetta 2.

Are those temps good for long term use? I am scared of trying to run IBT.
At what temp Q9650 starts to throttle the cores?
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Old February 15, 2009, 12:36 PM
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I generally push my cpus beyond what most folks consider their comfort levels and running those kinds of #s 24/7 would make me very uncomfortable. IMO, I wouldn't push above 70c for anything other than a very short benchmark run.

My own personal limit (on both my Q6600 & my E8400) is 65c under full stess test load, and no higher than 60c 24/7 folding operations.

The real question though is if those kinds of temps are doing any real long-term damage to your chips, and I'm not sure anybody has the answer to that question. It's up to you if you want to be the Guinea pig. :)
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Old February 15, 2009, 01:25 PM
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Keep your distance to TJMax >20-30 and forget about temps.
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Old February 15, 2009, 06:22 PM
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I am getting 23 degrees distance to Tjmax on the hottest core and 28 degrees on the other 3 cores. All in prime95. In IBT it should be less :(
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Old February 18, 2009, 12:14 AM
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is that stock heat sink?
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Old February 18, 2009, 05:02 AM
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IBT will add 15C-20C to the temps you are already seeing so I would not run it. Time to back it down unless you like barbecued Q9650.

As for damage, keep it under 80C. Overly high Vcore does moew damage than temps. I routinely beat the crap out a QX6850/QX9650 for heatsink testing. They have both had to throttle themselves down due to running 100C+. I absolutely do not recommend anyone do this, but under 80C is safe enough.

Get a case. You can find a good airflow case for under $100 so there is no excuse. You spent all that $$$ on that hardware without budgeting for a good case?
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Old February 18, 2009, 05:12 AM
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Nowadays with thermal throttling, heat doesn't kill chips, voltages do.
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Old February 18, 2009, 07:21 AM
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Case is CoolerMaster 534+
Centurion 534 + Plus - Cooler Master
It is tidy and very quiet (120mm at 1000RPM). Well, I recon, I have to get exhaust fan 120m at 1600RPM, that should decrease temps under heavy load. Scythe S-Flex is quiet enough, right?
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Old February 18, 2009, 08:58 AM
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Hmmmmmm that Case is tight for AC'ing. Not the best setup for a hot Quad sitting inside.
It doesn't matter how efficent the CPU cooler is if the Case can't breathe.
I would suggest, if you can afford a new case, to get the Scythe 'Kama Bay' and stick that right in 3 of your free 5inch slots (if they aren't used).
That would put a Direct Airflow line to your CPU cooler which should in turn make your temps more managable.
My thoughts at least.


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Old February 18, 2009, 09:13 AM
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Yeah, that case needs some major modding to get proper airflow for an overclocked Quad. Quiet and air cooled Quad overclocking do not mix as well. Your choices are very limited and I would not use anything less than a 65CFM+ fan as a replacement. Again, turn down the clocks and voltages since there is little gain from 3.0GHz to 3.6Ghz. You will fry something. If you think that the CPU is hot, just image how hot the VRM area of the motherboard is as well.
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