- Nov 26, 2005
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Are there any stability tests that do not heat up the CPU?
Are there any stability tests that do not heat up the CPU?
As CPU's become hotter they require more voltage to be stable, if you don't heat up a CPU during a stress test the information gained from that test is useless unless you can guarantee the CPU will never run over that temp during its lifetime.
Why are you even looking for this type of stress test?
The only way somewhat useful is what The Stilt recommended when stressing FX chips:
As the power consumption output of stress testing programs becomes to much for the socket infraestructure (on FX at least) or the temps become to high for the the CPU itself (on recent Intel i5-i7 HEDT Core line), the best way to stress test is to disable cores and run stress testing with reduced cooling capacity (to somewhat replicate the actual heat output of the otherwise fully enabled CPU) for prolongued periods of time. This actually takes at least as x2 much time as the normal method would take, but it is useful as it will paint a better picture.
For example: Prime95 made my FX scream with both core and socket temps but it was "stable", but then on real world renderers I always needed +0.015 to 0.025V to make my CPU fully stable. This is why I recommend to always test with both an stress tester and a real world workload (obviously strenous enough on the CPU).
Stress testing software is usually more of a "thermal/power consumption checker" than an stability measure on itself, because of the tendency to repeat specific workloads under particular instruction sets. Real workloads are more of a mixed bag and usually what was stable on a stress tester (that even made your CPU produce more heat/consume more power!) can or cannot be sable on the former. I would also recommend doing real workloads you are accostumed to do on your PC (but if gaming is your 1# activity I would really check a x264 encoder soft or a renderer to act as your real world stress testing software, they are really rough for the CPUs!)
Stress testing done right takes a while, there is no shortcuts here, but the endgame is worth it, specially if you are of the tinker type (I would consider anyone going for a X5690 at this point to fall under this category). GL :biggrin:
x264 stability test. I have had overclocks which passed 100-passes of Intel Burn Test + a couple of hours of Prime95 (SSE2 version), but failed the x264 test.
This correlated with those overclocks BSODing during Handbrake encodes.
Does not raise core temps nearly as much as either IBT or P95 :
http://www.overclock.net/t/1487922/going-deeper-on-the-x264-v2-stress-test
Not really, but I wrote a program that will heat up your CPU without testing for stability. I'll bet you're dying to try it, too!
x264 stability test. I have had overclocks which passed 100-passes of Intel Burn Test + a couple of hours of Prime95 (SSE2 version), but failed the x264 test.
This correlated with those overclocks BSODing during Handbrake encodes.
Does not raise core temps nearly as much as either IBT or P95 :
http://www.overclock.net/t/1487922/going-deeper-on-the-x264-v2-stress-test
Now you can test using a Handbrake nightly build and x265. x265 algorithms are way more computationally complex than x264. Encoding will use AVX2 heavily if your CPU supports it. Takes forever, though, so use a short AVC video clip if you're just testing for stability.x264 stability test. I have had overclocks which passed 100-passes of Intel Burn Test + a couple of hours of Prime95 (SSE2 version), but failed the x264 test.
This correlated with those overclocks BSODing during Handbrake encodes.
Does not raise core temps nearly as much as either IBT or P95 :
http://www.overclock.net/t/1487922/going-deeper-on-the-x264-v2-stress-test
Any link to the latest nightly build, also does it support quicksync for hardware acceleration atm ?Now you can test using a Handbrake nightly build and x265. x265 algorithms are way more computationally complex than x264. Encoding will use AVX2 heavily if your CPU supports it. Takes forever, though, so use a short AVC video clip if you're just testing for stability.