I'm going to stability test with IntelBurnTest, but I know that it really loads your cores well and can jack your temperatures way up. My question is, is there a point where I should cancel the test if the temperatures look too high to be safe? Or can an E8400 run at 80 or 90 degrees if only for a handful of minutes?
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"Safe" temps for IntelBurnTest with E8400
- Thread starter vexion
- Start date
BillParrish
Supreme [H]ardness
- Joined
- Aug 25, 2006
- Messages
- 7,519
Per Intel:
At right around 100C (delta to Tjmax = 0) the cpu will put out an interupt to the motherboard fan control circuitry that basically means " I am HOT, spin the fans up to 100% please !!! Now !!! " Several undocumented deg above that, some information suggests 10-15C above 100C value, the CPU will shut itself down.
A comment from me.
Intel burn test is a thermal test - almost nothing will get the cpu hotter - its for testing your heatsink and thermals mainly, not for stability. It is unlikely anything you do during "real life" will get the cpu as hot and so it is a great "worst case" test for your heatsink etc.
Prime is a load test that will most certainly warm up the CPU in a big way but it is mainly a stability test to assure proper cpu functional operation at heavy load by doing complex math calculations.
Neither test puts the video system, and in particular the MCH/Northbridge communication with the video card under high stress.
At right around 100C (delta to Tjmax = 0) the cpu will put out an interupt to the motherboard fan control circuitry that basically means " I am HOT, spin the fans up to 100% please !!! Now !!! " Several undocumented deg above that, some information suggests 10-15C above 100C value, the CPU will shut itself down.
A comment from me.
Intel burn test is a thermal test - almost nothing will get the cpu hotter - its for testing your heatsink and thermals mainly, not for stability. It is unlikely anything you do during "real life" will get the cpu as hot and so it is a great "worst case" test for your heatsink etc.
Prime is a load test that will most certainly warm up the CPU in a big way but it is mainly a stability test to assure proper cpu functional operation at heavy load by doing complex math calculations.
Neither test puts the video system, and in particular the MCH/Northbridge communication with the video card under high stress.
Per Intel:
At right around 100C (delta to Tjmax = 0) the cpu will put out an interupt to the motherboard fan control circuitry that basically means " I am HOT, spin the fans up to 100% please !!! Now !!! " Several undocumented deg above that, some information suggests 10-15C above 100C value, the CPU will shut itself down.
A comment from me.
Intel burn test is a thermal test - almost nothing will get the cpu hotter - its for testing your heatsink and thermals mainly, not for stability. It is unlikely anything you do during "real life" will get the cpu as hot and so it is a great "worst case" test for your heatsink etc.
IBT also does a pretty good job of testing the reliability of an overclock, in the sense that it will notify you very quickly if the CPU is making calculation errors.
Also, once the CPU hits Tjmax, it will actually throttle down to its lowest multiplier before shutting down.