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intel heat sinker olmost sinked the cpu

post #1 of 8
Thread Starter 
i was doing some cleanup i didnt pay attention to this bug

WARNING: Engineering Defect in Stock Intel Heatsink/Fan Unit

i mean i really did curse the engineers when i was plugging those dumb clips
but i thought it was my ignorance only but that page dose show what i suffered at the end i thought it was fixed so i powered up then
the system shot it self down few times i never knew why ? after that hopefully before its too late i went to bios to find the heat sink not attached to cpu. opps i guess it was ok the E8500 saved it self from my sabotage. but at what temp you guess the cpu shot it self down ? will it live long after this ?
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post #2 of 8
I think it will be just fine. These CPUs are much tougher than we give them credit for, and from what I've seen the experts say here on OCN, they are designed to do this before anything bad can happen.
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post #3 of 8
Quote:
Originally Posted by anas View Post

what temp you guess the cpu shot it self down ? will it live long after this ?

That C2D E8500 has a maximum Tcase of 72.4*C, so I'd say that's when it shut itself down.

I doubt that any ill effects would come of this, as that would defeat the point of having a pre-defined temperature shutdown point.

EDIT: According to Intel's specs on the C2D 8000-series, "In the event of a catastrophic cooling failure, the processor will automatically shut down when the silicon has reached a temperature approximately 20 °C above the maximum Tc."

As such, it should shut down @ ~90*C.
Edited by svenge - 6/8/13 at 4:37am
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post #4 of 8
thermal throttling occurs somewhere around 95c core temp (probably around 85c Tcase). in my experience, systems will continue to run in throttling mode (albeit very slow) unless the motherboard has a temperature shutoff point (very few do this by default), but it's anyones guess how long these CPU's will live at those temperatures.

The push pins do suck, but I think the majority of issues with them are improper installation (i.e. the pins not fully pushed in). Intel wouldn't use these if they didn't think they could stand up for at least 3 years of use, so I have my doubts whether this "chip creek" type of issue will occur. Maybe in CPU installations around 5 years old, possibly.
Edited by s74r1 - 6/8/13 at 4:38am
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post #5 of 8
The thermal throttling point is the Tj. Max. The Tj. Max for the E8400/E8500/E8600 is 95°C. The actual shut-off point is much higher, at around 130-140°C.

I didn't say this before because "130-140°C" sounds worse than it really is, especially when it's only for a couple of seconds. As he noticed, it saved itself from "sabotage".
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post #6 of 8
Thread Starter 
yes few seconds as the cpu/mb forced the shot down and did not throttle down the cpu as the heat sink was not in contact with the cpu but it was repeated for 3 or for times because i re powered the system not knowing why it was
shutting down ..... i took a look at bios cables bios battery i kept re powering not thinking its the heat sink as the fan
was running mostly i think now not because of the clips but my ignorance lol when i removed the heat sink and put it back i did not re install thermal paste
so the older paste was dried naturally i thought it would just stick on it again , i usually run the cpu with stock heat sink at 4ghz it gose around
80c with prime extreme load test much less with normal applications . i guessed this thermal paste issue later was i correct about it ? its good to learn it if its true .

_ 140c doh.gif did that burn/melt the background of the mother board ?
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spirit-crusher
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post #7 of 8
Quote:
Originally Posted by anas View Post

yes few seconds as the cpu/mb forced the shot down and did not throttle down the cpu as the heat sink was not in contact with the cpu but it was repeated for 3 or for times because i re powered the system not knowing why it was
shutting down ..... i took a look at bios cables bios battery i kept re powering not thinking its the heat sink as the fan
was running mostly i think now not because of the clips but my ignorance lol when i removed the heat sink and put it back i did not re install thermal paste
so the older paste was dried naturally i thought it would just stick on it again , i usually run the cpu with stock heat sink at 4ghz it gose around
80c with prime extreme load test much less with normal applications . i guessed this thermal paste issue later was i correct about it ? its good to learn it if its true .

I'm not sure, but I think it's hard to disagree that it's possible based on what you said here.

Quote:
Originally Posted by anas View Post

_ 140c doh.gif did that burn/melt the background of the mother board ?

I don't know, but it's only 284°F. I'm open to being corrected, but I would think that 284°F isn't hot enough to burn or melt anything like this in such a short amount of time.
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It's a computer!
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post #8 of 8
Thread Starter 
am too lazy to remove the mb and look behind it for black spots lol
i dont think i will put a heat sink without fresh thermal again
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spirit-crusher
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