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Computer won't start up after re-seating CPU Cooller(Heatsink+Fan)

2787 Views 13 Replies 8 Participants Last post by  The_Juggler, 
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After i re-seating my Intel CPU cooller from the cpu socket, my computer wont boot. It just boots and then shuts down after ~15 seconds. I gently scrubbed of all the thermo-paste that was on the cpu and on the bottom of the Heatsink and placed it back again. My cooller is attached to the motherboard by 4 pins each on one corner of the Heatsink. Although one of the pins is slightly damaged and i'm not using any thermo-paste right now. I don't think that the problem is in the overheating of the cpu, because i think that it can't reach high temperatures in 15 seconds after start up.

Sometimes it just loades normally and turnsdown. Sometimes a American Trends icon show-up and then sais "Overclocking or overvoltage failed,... f1 and f2.. etc."

I have an ASUS P5LD2-V motherboard and an Intel CPU with a Intel Heatsink and fan.

Is there anyone able to give me some kind of help to solve this problem ? Thanking you for your kind attention and hoping to read you soon, I send you my best ! almoste
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Have you tried pulled the cmos battery to reset the bios? Give that a go and see if it works.
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allenottawa
I would open it up and reseat it again.

You also might have put too much pressure on the CPU, therefor cracking it.
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Originally Posted by lsudvm
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Have you tried pulled the cmos battery to reset the bios? Give that a go and see if it works.

Yes i've tried that, didn't help.
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Uhh a CPU can easily overheat in 15 seconds. I had one of the push-pins loose on my stock heatsink and it got to 95C in about 30 seconds. Not having TIM (thermal paste) is also a big no-no. So see what you can do about that push-pin and the thermal paste.
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JKBenchmarks
Quote:


Originally Posted by almoste
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After i re-seating my Intel CPU cooller from the cpu socket, my computer wont boot. It just boots and then shuts down after ~15 seconds. I gently scrubbed of all the thermo-paste that was on the cpu and on the bottom of the Heatsink and placed it back again. My cooller is attached to the motherboard by 4 pins each on one corner of the Heatsink. Although one of the pins is slightly damaged and i'm not using any thermo-paste right now. I don't think that the problem is in the overheating of the cpu, because i think that it can't reach high temperatures in 15 seconds after start up.

Sometimes it just loades normally and turnsdown. Sometimes a American Trends icon show-up and then sais "Overclocking or overvoltage failed,... f1 and f2.. etc."

I have an ASUS P5LD2-V motherboard and an Intel CPU with a Intel Heatsink and fan.

Is there anyone able to give me some kind of help to solve this problem ? Thanking you for your kind attention and hoping to read you soon, I send you my best ! almoste

It's overheating because you don't have any thermal paste between the IHS and the base of the heatsink.
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Originally Posted by allenottawa
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I would open it up and reseat it again.

You also might have put too much pressure on the CPU, therefor cracking it.

I've reseated it like 5 times. The CPU can't be cracked, if it would be the whole computer wouldn't be able to boot.
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allenottawa
Whoa, you didn't put any TIM on! That's why it's overheating.
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Originally Posted by flak-spammer
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Uhh a CPU can easily overheat in 15 seconds. I had one of the push-pins loose on my stock heatsink and it got to 95C in about 30 seconds. Not having TIM (thermal paste) is also a big no-no. So see what you can do about that push-pin and the thermal paste.

Is it necessary to buy a new cooler because of that one pin, or can i solve the problem by just putting some thermal-paste on?
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You probably could get away with one missing push-pin but I really wouldn't suggest it. The intel coolers were designed that way to apply constant pressure to the surface of the CPU. If one push-pin will not go in you'll have up to 1/2 of the CPU area that isn't touching quite right.
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Quote:


Originally Posted by flak-spammer
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You probably could get away with one missing push-pin but I really wouldn't suggest it. The intel coolers were designed that way to apply constant pressure to the surface of the CPU. If one push-pin will not go in you'll have up to 1/2 of the CPU area that isn't touching quite right.

Thanks a lot, going tommorow to the stock to buy a new cooler
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R
Quote:


Originally Posted by flak-spammer
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Uhh a CPU can easily overheat in 15 seconds. I had one of the push-pins loose on my stock heatsink and it got to 95C in about 30 seconds. Not having TIM (thermal paste) is also a big no-no. So see what you can do about that push-pin and the thermal paste.

my i7 can run 50-60's without cooler on idle lol...
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Missing Push-pin and no thermal paste...your CPU is overheating it only takes 5 seconds at most for it to overheat.

Buy another push pin or new CPU Cooler all together, good cheap option is Hyper 212+.
Purchase TIM - OCZ Freeze

/thread
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T
1 - if there is no Thermal Paste between your CPU and the heatsink, it is probably overheating. The paste is very important for bringing the heat from the CPU to the heatsink - most everybody here probably uses more expensive paste for performance purposes.
I just used the stuff that came with my processor - I might change that someday.

And a CPU should shut off due to heat by itsself.

2 - you *might* be grounding your motherboard.

When I first put my machine together I had exactly this same problem. I called EVGA tech support (great tech support btw, actually better than Nintendo of America) and they suggested that the normal pressing down that you must do to attach the heatsink and fans was causing the back of my motherboard - probably the CPU socket - to touch the back of the case.

They suggested I try getting just the motherboard and CPU to work outside of the case. So hauled the mobo out of the case and sat it down on the clean wooden table, put just the CPU and heatsink assembly together, and according to the LED on the mobo it was booting just fine.

I thought I had a dead mobo or a dead processor - turns out I was just grounding out the circuitry.

Anyway I had to be more careful placing the spacers that separate your motherboard from the case - I was not using the ones that came with the mobo and that was the problem.
Make sure you are using all available spacers and that they are screwed in completely and correctly.
Also try booting the the board out of the case with absolute minimal hardware.
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