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Temperature too high?

Tags:
  • Cooling
  • CPUs
  • Temperature
  • Intel i7
Last response: in CPUs
February 23, 2014 1:36:08 AM

Hello,

The temperatures on my i7 3770 (stock cooler for now) are way too high, I think. On idle they're about 50C, but sometimes they are very jerky. For exmaple, they will jump from 48 to 57 in a second. I stress tested with Prime95 and it got to 97C in less then a minute, so I turned it off for safety. I was using SpeedFan to test the temperatures.

It's quite worrying, so if anyone has any tips I'd be grateful.

More about : temperature high

a c 225 à CPUs
February 23, 2014 8:04:16 AM

if your temps are 80+ degrees then i would be worried, 97 degree in such a short time even worse. I would strongly suggest getting a Cooler master Hyper 212 EVO CPU cooler to keep you CPU temps down. They cost around $40 and are the best in it's price range at cooling. Sounds like your current CPU cooler is doing a terrible job.
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a c 399 à CPUs
February 23, 2014 8:30:56 AM

Sounds like an awful application of thermal paste or something.
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a c 587 à CPUs
February 23, 2014 8:35:08 AM

If the CPU gets that hot running Prime95, then the HSF is not making full contact, the ambient temperature is significantly over 22°C or the case has poor ventilation. I can run Prime95 torture tests on mine for hours and it's fine according to SpeedFan, but I don't trust it much because other values that it reports are way off. Let the system run in the BIOS (hardware monitor) and check how hot it gets after 10 minutes. If the CPU gets too hot, it will throttle and you'll notice a performance decrease.
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February 23, 2014 9:26:15 AM

So, I've decided to take it apart and clean the dust off etc. I haven't really noticed how much dust there was built up. After doing that, the temperatures got somewhat better, but still too high, about 96-99C on 100% load, but not going over that (I ran it for about 15 minutes, not enough for a real test, I know, but I didn't want to risk it). Before the clean they reached 100C in less then a minute and would continue rising, so it is definitely an improvement. And idle seems to be better as well, (high 40s, while it was high 50s before).

unknownofprob said:
if your temps are 80+ degrees then i would be worried, 97 degree in such a short time even worse. I would strongly suggest getting a Cooler master Hyper 212 EVO CPU cooler to keep you CPU temps down. They cost around $40 and are the best in it's price range at cooling. Sounds like your current CPU cooler is doing a terrible job.

I guess the best would be to get a new cooler, but I'm wondering, how risky is it to leave it like this for some time? I mean, I know 50$ isn't a lot, but currently for me it is. Would it be fine to leave it like this for a month or two? What are the risks?

GhislainG said:
If the CPU gets that hot running Prime95, then the HSF is not making full contact, the ambient temperature is significantly over 22°C or the case has poor ventilation. I can run Prime95 torture tests on mine for hours and it's fine according to SpeedFan, but I don't trust it much because other values that it reports are way off. Let the system run in the BIOS (hardware monitor) and check how hot it gets after 10 minutes. If the CPU gets too hot, it will throttle and you'll notice a performance decrease.

When putting the HSF back, I've noticed that one of the pins doesn't make the "click" the other three do. It seems to be a bit loose, and doesn't lock in place. Might that be the issue? I've tried testing it through BIOS and it reports about the same results, and I've also tried HWMonitor, with again the same results.

ewok93 said:
Sounds like an awful application of thermal paste or something.

well, I haven't really applied any thermal paste myself, it's still using the "stock" thermal paste that came on the heatsink.
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a c 587 à CPUs
February 23, 2014 9:57:50 AM

You wrote "When putting the HSF back, I've noticed that one of the pins doesn't make the "click" the other three do. It seems to be a bit loose, and doesn't lock in place. Might that be the issue? I've tried testing it through BIOS and it reports about the same results, and I've also tried HWMonitor, with again the same results." All 4 pins have to be securely locked in place; otherwise CPU cooling can be severely affected. Do you have access to the back of the motherboard to see if all 4 pins are fully inserted? To be honest the stock cooler works quite well for a non-overclocked CPU if it's installed in a well ventilated case and in a room where ambient temperature doesn't exceed 25°C.

If the HSF was removed, you need to clean the old heat paste and apply a very thin layer of new paste.
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a c 399 à CPUs
February 23, 2014 10:17:50 AM

Using old thermal paste is a huge issue. You can get new stuff at Radio Shack. Just do a bit the size of a grain of rice and put it on like normal.
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a c 225 à CPUs
February 23, 2014 5:28:38 PM

you will need to replace the thermal paste or the cooler, it is not good and safe to leave the CPU running at those temps.
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a c 399 à CPUs
February 23, 2014 5:37:42 PM

You're better off not using any thermal paste than re-using it over and over. You need new stuff.
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a c 225 à CPUs
February 23, 2014 5:38:44 PM

like a Cooler Master Hyper 212 EVO, best to get it as soon as possible.
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February 24, 2014 4:07:14 AM

I think there's been a misunderstanding about the thermal paste. When I said I've been using "stock" paste, I meant that I've been using it before I've removed the heatsink for cleaning, so too much paste wasn't the problem. Up until yesterday, I haven't opened the thing at all since I've built it about a year ago, so it was still using the paste that came on. After I cleaned it, I put some new paste in, of course. However, it's not the best quality, not even branded, but that's the only one I could get my hands on. I've ordered some AS5, though, so I'll put that on when it comes.

GhislainG said:
You wrote "When putting the HSF back, I've noticed that one of the pins doesn't make the "click" the other three do. It seems to be a bit loose, and doesn't lock in place. Might that be the issue? I've tried testing it through BIOS and it reports about the same results, and I've also tried HWMonitor, with again the same results." All 4 pins have to be securely locked in place; otherwise CPU cooling can be severely affected. Do you have access to the back of the motherboard to see if all 4 pins are fully inserted? To be honest the stock cooler works quite well for a non-overclocked CPU if it's installed in a well ventilated case and in a room where ambient temperature doesn't exceed 25°C.

If the HSF was removed, you need to clean the old heat paste and apply a very thin layer of new paste.


I can't see the motherboard from the other side, no, but I guess that might be the problem, the broken pin.. Hopefully, is it safe to use until I get a new cooler in a few days, what do you think?

unknownofprob said:
you will need to replace the thermal paste or the cooler, it is not good and safe to leave the CPU running at those temps.


The temperatures now are 35-45 when idle, 90-98 on 100% load. Is that fine for now, until I get a better cooler?

unknownofprob said:
like a Cooler Master Hyper 212 EVO, best to get it as soon as possible.


I can't find that model in any of the computer shops here, at least not on their website catalogs. How about a Cooler Master Hyper TX3 EVO? Or maybe ThermalTake Contac 30?

Thank you everyone for the replies.
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a c 587 à CPUs
February 24, 2014 4:46:44 AM

The CPU will throttle when it gets too hot; If I were you I wouldn't use it for anything that causes high CPU utilization. A Cooler Master Hyper TX3 EVO would be fine as you can't overclock.
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a c 399 à CPUs
February 24, 2014 6:52:26 AM

Both of those would be fine, I really wouldn't use it in the meantime, that's just way too hot.
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a c 225 à CPUs
February 24, 2014 6:53:11 AM

yes, if you have a 212X that is great also. The TT Contac 30 is also a great option along with the TX3 EVO, just get whichever you like best, both perform pretty close.
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February 27, 2014 12:13:12 PM

I bought a Contac 30 and the temperatures are down. Didn't seem to go above 70C on 100% load during an hour of testing.

So thanks everyone for the help!
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a c 225 à CPUs
February 27, 2014 6:55:49 PM

your welcome, if you ever need to ask anything else, just ask and we'll gladly help.
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