So I just built my computer, looked at temps and stress tested to make sure that everything was ok. On Speedfan my CPU is reading a ridiculous 90C after around 20 minutes of Prime95 (stopped after the temp was so freaking high), Core 0 at 37C and the AUX reading at 80C...does anyone know what could be wrong? At this point the only thing I could think of was that when installing the heatsink it clicked weird so I took it off...the thermal paste was already partially applied. Could my taking off the heatsink during the build process have fucked with my CPU temps? thanks
It's been idling for around 20 minutes. What I've been wondering is if applying the thermal paste wrong (or removing the heatsink and putting it back on, or whatever) could have caused such a high temperature abnormality, or if there's something else that could be going wrong as well.
@DystopiaX: This is a stock intel heatsink i take it? Are you positive all 4 pegs snapped into place firmly? if even one peg is loose you can get high temps, and no you dont have to worry about the thermal paste as it was still adequately gummy it is when it has dried out it is an issue.
Also check the temps with speccy so we can see all of your temps labeled a little more elgantly. and check the idle temp. also list the specs (also easy to just copy paste from speccy)
However, I looked at Speccy the core temps are low... Speedfan reads similarly but its CPU heat rating is still 89C. From what I can tell Speccy is just taking internal temps so...something's still messed up?
edit- Damn, no idea why the images are so small. Basically all the cores are reading around 35-40C, specs: i5 2400 stock cooler Asus p8h67 GTX 560ti 2x2 GB RAM Samsung Spinpoint F3 1tb Drive
double edit: and isn't 35-40C while idling still really high for a CPU?
@DystopiaX: When I was building my own PC, I removed and reseated the heatsink at least three times after the paste was applied, so that won't cause it. Now not using enough or using too much, that can cause it.
First off verify those temps are accurate. Run something like RealTemp and make sure those temps match up. Next, what processor do you have? My MBP runs at 90C under load which is in range, but that's a specially designed laptop CPU with a higher then average TJmax. If you can tell us what processor you're using, I can tell you just how far off you are. While 90C is high enough to be called abnormal, some processors are happy running at 75 or even 80C.
If that all checks out, remove your heatsink and clean the paste off. A little bit of rubbing alcohol will take care of it. Reapply a bit, you don't need all that much. Less then the size of a pea will do. Some people spread it around beforehand, some people let the heatsink's pressure do it for them, so that's up to you. Make sure everything is reseated firmly when you reattach the heatsink itself.
If your temps are STILL out of place, report back.
"
@DystopiaX: no on a stock heatsink that's a normal idle temp
"
Ok, but then as soon as I started up Prime95 it ran up to 80C, which shouldn't be happening... @Mirado said:
"
@DystopiaX: When I was building my own PC, I removed and reseated the heatsink at least three times after the paste was applied, so that won't cause it. Now not using enough or using too much, that can cause it. First off verify those temps are accurate. Run something like RealTemp and make sure those temps match up. Next, what processor do you have? My MBP runs at 90C under load which is in range, but that's a specially designed laptop CPU with a higher then average TJmax. If you can tell us what processor you're using, I can tell you just how far off you are. While 90C is high enough to be called abnormal, some processors are happy running at 75 or even 80C. If that all checks out, remove your heatsink and clean the paste off. A little bit of rubbing alcohol will take care of it. Reapply a bit, you don't need all that much. Less then the size of a pea will do. Some people spread it around beforehand, some people let the heatsink's pressure do it for them, so that's up to you. Make sure everything is reseated firmly when you reattach the heatsink itself. If your temps are STILL out of place, report back.
"
Posted right above you, it's an i5 2400. I also used realtemp and Speedfan and all the temps match up, so it's not an inaccurate reading.
@DystopiaX: Didn't see your post, sorry. Those idles are fine, most likely SpeedFan isn't reporting the temps correctly. Try something like RealTemp just to make sure. If both Speccy and RealTemp agree, then you are set. Are you using the stock heatsink?
EDIT Gah, again! Ok, well in that case it's the stock heatsink and you may want to look into something aftermarket.
"
@DystopiaX: Didn't see your post, sorry. Those idles are fine, most likely SpeedFan isn't reporting the temps correctly. Try something like RealTemp just to make sure. If both Speccy and RealTemp agree, then you are set. Are you using the stock heatsink?
"
Using the stock heatsink, Speccy, realtemp, and speedfan agree, except Speedfan is reading idle CPU temp at 90C. All readings jump up to around 80-90C as soon as I start doing something CPU intensive such as prime95.
"
@DystopiaX: and you are positive the heatsink is firmly intalled it doesnt wiggle or have give if you give it a sligh tug?
"
I just opened it up, repushed down everything and yeah it was pretty secure. Ran prime95 and checked temps again, they're all running at 78C. As soon as I stop the test they're all reading that the temps are dropping back down to 45C, except for the weird SpeedFan CPU and AUX readings of 88 and 80C respectively.
@DystopiaX: The stock HSF isn't...what's the word....good? 90C sounds outside of even its mediocre cooling abilities, but you may want to look into something else. $20 or $30 can get you a good HSF that runs cooler and quieter.
"
@DystopiaX: The stock HSF isn't...what's the word....good? 90C sounds outside of even its mediocre cooling abilities, but you may want to look into something else. $20 or $30 can get you a good HSF that runs cooler and quieter.
"
Even with the stock heatsink every benchmark I've looked at doesn't have it running this hot... also, motherboard is running at 65C according to Speccy, idk if that helps. Also idk what I did but this time around the temp is merely at 70C instead of 80 or 90C... edit- one core just hit 80C after around 10 minutes of Prime95.
@DystopiaX: Prime95 is a painful program, designed only to stress cooling solutions and check the stability of overclocks. It produces a type of heat that you won't see in normal usage. Coupled with the stock heatsink, you have the worst of both worlds. What are your temps after playing a game for a hour? As long as your average usage is within spec, there isn't too much you should worry about.
Now, if you idle at like 50C and hit 90C when playing a game, then you have cause for concern. For reference, my OC'd 2600k using a Noctua NH-D14 maxes at 55C; since that is a $80 cooler, you can expect temps that are 15 to 20C above that.
Those motherboard temps are abnormal; mine is 25C lower. How many fans do you have in your case? What is the ambient temp in your house?
"
@DystopiaX: Prime95 is a painful program, designed only to stress cooling solutions and check the stability of overclocks. It produces a type of heat that you won't see in normal usage. Coupled with the stock heatsink, you have the worst of both worlds. What are your temps after playing a game for a hour? As long as your average usage is within spec, there isn't too much you should worry about. Now, if you idle at like 50C and hit 90C when playing a game, then you have cause for concern. For reference, my OC'd 2600k using a Noctua NH-D14 maxes at 55C; since that is a $80 cooler, you can expect temps that are 15 to 20C above that. Those motherboard temps are abnormal; mine is 25C lower. How many fans do you have in your case? What is the ambient temp in your house?
"
Yeah, it was the initial 90C temps that were freaking me out. NOw I only get around 75C while running Prime95, which seems acceptable to me. HAven't played any games yet, since I'm still installing some on my computer. I have 2 fans in the case, it's a Fractal Design R3, the same one Will/norm/Jeff used in the build your own PC video. Ambient temp is around 69F.
@DystopiaX: So I actually was just in pretty much the same situation when I swapped out my B3 motherboard for the defective one. I had an i5 2500k with stock HSF and when I turned on Prime 95, within SECONDS I was pushing 75-80C. I probably would have hit 90C if I hadn't killed the stress test immediately. I think I was idling at around 35C. So I actually posted a forum thread in the PC and Mac sections asking about a new heatsink, which I installed about an hour ago. A $30 investment (Coolermaster Hyper 212+) and my temps are stabilizing between 60-62C with Prime 95 flogging away at the processor. I came from a low power C2D where anything other than the stock cooler was overkill, so the heat of the new processor caught me off guard.
You can also use the manufacturer monitoring utility if you don't trust the readings you're getting. Worth a shot. Maybe the sensors just read strangely.
What clock speed? Run at normal, with the CPU fan that came with the system.
Also check the temps with speccy so we can see all of your temps labeled a little more elgantly. and check the idle temp. also list the specs (also easy to just copy paste from speccy)
However, I looked at Speccy the core temps are low... Speedfan reads similarly but its CPU heat rating is still 89C. From what I can tell Speccy is just taking internal temps so...something's still messed up?
edit- Damn, no idea why the images are so small. Basically all the cores are reading around 35-40C, specs:
i5 2400 stock cooler
Asus p8h67
GTX 560ti
2x2 GB RAM
Samsung Spinpoint F3 1tb Drive
double edit: and isn't 35-40C while idling still really high for a CPU?
First off verify those temps are accurate. Run something like RealTemp and make sure those temps match up. Next, what processor do you have? My MBP runs at 90C under load which is in range, but that's a specially designed laptop CPU with a higher then average TJmax. If you can tell us what processor you're using, I can tell you just how far off you are. While 90C is high enough to be called abnormal, some processors are happy running at 75 or even 80C.
If that all checks out, remove your heatsink and clean the paste off. A little bit of rubbing alcohol will take care of it. Reapply a bit, you don't need all that much. Less then the size of a pea will do. Some people spread it around beforehand, some people let the heatsink's pressure do it for them, so that's up to you. Make sure everything is reseated firmly when you reattach the heatsink itself.
If your temps are STILL out of place, report back.
Ok, but then as soon as I started up Prime95 it ran up to 80C, which shouldn't be happening...
@Mirado said:
Posted right above you, it's an i5 2400. I also used realtemp and Speedfan and all the temps match up, so it's not an inaccurate reading.
EDIT Gah, again! Ok, well in that case it's the stock heatsink and you may want to look into something aftermarket.
Using the stock heatsink, Speccy, realtemp, and speedfan agree, except Speedfan is reading idle CPU temp at 90C. All readings jump up to around 80-90C as soon as I start doing something CPU intensive such as prime95.
I'll open it up and check now.
I just opened it up, repushed down everything and yeah it was pretty secure. Ran prime95 and checked temps again, they're all running at 78C. As soon as I stop the test they're all reading that the temps are dropping back down to 45C, except for the weird SpeedFan CPU and AUX readings of 88 and 80C respectively.
Even with the stock heatsink every benchmark I've looked at doesn't have it running this hot...
also, motherboard is running at 65C according to Speccy, idk if that helps.
Also idk what I did but this time around the temp is merely at 70C instead of 80 or 90C...
edit- one core just hit 80C after around 10 minutes of Prime95.
Now, if you idle at like 50C and hit 90C when playing a game, then you have cause for concern. For reference, my OC'd 2600k using a Noctua NH-D14 maxes at 55C; since that is a $80 cooler, you can expect temps that are 15 to 20C above that.
Those motherboard temps are abnormal; mine is 25C lower. How many fans do you have in your case? What is the ambient temp in your house?
Yeah, it was the initial 90C temps that were freaking me out. NOw I only get around 75C while running Prime95, which seems acceptable to me. HAven't played any games yet, since I'm still installing some on my computer.
I have 2 fans in the case, it's a Fractal Design R3, the same one Will/norm/Jeff used in the build your own PC video. Ambient temp is around 69F.
@DystopiaX: So I actually was just in pretty much the same situation when I swapped out my B3 motherboard for the defective one. I had an i5 2500k with stock HSF and when I turned on Prime 95, within SECONDS I was pushing 75-80C. I probably would have hit 90C if I hadn't killed the stress test immediately. I think I was idling at around 35C. So I actually posted a forum thread in the PC and Mac sections asking about a new heatsink, which I installed about an hour ago. A $30 investment (Coolermaster Hyper 212+) and my temps are stabilizing between 60-62C with Prime 95 flogging away at the processor. I came from a low power C2D where anything other than the stock cooler was overkill, so the heat of the new processor caught me off guard.
You can also use the manufacturer monitoring utility if you don't trust the readings you're getting. Worth a shot. Maybe the sensors just read strangely.