CPU idling at 47C

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That'll help sure. Keep in mind, then you'll likely get a lot more dust, so you have to be more vigorous with regular cleaning (careful not to fry components when you do this, always ground yourself before you touch anything, and never use a vacuum). Look up the do's and don't of computer cleaning. Otherwise yes, with no fans, you might as well.
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Sedivy

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Dec 17, 2016
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3,960
It could be many things. Maybe your cooler is not seated well or your thermal paste dried out so it wouldn't hurt to clean and replace the paste and remount it. It could be your case airflow is really poor so it keeps trying to compensate. What case and how many fans you have on it?
When you say idle, does it actually say in task manager that system idle process is 90+ % or is there actually some process running that's ramping up your cpu?
 
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Sedivy

Estimable
Dec 17, 2016
2,315
0
3,960
Oh boy. If you don't have any case fans, that's your issue.
You need some airflow in order for cpu cooler to do its job. If you just keep spinning same warm air that's inside the case over the cpu cooler, temps will eventually rise a lot and so will cpu temp, even on idle.
 
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S

Sedivy

Estimable
Dec 17, 2016
2,315
0
3,960
That'll help sure. Keep in mind, then you'll likely get a lot more dust, so you have to be more vigorous with regular cleaning (careful not to fry components when you do this, always ground yourself before you touch anything, and never use a vacuum). Look up the do's and don't of computer cleaning. Otherwise yes, with no fans, you might as well.
 
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Solution
S

Sedivy

Estimable
Dec 17, 2016
2,315
0
3,960
They should have gone down more than that. If you're getting fans, get also some thermal paste (costs like 5-10$) and get a video on how to take off a cpu cooler and replace thermal paste. It would be good if you can figure out which cpu and cooler it is so you can watch that exact model and follow the instructions, but if not, just find video with cooler that looks similar. There should be tons of instructional videos on this on youtube. Carefully clean off your dried paste off your cooler and cpu surfaces, put some new paste in (but not too much), screw in your cooler tight and see how the temps are then.
 
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TMTOWTSAC

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Jun 27, 2015
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20,215


10-12C over ambient isn't horrible.
 
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