Processor Temperature

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Jim
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The processor fan recently went on my desktop. I replaced it with a new one and I've installed Core Temp 1.12.1

It's an Interl Core i5 4670 (Haswell) Processor, no overclocking.

Cores running nothing but win 10 and a chrome browser with TP open are running at 59-72 deg C which seems hot.

The fan was pre loaded with thermal paste.

Any advice on this, is the temp high? What else can I do?
 
Hmmmm!

I also have an Intel i5 but this one is the 4 core one and right now at mid 40 degree C. This is with the original stock retail fan.

When you removed the old one did you you clean the old thermal pad/gung/paste off the processor. I recall reading that even a little dried up old stuff remaining can compromise the new thermal paste/pad doing its job??? Thinks :- the same sort places that sell the new HSF units also sold little tubes of cleaner.

HTH :)

PS FWIW ~ My whole case has extra fans blowing air over the block of HDDs and two exhaust fans sucking the hot air out of the case.
 
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When you removed the old one did you you clean the old thermal pad/gung/paste off the processor.

I did clean it down. I think I might get some thermal paste and clean and reapply to see if I can resolve this.
 
72 looks like it's the maximum rated temp for that model processor before the hardware starts throttling down for safety.
Definitely check the seating of the heatsink. Burning 2.gif
 
I did clean it down. I think I might get some thermal paste and clean and reapply to see if I can resolve this.

OK silly question(s)

What temp was it showing before the original failed?

You did seat the new HSF properly and fully & squarely locked down?

Is the new HSF the same as the original and if not in what way is it different? i.e. is it specified to cool as well as the one that failed? NB not all Heat sink & fans combos are as efficient as others. I was quite surprised just how well the Intel stock retail one has performed!
 
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hat temp was it showing before the original failed?

You did seat the new HSF properly and fully & squarely locked down?

Is the new HSF the same as the original and if not is what way is it different? i.e. is it cooling as well as the one that failed?


I wasn't checking before I started getting problems and when I checked before replacing the fan the 4 cores were 90+ deg C and the computer was falling over.

I think I've got it locked on properly. Not the same fan exactly, this is the replacement https://www.amazon.co.uk/ARCTIC-Alp...0039P998M/ref=cm_cr_arp_d_product_top?ie=UTF8

I can't answer the question on is it better/ worse- I only checked the temp after my computer fell over and the Self Test advised a problem with the processor fan. My main concern is that everythign I've read since suggests that 40ish deg C would be the expected temperature range

I'll have a go at reseating, applying thermal paste, etc and see if it works, was really looking for some comments on whether these are normal sorts of temps for that processor at a little more than idle in case I'm chasing a problem that doesn;t exist.
 
Took the processor fan off and there was only a smudge to the preapplied thermal paste at one corner. Squeezed a dollop of paste on and reseated the fan. Still not convinced I'm doing it right but now have temps in the high 30's low 40's so there's an improvement anyway.

Thanks for the advice.
 
Took the processor fan off and there was only a smudge to the preapplied thermal paste at one corner. Squeezed a dollop of paste on and reseated the fan. Still not convinced I'm doing it right but now have temps in the high 30's low 40's so there's an improvement anyway.

Thanks for the advice.

As long as you clean both the HS and the surface of the processor and then apply a thin even layer of the thermal paste.......plus when attaching the HSF assembly in the proscribed manner which if I recall right is opposites pairs not one by one in rotation! A bit like tightening car wheel nuts ~ the idea is to keep the joint evenly 'pressurised'....this makes sure that the paste is in contact across the whole surface.

Temp wise ,as per my post above the temps look right as match my i5.

Never going to be amazing on the bog standard cheapo jobbies.

30-40 on idle to low load sounds about right.

Yup, temp to me sounds right as noted above :)
 
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If I remember correctly from guides when I used to build my own PCs about 10 years the advice was put a round bit (about the size of a pretty small pea) of thermal paste in the centre of the fan heat sink.

My i5 7500 (so 4 cores) is currently (Win 10, Firefox and this page open) showing 28, 29,29,30 on the cores.

Dave
 
If I remember correctly from guides when I used to build my own PCs about 10 years the advice was put a round bit (about the size of a pretty small pea) of thermal paste in the centre of the fan heat sink.

My i5 7500 (so 4 cores) is currently (Win 10, Firefox and this page open) showing 28, 29,29,30 on the cores.

Dave

Yep, that's what I do.
 
There is a FREE program called core-temp which I use:

https://www.alcpu.com/CoreTemp/

This allows you to monitor all cores and it will shut down your computer if any core reaches a critical temperature - which you can set.

I've set mine to 75 C and a couple of times it has activated and turned a PC off and so saved possible damage to it.
 
fwiw tcase temps are not the maximum operating temp of the chip. this is the tjmax value which determines whether throttling or thermal shutdown takes place, intel don't seem to publish this value but google suggest that it is more like 105C for your chip.

What is Tcase versus Tjunction?

These terms relate to Intel® Processor temperature for desktop and mobile systems. The processor must not exceed the maximum case temperature defined by the applicable thermal profile. Keeping temperature below the maximum helps optimize operation and long-term reliability.

  • Tcase: Temperature measurement using a thermocouple embedded in the center of the heat spreader. This initial measurement is done at the factory. Post-manufacturing, the BIOS calibrates Tcase. A diode between and below the cores delivers a reading.
  • Tjunction: Synonymous with core temperatures, and calculated based on the output from the Digital Thermal Sensor (DTS) using the formula:
    Tjunction = (Tjunction Max – DTS output)

    Tjunction Max (TjMax) is different than the TCC Activation Temperature. TCC offset represents where the processor starts to throttle, relative to the TjMax value. Tjunction can be the same temperature as TCC if the TCC offset equal to zero.

https://www.intel.co.uk/content/www/uk/en/support/articles/000005597/processors.html

either way though, your idle temps were too high.
 
75c is still a reasonably safe temp, assuming that is towards the upper end of the load you are running and it's not 24/7 temps.

overclocked I've had high 80s low 90s on some chips before I've bottled it and halted the stress test.
 
My Kaby Lake i7 runs at a max of 80c with 5ghz on all cores. It has been delidded though which massively helps and I ‘only’* use an air cooler on silent setting.

It idles about 30-35c

*Dark Rock Pro 3
 
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