i7 7700k temps with 212 evo

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rderubeis

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Mar 15, 2015
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So i just got my i7 7700k in the mail i installed it, and i already had a cool master 212 evo so i used that.

My idle temps are around 35c
When im playing csgo at about 50 percent load im getting 60c

when i ran prime 95 to test under full load i got nervous i saw 1 of the cores reach 81c
 
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photonboy
1) Update:
"59-60c in my bios which seems really high"

Uh... it is, but your stress tests are fine. Your BIOS settings don't make sense (and you didn't mention that before) as that's idle temperature and it should be closer to 30-40degC range. That seems more like a REPORTING ERROR to me as there's absolutely no way it can be that high barring the fan turning right off.

AND, you said initially it was 35degC in (Windows idle I assume) so...

2) BIOS UPDATE:
See if a newer version exists. You don't have issues in the OS so it's really not required. It may or may not fix a reporting error if it exists.

3) Did you OC, or just use defaults?
- it sounds like it's just default, and it works fine in Windows so I wouldn't mess with it. (note...
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Crumpet 1

Crumpet 1

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The Cm Hyper 212 is what i'd consider the absolute bare minimum for cooling a 7700k, it's not really good enough.

Kaby Lake runs HOT, really you should be looking at much higher cooling performance ala Noctua D15 or maybe a decent AIO Water cooler.
 
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rderubeis

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so i played a full game of csgo and under 50-55 percent cpu usage i was at about 60-65c one of my cores hit 71c. Are you sure thats normal 1 core hitting 71c
 
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photonboy

photonboy

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Jun 20, 2006
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Yes. It's fine.
You can reduce the temps with a better cooler but that's more about NOISE as you aren't going to increase the lifespan notably.

For example, one of these (and adjust the motherboard's FAN CONTROL SOFTWARE for an optimal noise vs temp profile):
a) Cryorig H7 ($35USD approx.)
b) Noctua NH-U12S ($75, so hard to recommend: https://ca.pcpartpicker.com/product/wjmLrH/noctua-cpu-cooler-nhu12s
c) Be Quiet DR3 (also $75 https://ca.pcpartpicker.com/product/YwGkcf/be-quiet-cpu-cooler-bk018

It's hard to find a cooler that's under $60 that is enough improvement over the Cryorig H7 to justify it's price. Also, I found the NOISE of the CM 212 EVO was significantly reduced when replacing the fan. I built my sister a PC but wasn't satisfied with the noise even after tweaking the mobo fan profile. I had a suitable Noctua fan, easily replace it and BAM it was quieter (RPM is adjusted by temperature so either RPM is lower or fan is just quieter or some combo of that).

If you want slightly lower temps, or same temps but lower NOISE I'll try to link a suitable FAN replacement below in a separate post.

AMD CPU's are different and have lower temperature ratings.

So again, the OPTIMAL lifespan is roughly around 75degC, they run often over 80degC in laptops due to limited space and are fine. The thermal shutoff point is near 100degC (it's to prevent damage. failure and OPTIMAL are different. I'm frankly not concerned unless it's hitting over 85degC regularly).
 
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rderubeis

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so ya those temps i mentioned were like playing csgo and stuff, but its weird because when i use prime 95 and run blend and stress test my cpu hits 65-70c under full load using blend, which seems really good. What im concerned about in my bios the cpu temp is reading 59-60c in my bios which seems really high.
 
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photonboy

photonboy

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Jun 20, 2006
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1) Update:
"59-60c in my bios which seems really high"

Uh... it is, but your stress tests are fine. Your BIOS settings don't make sense (and you didn't mention that before) as that's idle temperature and it should be closer to 30-40degC range. That seems more like a REPORTING ERROR to me as there's absolutely no way it can be that high barring the fan turning right off.

AND, you said initially it was 35degC in (Windows idle I assume) so...

2) BIOS UPDATE:
See if a newer version exists. You don't have issues in the OS so it's really not required. It may or may not fix a reporting error if it exists.

3) Did you OC, or just use defaults?
- it sounds like it's just default, and it works fine in Windows so I wouldn't mess with it. (note some settings may prevent your system booting if you change them, usually CSM, UEFI, secure mode etc)
- if you did OC you could try going back to DEFAULT settings, then enable XMP (and make any other changes you know of that are necessary) and save, reboot.

4) NOCTUA FAN: again, this is really to reduce noise. If that's not an issue you can ignore this. (also handy if considering case fans. Even if you want a different BRAND you should be aware that case fans and CPU fans are different in how they push air, and also the RPM range, some boards don't support 3-pin though yours probably supports both 3-pin and 4-pin.

will be 4-pin, PWM fan anyway so no worries. Just shut down and change fan (clips).

**So the NF-F12 appears to be the best 12cm, Noctua fan for you (see above link). It also has an LNF adapter so you can reduce fan speed, and I would actually use it. WHY? It helps reduce the fan speed thus noise when the computer first starts up. You absolutely do not need full RPM once you setup your fan profile.

The range I'd choose would be probably about 40% max (600RPM) to 70% max. Run Prime95 and use 80 or 85degC as the worst-case so put the RPM at the LOWEST speed that maintains that for ten minutes.

(a good case fan often sees very minimal CPU/GPU benefits going above 700RPM but it varies on several factors.)

$20 fan: https://www.amazon.com/Noctua-NF-F12-PWM-Cooling-Fan/dp/B00650P2ZC

So..
#1 (optional) - record noise (or try to remember) with Prime95 at 80degC (and the fan profile adjusted to maintain that)

#2 shut down, install fan

#3 optimize fan profile with the motherboard software (i.e. 40% RPM up to 50degC, then ramp up to 70% at 80degC, and 100% at max RPM). Just an example. (I try to keep the fan from changing speed in light usage so 50degC is probably a good point, and 700RPM with that CPU cooler is almost silent anyway).
 
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Solution
photonboy

photonboy

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Jun 20, 2006
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We have the temperatures, and he's okay. The only issue is whether he'd like that QUIETER or not. As I said, Intel's OPTIMAL is near 75degC and laptops run over 80degC frequently.

BTW, if you overclock further the temperature raises significantly and THEN your cooler would be insufficient. Max Turbo is already 4.4GHz (probably 4.2GHz all cores when gaming) so it's hard to recommend going higher which would very RARELY give much gaming benefit.

(Temperature can easily go 20degC higher with a high overclock.)

He can replace his fan with a $20 fan and slightly reduce temps or as said reduce NOISE at the same temps. Not talking out of my xxx either as I tested that EXACT cooler and replaced with the EXACT same fan.
 
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rderubeis

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Mar 15, 2015
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I always see people talk about there pc being loud, but i dont notice any noise at all with my pc. I was just worried that in my bios temps reading 60c for my cpu, but on windows it idles at like 35-40c and 70c under full load. Yes my system is stock everything is at default settings. Only thing i turned off was speed step and turbo and c1e and c6 because i was told thats best for gaming. Im not sure if thats true tho. Just the 60c reading in my bios temp scares me. Asrock already sent me the updated bios chip thats how im able to run kabylake on my z170 motherboard
 
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synphul

synphul

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Mar 11, 2011
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Some of these temp ranges help but it will come down to specifics. For instance the idle in win10 pro mentioned by mdd1963, the temps may be normal for idle if the room's ambient temps are 20-22c. If ambient temps are 25-30c, expect higher idle temps (and max temps) since ambient room temps have an affect on overall cpu temperatures. As does case cooling (efficiency).

Which version of prime95 can also affect temps, for intel cpu's p95 version 26.6 small fft's should be used. Newer versions of p95 use avx instructions in a way that stresses the cpu beyond what you'd normally see in real world use and will result in higher temps most of the time. Small fft's give a steady state load (non fluctuating) so temps can be read stably and won't be jumping around.

The 212 evo has a center screw that can be tightened to increase mounting pressure but some care needs to be taken with skylake/kabylake since the pcb's are a little thinner. Not to say they'll fold in half but excessive mounting pressure can warp the corners a bit, more prone to it than devil's canyon and previous that used thicker pcb substrates. Better cooler contact can result in more efficient heat transfer and better temps.

It sounds as though the 212 evo is doing a satisfactory job of cooling the 7700k at stock, if looking to overclock a better cooler may be needed. The 212 evo is a decent cooler for the price but ultimately it's still a budget cooler. One core hitting 71c (or a temp significantly higher by comparison to the others) is normal if that core is under 90-100% load while the others are at say 40-50%. Many games still rely on a main thread/core and in any workload the core temps will respond to their usage. When all cores are under similar stress/load whether it's 30% usage, 50% or 90% then their temps will be similar. Otherwise they will correspond to usage of that particular core.
 
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outofthesky

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Feb 7, 2018
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Stick another fan sucking on the other side and it will drop your max temp by 10x also what I did I reverse my case fan on the rear to draw from back and blow directly onto the CPU cooler and set the other fan to exhaust the internal air rather than draw into case, have it warmed up by components then draw through the CPU cooler makes no sense.
 
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