i7-7700k temperatures too high?

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freser

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Apr 15, 2017
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Hello there!

So I built a whole new rig a few days ago, containing an i7-7700k.
The CPU is sitting on an MSI Z270 Gaming Pro Carbon and is aircooled with a Dark Rock 3.
Also I'm running 2x8 GB DDR4-3200 sticks with XMP (I also tried Memory Try It! by MSI with optimized settings). Game Boost (OC) is off!
Intel Turbo Boost and the function that is controlling the clock speed has been tried both on and off.
Also the CPU is NOT delid and I don't want to try it out because the hardware is just bought and also I'm pretty sure I would destroy it with my "skills".

I'm trying to find out if the CPU is alright for days now. I know there are hundreds of threads about the 7700k temperature but I still couldn't find a clear answer on this.


So here are the temperatures:
Idle: 38-43°C. Average is ~41°C
Gaming: 65-80°C
Prime95 (v28.10): 85-91°C

I already reapplied the thermal paste once because I thought I failed there somehow. But no changes (maybe 1°).
Another "problem" is that the temps are jumping every second. 38-44-39-45... and so on.

I hope someone can say if this temperatures are alright or if there is a problem with the cpu.
Thanks in advance!

P.S: Sorry if something is ugly written, I'm not a native speaker ;)
 
Solution
CompuTronix
freser,

On behalf of Tom's Moderator Team, welcome aboard!

At the top of all our Forums are "Stickies" which are informative Threads that are permanently "stuck" in place so they're always available as reference material for everyone's benefit.

Near the top of the CPU's Forum you will see the following Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Everything you need to know is in there. Please give it a read.

Here's the recommended operating range for Core temperature:

80°C Hot (100% Load)
75°C Warm
70°C Warm (Heavy Load)
60°C Norm
50°C Norm (Medium Load)
40°C Norm...
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CompuTronix

CompuTronix

Intel Master
Moderator
Nov 13, 2006
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38,240
freser,

On behalf of Tom's Moderator Team, welcome aboard!

At the top of all our Forums are "Stickies" which are informative Threads that are permanently "stuck" in place so they're always available as reference material for everyone's benefit.

Near the top of the CPU's Forum you will see the following Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Everything you need to know is in there. Please give it a read.

Here's the recommended operating range for Core temperature:

80°C Hot (100% Load)
75°C Warm
70°C Warm (Heavy Load)
60°C Norm
50°C Norm (Medium Load)
40°C Norm
30°C Cool (Idle)
25°C Cool

Core temperatures up to 80°C are safe.

Do NOT use versions of Prime95 later than 26.6 on 2nd through 7th Generation i3, i5 or i7 CPU's, which all have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95 such as 28.9 run AVX code on the CPU's Floating Point Unit (FPU) which causes unrealistic temperatures up to 20°C higher. The FPU test in the utility AIDA64 shows similar results.

This includes the version you ran, 28.1.

Please download Prime95 version 26.6 - http://www.mersenneforum.org/showthread.php?t=15504

Run only Small FFT’s for 10 minutes.

Use Core Temp to measure your temperatures - http://www.alcpu.com/CoreTemp

Keep in mind that all computer temperatures are subject to ambient room temperature. Normal or "standard" is 22°C or 72°F. We get people who write into our Forums from all over the planet with ambient temperatures anywhere from 10°C to 40°C, so it's important to know if your ambient temperature is high or near normal.

Q: What is your ambient temperature?

Also, Intel’s specification for DTS sensor response time is 256 milliseconds, or about 1/4th of a second. Since Windows has dozens of Processes and Services running in the background, it’s normal to see rapid and random Core temperature “spikes” or fluctuations, especially during the first few minutes after startup.

6th and 7th Generation processors have "Speed Shift" technology, which is more responsive to changes in workload than "SpeedStep" used on 5th Generation and previous processors. Speed Shift has more clock and voltage levels, which create more temperature spikes than SpeedStep. Excessive spiking is often caused by unnecessary tray startup processes.

Once again, welcome aboard!

CT :sol:
 
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Solution
G

GhislainG

Titan
Jul 16, 2008
23,962
5
74,965
30°C idle requires a low ambient temperature or a very powerful cooler; your CPU idles at normal temperatures. 55°C during gaming depends on ambient temperature, how busy the CPU is during gaming, the cooler, etc. If it doesn't throttle while running P95 28.1, then you're fine. Version 26.6 suggested by CompuTronix will make the CPU run 10-15°C cooler because it doesn't use the newest AVX instructions.
 
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