i7 4790k overheating?

Thazzrill

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Aug 16, 2012
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Hello,

I've recently upgraded my setup, changing the motherboard, the CPU and the PSU. Originally I wanted to get the i7 4790k with the hyper 212 evo, but they didn't have it at the time so they replaced it with Hyper TX3i. The motherboard I use is asrock z97 anniversary.

When I installed everything the Hyper TX3i was terrible as it gave me about 50-55 idle, so I replaced it with the stock cooler and it worked better at about 40-50 idle. I'm almost 100% certain I mounted both properly as I did it multiple times, re-applied thermal paste and I checked the back of the case to see if everything fit properly. Right now I'm worried whether the temperatures are ok with the stock cooler or if there is something wrong.

With core temp and hw monitor I get about 40-60C when I only have google chrome open and a few other applications (the cpu usage is at about 30%). The weird thing is that in games it doesn't go too crazy, I tried playing arma 3 multiplayer with a bunch of people which is very cpu intensive and I got to about 72 C. However when I ran prime95 it got to almost a 100 degrees real quick. Keep in mind all of this is at around 15-25C room temperature. Also I am not overclocking the cpu and I have turbo enabled. I did disable turbo in bios but it didn't really change much. So is it normal for the cpu to get to such temperatures, around 50 degrees when not much is going on? The main reason I'm worried is because I need this PC for video editing and room temperature is going to increase during the day.

I am planning to invest in a good cooler in a month or two, but is there anything I can do now, like decrease the voltage as at the moment I'd much rather have the pc not die than to run at max performance.

Configuration
i7 4790k
gtx 750ti
8gb Ram
EVGA 600W Power Supply

Also got an a screenshot of CPU-Z (https://gyazo.com/c4e9b8a9e0e8a7f09a9f682273ad8ffd) and Core Temp (https://gyazo.com/40ee73dc226d2dc450e4cfb925344fb4)
 
Solution
Ambient temperature is a major factor which affects all computer temperatures. Normal or standard ambient temperature is 22C or 72F. You listed your ambient as 15C to 25C, which is 59F to 77F, and a very wide spread.

Here's the temperature conversions and a short scale:

Cx9/5+32=F ... or ... F-32/9x5=C ... or a change of 1C = a change of 1.8F

30.0C = 86.0F Hot
29.0C = 84.2F
28.0C = 82.4F
27.0C = 80.6F
26.0C = 78.8F Warm
25.0C = 77.0F
24.0C = 75.2F
23.0C = 73.4F
22.0C = 71.6F Norm ... or ... 22.2C = 72.0F
21.0C = 69.8F
20.0C = 68.0F
19.0C = 66.2F
18.0C = 64.4F Cool

Can you perhaps give me a more accurate estimate of your ambient temperature?

Here's the normal operating range for...

craftmaster_96

Reputable
Sep 6, 2015
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4,660
100C is pretty much the absolute max for that chip and I wouldn't be comfortable running it above 85-90 for prolonged periods of time. If you are just hitting those temps for benchmarks designed to push your cpu to the limit you should be fine. 40-60 is a perfectly normal operating temp. Leave the stock settings if you want your cpu to last for a long time. Don't worry so much about your cpu as long as you have cooling you should be fine, i7's are pretty hardy. The cpu will run a stock setting for years. I would renable turbo boost and don't mess with the voltage at all. Messing with the voltage even to lower it can cause you to accidentally break your cpu.
 
Disregard the Prime temps, it's a crazy stress test.
Surprised the Hyper TX3i didn't do better than the stock cooler and it makes me lean more towards what you haven't mentioned.. case airflow.
You've pretty much eliminated the heatsink as the problem, and the thermal paste. Is the tower airflow a possibility ?
What are your GPU temps like and are they stock fan speeds?
 

CompuTronix

Intel Master
Moderator


Thazzrill,

Do NOT run any versions of Prime95 later than 26.6. Here's why:

Core i 2nd through 6th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95, such as 28.9, run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the utility AIDA64 shows similar results.

Prime95 v26.6 produces temperatures on 3rd through 6th Generation processors more consistent with 2nd Generation, which also have AVX instructions, but do not suffer from thermal extremes due to having a soldered Integrated Heat Spreader and a significantly larger Die.

Please download Prime95 version 26.6 - http://windows-downloads-center.blogspot.com/2011/04/prime95-266.html

Run only Small FFT’s for 10 minutes.

Your Core temperatures will test 10 to 20C lower with v26.6 than with v28.9.

Please read this Tom’s Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Thanks,

CT :sol:
 

Thazzrill

Honorable
Aug 16, 2012
62
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10,630
Thank you for the answers. I think the case is a bit of an issue, it really doesn't seem that good. The side panel had this plastic on it and once I removed it, it dropped by about 5-10 celsius.
 

CompuTronix

Intel Master
Moderator
Ambient temperature is a major factor which affects all computer temperatures. Normal or standard ambient temperature is 22C or 72F. You listed your ambient as 15C to 25C, which is 59F to 77F, and a very wide spread.

Here's the temperature conversions and a short scale:

Cx9/5+32=F ... or ... F-32/9x5=C ... or a change of 1C = a change of 1.8F

30.0C = 86.0F Hot
29.0C = 84.2F
28.0C = 82.4F
27.0C = 80.6F
26.0C = 78.8F Warm
25.0C = 77.0F
24.0C = 75.2F
23.0C = 73.4F
22.0C = 71.6F Norm ... or ... 22.2C = 72.0F
21.0C = 69.8F
20.0C = 68.0F
19.0C = 66.2F
18.0C = 64.4F Cool

Can you perhaps give me a more accurate estimate of your ambient temperature?

Here's the normal operating range for Core temperature:

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

Core temperatures in the mid 70's are safe. You're bumping up against 80, but again, at what ambient temperature?

If you ran P95 v26.6 Small FFT's at 25C ambient, then your core temperatures are borderline OK, but if you tested at 20C ambient, then that's not so good because it doesn't leave you any headroom for higher ambient temperatures.
 
Solution

Thazzrill

Honorable
Aug 16, 2012
62
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10,630


The reason why it is so spread out is because I tested it through out the day and later in the night. At the time when I ran prime it was about 28 C outside and I'm guessing a few degrees less in my room.
 

CompuTronix

Intel Master
Moderator
Thank you for clarifying. Well then, for the stock cooler, your core temperatures are OK for now until you can get a better cooler. Hopefully your video editing software doesn't exceed the workload of P95 V26.6 Small FFT's. Just keep an eye on your core temperatures and you should be fine.

CT :sol: