i7 4790k + Hyper 212X High temps in idle

[Pedro Castro Alves]

Hi, i have an i7 + Hyper 212X, but with the stock cooler the idle temps were lower. With Hyper 212X it stays about 35 ~ 40ºc (Using the thermal grease included with the cooler), and the full load temps (using prime95) i think they are good: max 63ºc Stock and max 75ºc @ 4.4Ghz. The issue seems to be just with idle temps

 

[t3naci0ust]

What were you getting with your stock cooler? and what was the peak temps with the stock cooler?

 

[photonboy]

This cooler is slightly better however the temperature will be HIGHER than stock if the fan is moving less air.

I doubt there's an installation issue and since your max temp is 75degC (Tjmax is 105degC) I wouldn't worry about things. It sounds setup fine assuming fan noise is low and properly scales with temperature (motherboard fan control software).

Other:
The proper CPU setup is the default settings which maintain the Intel Power Management profile (and "XMP" as well for memory/CPU optimization).

I already helped some guy who "overclocked" the same CPU to 4.4GHz by using manual settings including raising the voltage. He ended up with higher temps (and noise) but the default was 4.4GHz Turbo anyway so it made no sense to do this.

(You can also try a motherboard "quick" overclock in the BIOS which may give you 4.5GHz but I wouldn't bother)

 

[Dark Lord of Tech]

For that heatsink , those temps are normal.

 

[Pedro Castro Alves]

What were you getting with your stock cooler? and what was the peak temps with the stock cooler?

Temps with Cooler Box (ºC)

Idle: about 30
Gaming (cause I didnt run any stress test w/ the stock cooler): 70 and max 75
Furmark @ 4.4Ghz: 100

Considering also the fact that I was using a white shitty thermal grease

 

[CompuTronix]

What is your ambient temperature?

Which version of Prime95?

Did you run Small FFT's?

 

[Pedro Castro Alves]

What is your ambient temperature?

Which version of Prime95?

Did you run Small FFT's?

I didnt know exactly the ambient temp, but it was about 26 ~ 28c

Prime v28.5 i ran just blend test

 

[CompuTronix]

Your ambient is a little on the warm side. Intel's Thermal Specifications are based on 22C which is "Standard Ambient".

Also, do not use any version Prime95 later than 26.6. Here's why:

Core i 2nd, 3rd and 4th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95 run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the software utility AIDA64 shows the same results.

Prime95 v26.6 produces temperatures on 3rd and 4th 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 35% larger Die.

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

Please run only Small FFT’s for 10 minutes.

Your Core temperatures will test 10 to 20C lower.

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


Thanks,

CT

 

[Pedro Castro Alves]

Your ambient is a little on the warm side. Intel's Thermal Specifications are based on 22C which is "Standard Ambient".

Also, do not use any version Prime95 later than 26.6. Here's why:

Core i 2nd, 3rd and 4th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95 run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the software utility AIDA64 shows the same results.

Prime95 v26.6 produces temperatures on 3rd and 4th 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 35% larger Die.

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

Please run only Small FFT’s for 10 minutes.

Your Core temperatures will test 10 to 20C lower.

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


Thanks,

CT

I ran the version of prime that you suggested and the core temps according with HWMonitor were about 60 ~70 @4.00Ghz running Small FFTs. Another thing, what temps do you know are normal and safe for the 4.4Ghz operating mode? (running Smal FFts

 

[junkeymonkey]

if you look up haswell temps [google around ] you will see lots on this issue and I thought the refresh was to improve on that but then they call them devils canyon and not artic tundra ??? wonder why ??

 

[CompuTronix]

Pedro Castro Alves,

Mid-70's are safe for everyday real-world workloads. Your core temperatures are good.

Intel's Thermal Specifications for your i7 4790K is "Tcase", which is CPU temperature, not Core temperature. Core temperature is 5C higher than CPU temperature due to sensor location. Tcase + 5 makes the corresponding Core temperature 79C.

Some stability tests might exceed 80C. Sustained Core temperatures greater than low 80's should be avoided.

CT

 

[Pedro Castro Alves]

There's another thing I need to ask, i tried to OC my i7 rising the Base clock instead of the multiplier (remains x40) so i achieved 4.4Ghz, but when restarted the PC was trying to work but turned of, the max I got was Windows 7 logo loading screen, but after this the PC restarted again. Anynone know why happened it?

 

[CompuTronix]

Overclocking by changing the base clock is not recommended on Core i 2nd, 3rd and 4th Generation processors. This can cause data corruption and stability issues. This is a well known problem, and is discussed in most overclocking guides.

 

[Pedro Castro Alves]

Overclocking by changing the base clock is not recommended on Core i 2nd, 3rd and 4th Generation processors. This can cause data corruption and stability issues. This is a well known problem, and is discussed in most overclocking guides.

I don't know so much abou the new intel gen but I heard some issues caused by C's States with some PSU's. I turned on all C states in BIOS, so any chance that whats happend was C states fault?

Im using a CX600

 

[CompuTronix]

No. Once again, you should NOT overclock by changing the base clock. It definitely causes problems.