i7 4790k Temps

TechieWorld

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Dec 25, 2014
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So I am running an i7 4790k and it idles at 35-40 and underload it goes about 55-60. I know those temps are normal. But my question is when i ran Prime95 the temps within a second went above 90+. Also please note I am using a stock cooler. So are the stock cooler not suitable for taking P95 test?

No overclocking done, as of now it is running at stock speed:ange:
 


Prime 95 uses the AVX instruction set. This will heat up your CPU more than anything else. Stock cooling may not be enough for this type of load. That said, you could look at the push pins and make sure they are fully seated. Also if there was a plastic film covering pre-applied TIM, did you remove it?
 
Okay thats good. But my another concern is that sometimes the CPU temps jump to 55-60 even at idle and then again it come backs to normal. So is the case with vcore it is idle at 0.750v and then of sudden it jumps to 1.212v and then again back to normal. Is this okay or should i be concerned? I am using HWMonitor to check CPU temps
 


Yeah i did all that:ange:
 


HWMonitor is not very reliable. Try the utilities that came with your motherboard instead.
 
TechieWorld,

The monitoring utilities provided by motherboard manufacturers on your Driver DVD reads CPU temperature from BIOS, but not Core temperature form the heat sources within the Cores. Thermal code can vary greatly between BIOS suppliers and version updates, and can be wrong by up to 30C. BIOS or CPU temperature may not be accurate.

A single Analog Thermal Diode located in the center under the Cores is used to measure "CPU" temperature, which is the overall temperature of the entire processor. This is not Core temperature.

The Analog value is converted to Digital (A to D) by the Super I/O (Input / Output) chip on the motherboard, then is calibrated to look-up tables coded into BIOS for each socket-compatible processor, and is rarely accurate.

Use Core Temp or Real Temp to measure your Core temperatures.

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 than later versions of Prime95, such as 28.5.

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

CT :sol:
 


Thank you for the help guys. Sorry to reply late. I didn't got the time to test utilities. I ordered a hyper 212 evo let see how things go after installing it. I will take the P95 test after installing it and report back.:ange: