CPU temps are realy high!

[KaharonCZE]

Hi, I have Intel Core I7 4770K. It is not overclocked and i am cooling it with SilentiumPC Grandis XE1236. I have temps around 60 °C when gaming. When stress testing in Prime95 for around 7mins 30 secs it is around °C, but after that time period CPU temps get realy quickly at around 99 °C and CPU started to thermal throtle (I got my temps with Core Temp when using Prime95 and with MSI Afterburner when gaming). When gaming my temps stay around that 60 °C. My system is in Bitfenix Shadow (with stock fans). It wouldnt be a problem for me if I didn't do some stuff in Unreal Engine 4 which when I calculate lightning can load the CPU at 100% for a long time. I thought this is happening becouse CPU Cooler won't get enough air, becouse my case front doesn't have good enough access too fresh air + it is running through dust filter + that fan is not static pressure fan. So should i get some different fans or is problem somewhere else? Sorry if my English is not perfect it's not my native language.


PC specs:
CPU: I7 4770k
Cooler for CPU: SilentiumPC Grandis XE1236
MOBO: MSI Z87-G45 Gaming
RAM: Kingston Hyperx 16GB 1600MHz CL10 low profile
GPU: MSI GTX 970 Gaming
Storage: Seagate 7200.14 3TB
SSD: Kingston SSDNow V300
Case: Bitfenix Shadow with stock fans (I think those are Bitfenix Spectre)

 

[Ray Tsou]

Did you build this yourself? If so, did you apply the thermal paste correctly? Too much or too little could result in high temps. Also, get a can of compressed air and dust out your pc to lower temps. Clean out the dust filters, and make sure the fan holes are not covered by anything. Place your pc in an open area, so that it can have access to cool, fresh air and vest the hot air out.

 

[CompuTronix]

Do NOT run any versions of 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, such as 28.5, run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces extremely high temperatures. The FPU test in the stability testing utility AIDA64 shows similar 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.html

Run only Small FFT’s for 10 minutes.

Your Core temperatures will test 10 to 20C lower with v26.6 than with v28.5.

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

Thanks,

CT