OCing i7-4770k at 4.0GHz high temps

mahmouds12 · Apr 12, 2014

my system is as follows:
CPU: i7 4770k
MB: asus z87-pro
cpu cooler: CoolerMaster Seidon 120XL (water cooler)
VGA: GTX 770 EVGA
PSU: Thermaltake TR2 RX 1000W
midtower thermaltake case

OC settings from BIOS
AI overclock tuner=XMP
CPU core ratio: Sync all cores at core ratio limit= 40
CPU core voltage: Manual mode at 1.14v

used 3ds max to render high resolution frame for 6 hours using 100% cpu at 4000mhz for each core

I monitored performance using OCCT>
core 0 : max temp =86c
core 1 : max temp =88c
core 2 : max temp =85c
core 3 : max temp =78c

max vcore reached = 1.2v

from what i read in the forum... i think these temperatures are very high for OCing at 4000mhz only with a watercooler... but i can't know the reason

Also I want to know why core-3 temp. is lower than the other cores by about 10c??

Shneiky · Apr 12, 2014

Looks like the cooler was not seated properly or/and there is too much/not evenly spread thermal compound. Try resenting the cooler to the CPU.

mahmouds12 · Apr 12, 2014

Shneiky :

i already tried this
I removed the cpu cooler from the motherboard and tried to spread the thermal paste with my finger... but i think i made it worse and i don't have new thermal paste now... then I re-assembled the cpu cooler again on the mb... and nothing changed.... temp are still high!

If i get a new thermal paste and put it... will it make any difference??

Shneiky · Apr 12, 2014

You ALWAYS clean the thermal paste if you lift the cooler off the CPU. Take 90% or higher spirit/alcohol with no oils (or at least less than 5% oils) and clean both the cpu and the cooler from any thermal compound. Then apply a thing, almost transparent layer of the paste by spreading it with a business card (bare fingers make things worse, because of the oil on your finger, and spreading with a glove does not give very even layer) or place a pea sized blob in the center and press. I personally use the spread card method. If you have too much paste - it becomes an isolator.

mahmouds12 · Apr 12, 2014

Thanks... I'll try this tomorrow isA
I watched some videos on how to clean the cpu and put paste using the pea method...
will try it and tell you if there's any differences in temps

do u suggest specific brand for the thermal paste to buy?
i watched a video which suggested Arctic Silver 5 or Tuniq ... what do u think?

Shneiky · Apr 12, 2014

I suggest any non-conductive compound. Since conductive compounds may damage components if it leaks on the motherboard for example. You don't need to fork you for a 20 bucks paste.

The Arctic Silver 5 is a very good compound. But be very careful - it is electrically conductive, so be wary not to get any on the CPU socket or on the motherboard.

mahmouds12 · Apr 13, 2014

I got Thermaltake TG-2 thermal grease.... that's what i could find
anyway I cleaned the cpu and the water cooler and applied the thermal paste using pea method... i re-attached the cpu cooler but this time rotated at 90 degrees

now i tried the same test of rendering on 3ds max the same scene and the temps is approx the same if not higher :S

Shneiky · Apr 13, 2014

Did you tighten it up properly? Is the fan on the radiator spinning?

mahmouds12 · Apr 13, 2014

yes it's tighten properly and the fan on the radiator is spinning...

I also tried now to put the stock intel cpu fan to check the temps with the same settings...

I got these temps

core 0 : max temp =90c
core 1 : max temp =92c
core 2 : max temp =89c
core 3 : max temp =81c

Baralis · Apr 13, 2014

I am also having a high temperature issue with my 4770k. I have reseated and reapplied it and have done this enough times over the years to feel confident that I am doing it correctly. Unfortunately I believe it isnt my improper installation that is the culprit but instead a poor integrated TIM installation from Intel. The only solution is probably delidding. Perhaps you are suffering the same bad luck.

mahmouds12 · Apr 13, 2014

Baralis :

did u resolve the temp problem by deliding??
I heard that deliding is not an easy task... and can damage the cpu??

Baralis · Apr 13, 2014

mahmouds12 :

I have not attempted to delid it yet. I will probably wait until my warranty period is over as it will void any warranty and while my temperatues are high they are still within the safe zone when I use it for the typical things that I do.

Stress tests or F@H on the other hand will cause it to hit upper 80's+. I will just avoid doing much of either until I have delided the thing.

mahmouds12 · Apr 13, 2014

Thank God... After trying to modify things and playing around I was able to reduce some degrees
What I did is
1- I removed the whole cpu cooler unit (Seidon 120xl) including the radiator and the 2 fans
2- removed the upper exhaust fan
3- cleaned the cpu and the cpu cooler copper part... then added thermal paste (Pea method) and fixed the cpu cooler
4- Now the important part..
instead of attaching the radiator and fans at the back of the Case... I attached it to the top as an exhaust
5- I then took the top fan... and put it on the back of the Case as an intake
6- Also in the bios --> monitor--> I set all fan settings to turbo

now I tried to test again by rendering the 3ds max scene an here's the results

at oc 4000mhz and vcore 1.14
cores temperatures are at mid 60s degrees instead of mid 80s !!!

Here's a snip for the OCCT while rendering

and here's a photo for my desktop and fans and cooler arrangements

Thanks a lot for the Help Shneiky
Thanks a lot Baralis

Hope this post would help someone having a similar problem

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