[Intel Core i7 3770k] My CPU overheats instantly to 100 C while encoding videos

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mariosx

mariosx

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Nov 23, 2010
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Hello.
I have a big major problem.
My CPU overheats instantly to 100 C while encoding videos from 50 C (idle).

My system specs are these:
Case: Coolermaster HAF 932
M/B: Gigabyte Z77X-D3h
CPU: Intel Core i7 3770K
CPU Cooler: Stock or http://www.scythe-usa.com/product/cpu/023/scmn1000_detail.html (both same results)
RAM: Kingston 2x4GB HyperX Beast 2133MHz CL11
VGA: Saphire HD6870 1GB

I applied Arctic Silver 5 thermal paste following the instructions on this manual http://www.arcticsilver.com/intel_application_method.html#
(Vertical Line)

Please note that everything runs at default clock speed (default UEFI/BIOS options)

I'm really really out of options and I do not know what else should I try

Programs used while encoding videos:
Xilisoft Video Converter Ultimate.
AnyDVD

 
Solution
n1ghtr4v3n
stock coolers are proven to be ineffective at stock speeds when it comes to premium loads that uses all the cores and threads.

hyper 212 evo will for sure drop the intended temp's at least 10-20C without any problem. (for stock speeds and turbo on)

as told before, turbo actually pushes the limits of the cpu and when turbo kicks in, your cpu is not operating with stock speed nor stock voltage. especially if you consider that all cores and threads are operational 90C-100C will be reached easily.

why do you think intel's official data sheets shows dye temp limit to 100C ? :)

stock coolers would be fine only on casual loads on stock speeds.
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n1ghtr4v3n

n1ghtr4v3n

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Feb 27, 2013
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stock speeds doesnt mean that you are running it actually at 3.5GHz (stock) frequency all the time as your CPU has integrated turbo boost.

while encoding, cpu is stressed as much as prime95 or intelburntest and also since it has lots of workload turbo kicks in as well as with higher voltage and your cpu runs at 3.9GHz. (which is integrated temporary overclock by your cpu)

so, your stock cooler is not enough, especially if its not tight enough (manufacturing fault) or came with wrong application of thermal paste (can be your fault or factory fault)

I would advice you to either turn of turbo
or
Re-apply thermal paste and make sure cooler is tucked in tight enough
or
Go to bios, change the "auto" voltage setting to either "normal" or "a value of your choice" which doesnt push the tdp too high.
or
Just buy a cheap&effective Cooler Master Hyper212Evo.

It definitely worth if you are using it to encode with turbo mode on or overclock yourself.

Good luck!
 
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mariosx

mariosx

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Nov 23, 2010
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So tightness is my problem...
It's true, the leg mounts are crap...
So tighter is better?
Is hyper 212 that good?
I have seen it being recommended to many other sites as well
 
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mariosx

mariosx

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Nov 23, 2010
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Alright guys.
After all the problem was indeed the Turbo Function which caused my CPU to overheat.
However I've still got problems, it still reaches 75-85 C while encoding videos and I do not think that's normal.

So I've been thinking: Can you recommend me some CPU Coolers for my CPU which are value for money?
Highest budget 80€.
Preferred stores: amazon.co.uk, ebay.com or ebay.co.uk
Please note: I intend to spend all 80€ for a CPU cooler, what I care about is the perfomance

Thanks a lot for your replies


EDIT: Please note: I have read about that the stock cooler is sufficient for stock clock speeds.
However, I intend to enable the turbo function on in the future and overclock a bit and also some leg mounts in stock cooler are broken
 
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bambiboom

bambiboom

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Apr 7, 2012
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mariosx,

Rendering, encoding, some kinds of effects processing are among the few tasks that can use all the cores / threads on the system and the CPU can run very hot. When I run renderings on a dual Xeon quad core, I use 12 of the 16 threads and the CPU's can be running at up to 93 C and the RAM (8 slots) is DDR2 which usually runs at about 70C, can go up to 83-85C.

You may want to look around on forums for you applications and see if the temperatures are normal under fill load. I used this system for three years until I learned the temperatures were so high (when I added the 2nd CPU), panicked, and then I read that these temperatures were normal.

However, as you mentioned using overclocking in the future, the stock cooler will definitely not be sufficient. You may as well have peace of mind and add a reliable liquid CPU cooler. I'm not an expert on these- I've never used them, but this one is highly rated >

http://www.amazon.co.uk/Corsair-CWCH60-Performance-Radiator-All-In-One/dp/B004MYFOE2/ref=sr_1_1?ie=UTF8&qid=1373234419&sr=8-1&keywords=CORSAIR+Hydro+series+H50

> Corsair CWCH60 Hydro Series H60 High Performance 120mm Radiator All-In-One Liquid CPU Cooler > £55.99

Liquid coolers are the favorite of the overclocking set, a club we Xeon users are never allowed to join.

The adverts say liquid coolers will have your system run "quieter" but 30dB reads as quite a lot. If you are quite near the system, you may like to check on the noise specifications and compare to those for the stock cooler you now have- make certain you aren't bothered.

Perhaps others will have more informed suggestions on this type of cooler.

Cheers,

BambiBoom

[ Dell Precision T5400 > 2X Xeon X5460 quad core @3.16GHz > 16 GB ECC > Quadro. FX 4800 (1.5GB) > WD RE4 / Segt Brcda 500GB > Windows 7 Ultimate 64-bit > AutoCad, Revit, Solidworks 2010, Sketchup Pro, Corel Technical Designer, Adobe. CS4 MC, WordP Office, MS Office ]
 
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n1ghtr4v3n

n1ghtr4v3n

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Feb 27, 2013
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stock coolers are proven to be ineffective at stock speeds when it comes to premium loads that uses all the cores and threads.

hyper 212 evo will for sure drop the intended temp's at least 10-20C without any problem. (for stock speeds and turbo on)

as told before, turbo actually pushes the limits of the cpu and when turbo kicks in, your cpu is not operating with stock speed nor stock voltage. especially if you consider that all cores and threads are operational 90C-100C will be reached easily.

why do you think intel's official data sheets shows dye temp limit to 100C ? :)

stock coolers would be fine only on casual loads on stock speeds.
 
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Solution
n1ghtr4v3n

n1ghtr4v3n

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Feb 27, 2013
738
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11,360


I recently tried on 2 different systems. Both systems reached above 95C easily with stock cooler when turbo is on and prime95 running.
Now both of them are on aftermarket coolers. keeping temps less than 80C under full load with overclocked speeds...
 
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