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CPU Temps Get EXTREMELY Hot Very Fast When Playing Games! Help!

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Last response: in Components
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September 10, 2014 2:34:25 PM

Whenever I play a game my CPU temps get really really hot super fast for some reason.. 80-90c hot!

The highest I've seen it go is 90 on 1 core and 85-ish on the other cores (it would have kept going up tho) and I was only playing a game for about 10 minutes on max settings!
SPECS:
Nvidia GTX 780 6GB
Intel Core I7 4790K
16gb ddr3 ram
Gigabyte Z97-HD3 mobo
Windows 7 Ultimate 64bit
Zalman Z11 Plus case

PC is brand new so there's no dust. I'm using stock CPU and case fans with pre-applied thermal paste on the stock intel core i7 4790k fan. The CPU is at 4.00GHz and I haven't overclocked it.
Fans are all on and running. (there's about 6 stock fans in the Zalman Z11 plus case ranging from a small fan on each case door,2 in the center of the PC blowing in/out air, and a bigger fan (I think it's bigger) at the front,etc. The room is about normal temperature. The fans go really fast when the temps get high. GPU goes to about 60c,I'm guessing because of all the hot air the CPU is producing.

Can anyone tell me why? I just bought a 1500 euro PC and can't play any games because I'm afraid my PC will burst up into flames! (the games run fine tho..my prob is the heat)

Thanks in advance! :) 

P.S. I use CPUID monitor to check my temps,although I've tried RealTemp

More about : cpu temps extremely hot fast playing games

September 10, 2014 2:38:04 PM

+ I don't really have the money right now to buy a heatsink.
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September 10, 2014 2:45:58 PM

If you spent 1500 bucks on a new PC you should pony up 30 more for a heat sink so your stuff doesn't break.
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September 10, 2014 3:12:03 PM

burdenbound said:
If you spent 1500 bucks on a new PC you should pony up 30 more for a heat sink so your stuff doesn't break.


+1. You're telling me you don't have $30 for a 212 EVO?
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September 10, 2014 3:28:34 PM

burdenbound said:
If you spent 1500 bucks on a new PC you should pony up 30 more for a heat sink so your stuff doesn't break.


I went over budget enough already.
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September 10, 2014 3:29:33 PM

Pondering said:
Update the BIOS. The Gigabyte board BIOS have been updated to run better with the 4790k by lowering the voltage in the F5 bios which mentions the G3258.

bios: http://www.gigabyte.com/products/product-page.aspx?pid=...

bios tool: http://www.gigabyte.com/webpage/20/HowToReflashBIOS.htm...

use the @bios if you don't have a USB drive


Oh this sounds promising! :) 
Could you write me a step-by-step tutorial,please? :)  (I'm an idiot :\ )
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September 10, 2014 3:33:42 PM

I don't have a gigabyte board though however if you have an USB drive. You can load the bios file onto an USB drive and flash it from that in the BIOS. It takes a couple of tries but it is safe since there is a lot of protective and preventative stuff. Look over the motherboard manual and take your time though.
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September 10, 2014 3:46:03 PM

Pondering said:
I don't have a gigabyte board though however if you have an USB drive. You can load the bios file onto an USB drive and flash it from that in the BIOS. It takes a couple of tries but it is safe since there is a lot of protective and preventative stuff. Look over the motherboard manual and take your time though.


I lost my manual :( 
So first I copy the BIOS file to an USB stick. (does CD work?) and then I..?
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September 10, 2014 3:57:34 PM

Essentially download the @BIOS program and the BIOS zip file, unzip it and then open the @BIOS and direct @BIOS to the BIOS file >.<

There is an important part about turning off Hyperthreading in the BIOS (http://www.gigabyte.com/webpage/20/images/utiltiy_atbio...) however I am unsure how to do that as well.

I couldn't find any youtube videos though.
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September 10, 2014 4:02:16 PM

Pondering said:
Essentially download the @BIOS program and the BIOS zip file, unzip it and then open the @BIOS and direct @BIOS to the BIOS file >.<

There is an important part about turning off Hyperthreading in the BIOS (http://www.gigabyte.com/webpage/20/images/utiltiy_atbio...) however I am unsure how to do that as well.


Cool,thanks! :)  I'll give that a shot and return tomorrow if it works. (it's midnight here :\ )
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September 10, 2014 4:05:00 PM

I spent 3 hours trying to update the BIOS on my ASUS Z97 - P. It is just strange quirky things. Might as well get some sleep since once you get the BIOS updated. Things be better but almost everyone gets a new fansink for the 4790k though but the BIOS update should help with the temperature issues a bit.
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September 10, 2014 4:39:22 PM

Pondering said:
I spent 3 hours trying to update the BIOS on my ASUS Z97 - P. It is just strange quirky things. Might as well get some sleep since once you get the BIOS updated. Things be better but almost everyone gets a new fansink for the 4790k though but the BIOS update should help with the temperature issues a bit.


Awesome,you've been a lot of help thanks! :) 
Oh,and how much should I expect my temps to increase? 15-20c?
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September 10, 2014 4:41:09 PM

Oh and on the download page it's asking me for the version... F3,F4 or F5? What should I pick?
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September 10, 2014 6:37:47 PM

Pondering said:
F5. It really depends on what voltage the motherboard is set to at the moment. The other gigabyte mobo that I helped with was set at 1.4 volts - it basically comes pre-overclocked.

Download CPU Z and confirm your motherboard version in the 'Mainboard' tab.

http://www.cpuid.com/downloads/cpu-z/1.70-en.zip
http://www.cpuid.com/softwares/cpu-z.html


Could that be my problem,that the CPU I have now was pre-overclocked? :o 

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September 10, 2014 6:41:01 PM

Nope, the motherboard controls the overclock. The processor is just unlocked or able to be overclocked.

You should probably get some sleep though. The BIOS thing takes like 10 minutes but it feels like an hour.
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September 11, 2014 7:55:53 AM

Am I downloading the Q-Flash utility? Are you sure my motherboard supports it? (Sorry about the numerous questions,I just want to be absolutely positive. :)  )
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September 11, 2014 9:28:34 AM

I highly recommend you flash your motherboard from the bios, the utilities are sketchy at best. Also make sure all your data is backed up because you always run the risk of needing to do a fresh OS install after a bios update.
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September 11, 2014 9:34:30 AM

burdenbound said:
I highly recommend you flash your motherboard from the bios, the utilities are sketchy at best. Also make sure all your data is backed up because you always run the risk of needing to do a fresh OS install after a bios update.


On a scale from 1-10..how difficult is this to do?
Because I'm a bit scared,knowing that I could brick my system. :|

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September 11, 2014 9:36:38 AM

It's not hard at all, especially with the newer bios that all the motherboards have now a day. Just look at the manual and it will tell you how to do it, you will need a thumb drive to place the new bios on.
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September 11, 2014 9:37:48 AM

burdenbound said:
It's not hard at all, especially with the newer bios that all the motherboards have now a day. Just look at the manual and it will tell you how to do it, you will need a thumb drive to place the new bios on.


I don't have a usb stick,will a CD work?
+ Could you link me a YouTube tutorial? :) 

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October 1, 2014 6:59:19 PM

What is your motherboard revision number?

GA-Z97-HD3 (rev. 2.0)
Initial BIOS Version: F6
Core i7-4790K supported since BIOS Version F6

GA-Z97-HD3 (rev. 1.0)
Initial BIOS Version: F3
Core i7-4790K supported since BIOS Version F5

Using a BIOS version that doesn't support the i7-4790K will result in a higher/incorrect Vcore being used. This will result in high CPU temperatures.

Use Q-Flash. It's the safest method. You can even place the BIOS image file on a hard disk drive. A USB flash drive is the preferred method.

I encountered the same temperature problem with my GIGABYTE GA-Z97X-UD5H-BK Black Edition when I installed an i7-4790K on it a couple of weeks ago. The motherboard came with an older BIOS version that didn't properly support the i7-4790K. I saw that the Vcore was running at much higher than the 1.252V that it is suppose to be running with under full CPU load. The latest BIOS version cured the temperature and voltage problem.

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October 1, 2014 7:31:46 PM

ko888 said:
What is your motherboard revision number?

GA-Z97-HD3 (rev. 2.0)
Initial BIOS Version: F6
Core i7-4790K supported since BIOS Version F6

GA-Z97-HD3 (rev. 1.0)
Initial BIOS Version: F3
Core i7-4790K supported since BIOS Version F5

Using a BIOS version that doesn't support the i7-4790K will result in a higher/incorrect Vcore being used. This will result in high CPU temperatures.

Use Q-Flash. It's the safest method. You can even place the BIOS image file on a hard disk drive. A USB flash drive is the preferred method.

I encountered the same temperature problem with my GIGABYTE GA-Z97X-UD5H-BK Black Edition when I installed an i7-4790K on it a couple of weeks ago. The motherboard came with an older BIOS version that didn't properly support the i7-4790K. I saw that the Vcore was running at much higher than the 1.252V that it is suppose to be running with under full CPU load. The latest BIOS version cured the temperature and voltage problem.



This thread is 3 weeks old. I think OP probably solved his problem
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