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CPU Temps Get Hot REALLY FAST When Playing Games For a Few Minutes!

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September 8, 2014 5:23:45 PM

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

The highest I've seen it go is 80 and I was only playing a game for about 10 minutes!

Can anyone tell me why?

Thanks in advance! :) 

P.S. I've got a few fans in my PC as well as a stock CPU fan. I don't overclock..
I use CPUID monitor to check my temps.

More about : cpu temps hot fast playing games minutes

a b à CPUs
September 8, 2014 5:34:44 PM

Not enough info. Please post your system specs including ambient temperature.
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September 8, 2014 5:40:55 PM

Nvidia GTX 780 6GB
Intel Core I7 4790K
16gb ddr3 ram
Gigabyte Z97-HD3 mobo
Windows 7 Ultimate 64bit


What is ambient temperature? Temps when I'm not playing games? About 35-40c
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a b à CPUs
September 8, 2014 5:43:27 PM

More info will be needed. Even without the info here's a few things you might try.

- Reduce the temperature of the entire room
- Replace the CPU cooler (especially if you're using the stock cooler)
- Replace the thermal paste (go find a guide about applying it properly, many people use too much)

When you give us more info we can help more.
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September 8, 2014 5:48:53 PM

noahhicks said:
More info will be needed. Even without the info here's a few things you might try.

- Reduce the temperature of the entire room
- Replace the CPU cooler (especially if you're using the stock cooler)
- Replace the thermal paste (go find a guide about applying it properly, many people use too much)

When you give us more info we can help more.


I'm not really sure what more info I can give..
Temp of the room is about normal.
PC is brand spanking new so the Thermal paste and CPU cooler are new out of the box!
CPU is running at 4.00GHz

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a b à CPUs
September 8, 2014 6:30:35 PM

Check the stock cooler if there is thermal paste.
If yes, then check if it is running.
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September 8, 2014 6:45:19 PM

iamlegend said:
Check the stock cooler if there is thermal paste.
If yes, then check if it is running.


Yeah,there's pre-applied thermal paste and the fan is on.
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a b à CPUs
September 8, 2014 6:56:55 PM

You did not overclock right? Is there an OC genie in the board? if there is have you pressed it? Or have you enabled OC genie in the BIOS?
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September 8, 2014 7:04:22 PM

iamlegend said:
You did not overclock right? Is there an OC genie in the board? if there is have you pressed it? Or have you enabled OC genie in the BIOS?


I haven't chnaged anything in the BIOS. I had a friend make it for me so I'm not sure if he did,I'm 75% he didn't tho.
I even double checked and loaded the default BIOS settings.
My intel core i7 4790k is at 4.00GHz tho..
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a b à CPUs
September 8, 2014 7:12:25 PM

Thus your motherboard have CPU fan control? can you see the fan performance?
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a b à CPUs
September 8, 2014 8:03:17 PM

80C sounds totally normal and expected to me for a 4790K on the stock cooler. I don't see the problem. If you start hitting >95C you have a problem, till then you're fine. You can drop temps 10-20C with a $20 HSF. Just about any 90mm tower with 3 heatpipes will do the trick.
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September 9, 2014 5:02:19 AM

iamlegend said:
Thus your motherboard have CPU fan control? can you see the fan performance?


Yeah,the fan(s?) go really fast when the temps get high.
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September 9, 2014 5:03:43 AM

mdocod said:
80C sounds totally normal and expected to me for a 4790K on the stock cooler. I don't see the problem. If you start hitting >95C you have a problem, till then you're fine. You can drop temps 10-20C with a $20 HSF. Just about any 90mm tower with 3 heatpipes will do the trick.


That's what scares me tho... the temps don't tend to stay at an idle number,it just just keeps going up.
If I was to keep playing at 80c,it would just keep going up beyond that. :( 
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a b à CPUs
September 9, 2014 5:32:46 AM

Chart your temps and see what happens while you play. Keep in mind that max cooling demand (highest RPM on the HSF) won't kick in until you're reaching near the thermal margin limits. The higher the core temp, the more temp differential there is, and the more the HSF can dissipate. The i7-4790K should be expected to run right at the edge of thermal margins on the stock cooler, that was the whole point, they pushed as far as they could go on the stock power envelope for the socket.

The chip won't kill itself. When it runs out of thermal margin it will throttle itself. Nothing wrong with that. If you want to adjust the CPU cooling policy you can do so in BIOS. Set the PWM fan control to something more sensitive or to a "performance" mode. This will kick up the fan to higher RPMs for lower reported temps.

If the stock HSF truly can't keep up, the only reason would be that the case is not adequately ventilated for the thermal load. Assuming your GTX780 is the type that exchanges air inside the case (non-squirrelcage fan), then you have approximately 300-400W worth of peak thermals inside your case that needs to be swept away at a good pace to keep the charge air for your CPU HSF at a low enough temp to function properly. If you're running all that with just 1-2 case fans you're going to have problems.

What case is this all installed in and how many of what sort of fans?
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September 9, 2014 5:42:14 AM

mdocod said:
Chart your temps and see what happens while you play. Keep in mind that max cooling demand (highest RPM on the HSF) won't kick in until you're reaching near the thermal margin limits. The higher the core temp, the more temp differential there is, and the more the HSF can dissipate. The i7-4790K should be expected to run right at the edge of thermal margins on the stock cooler, that was the whole point, they pushed as far as they could go on the stock power envelope for the socket.

The chip won't kill itself. When it runs out of thermal margin it will throttle itself. Nothing wrong with that. If you want to adjust the CPU cooling policy you can do so in BIOS. Set the PWM fan control to something more sensitive or to a "performance" mode. This will kick up the fan to higher RPMs for lower reported temps.

If the stock HSF truly can't keep up, the only reason would be that the case is not adequately ventilated for the thermal load. Assuming your GTX780 is the type that exchanges air inside the case (non-squirrelcage fan), then you have approximately 300-400W worth of peak thermals inside your case that needs to be swept away at a good pace to keep the charge air for your CPU HSF at a low enough temp to function properly. If you're running all that with just 1-2 case fans you're going to have problems.

What case is this all installed in and how many of what sort of fans?


I have a Zalman Z11 Plus: http://www.amazon.com/Zalman-High-Performance-Tower-Cas...

I'm just using the stock fans atm.

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September 9, 2014 8:11:31 AM

Can anyone help because games are now unplayable?!
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a b à CPUs
September 9, 2014 8:25:31 AM

Make sure both case fans are running, consider adding more. Plan on getting an aftermarket HSF for the CPU.
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September 9, 2014 8:37:07 AM

mdocod said:
Make sure both case fans are running, consider adding more. Plan on getting an aftermarket HSF for the CPU.


All fans are running but they don't seem to be doing much,my window is wide open atm blowing cool air in.
Played a game for 4 minutes and temps were in there 80s in each core. GPU went up to like 60.
Is there something wrong with the parts because everything is brand spanking new with no dust on them and case has about 4-5 fans (ranging from small ones on case sides and 2 120mm fans in the middle of the PC and a bigger one at the front...think there's one at the back aswell...)

Is CPUID monitor giving me a false reasding?
Should I ring the company I bought the parts off?
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a b à CPUs
September 9, 2014 4:28:28 PM

I have had the same experience as for my gaming rig went up to 90C.
What I did was overclocking using the OC genie button while running with a discrete GPU. From then on I cannot enter windows.

What I did was I removed the dGPU and boot up again and disabled the OC genie function. Now I use the BIOS in OCing.

For your case, try to remove the dGPU and look if the problems solved.
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September 10, 2014 5:32:25 AM

iamlegend said:
I have had the same experience as for my gaming rig went up to 90C.
What I did was overclocking using the OC genie button while running with a discrete GPU. From then on I cannot enter windows.

What I did was I removed the dGPU and boot up again and disabled the OC genie function. Now I use the BIOS in OCing.

For your case, try to remove the dGPU and look if the problems solved.


This sounds interesting...
Could you give me step-by-step instructions?
Thanks :) 

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a b à CPUs
September 10, 2014 8:26:45 AM

60C on the GPU and 80C on the CPU, you're not anywhere near the thermal limits of either. What exactly is the problem here?
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September 10, 2014 1:25:20 PM

I played Dead Rising 3 on max settings,1080p for 10 minutes.... each cpu core was at 80-90c!
I can't live like this! Constantly in-fear while playing games that my system will spontaneously combust!
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a b à CPUs
September 10, 2014 4:24:53 PM

Can you give a screenshot of your system using CPUZ?
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a b à CPUs
September 10, 2014 11:46:58 PM

Lots of CPUs run very close to their thermal margins on stock cooling. If you don't like it, swap the cooling.
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September 11, 2014 6:09:16 AM

iamlegend said:
Can you give a screenshot of your system using CPUZ?


Sure,I'll go take it,brb ;) 
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September 11, 2014 6:24:22 AM

iamlegend said:
Can you give a screenshot of your system using CPUZ?


On Desktop With Google Chrome Open (Core speed wasn't idle):
http://imgur.com/oyABki7

AFTER 3 and a Half Minutes of Dead Rising 3 (Max Settings,1080p):
http://imgur.com/oh04DmE
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a b à CPUs
September 11, 2014 6:38:08 AM

It's weird, having an i7 which goes up to 80C.
I think we should try a new cooler just like what they have suggested above. If your temps will be ok then it is the cooler that has a problem.
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September 11, 2014 6:39:12 AM

iamlegend said:
It's weird, having an i7 which goes up to 80C.
I think we should try a new cooler just like what they have suggested above. If your temps will be ok then it is the cooler that has a problem.



Would it by any chance be faulty? Should I ring Amazon and return it for a new one?
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a b à CPUs
September 11, 2014 6:50:21 AM

You did not even OC. Last try to remove the cooler and check the blades and then install it again.
Remember to clean and reapply thermal paste again.
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September 11, 2014 6:54:28 AM

iamlegend said:
You did not even OC. Last try to remove the cooler and check the blades and then install it again.
Remember to clean and reapply thermal paste again.


PC is brand new so the stock thermal paste should still be ok,right?
I've only had the PC up and running for about 4 days now :\
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September 11, 2014 7:40:30 AM

Stock cooler is not good but it sounds like your cooler is not on the CPU properly... I would re-seat the cooler on the CPU with some MX-4 paste. This set up should be running low 30's idle and max about 50/60's in games. Got to be the cooler not on properly.

Also i can't see your temps... could you post image of temps via realtemp or coretemp please one in idle one under load.
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September 11, 2014 7:50:09 AM

vMax said:
Stock cooler is not good but it sounds like your cooler is not on the CPU properly... I would re-seat the cooler on the CPU with some MX-4 paste. This set up should be running low 30's idle and max about 50/60's in games. Got to be the cooler not on properly.

Also i can't see your temps... could you post image of temps via realtemp or coretemp please one in idle one under load.


Sure :) 
How do I take screenshots of CPUID HWmonitor? I googled it but couldn't find anything. :( 
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September 11, 2014 7:52:54 AM

Shark Dentist said:
vMax said:
Stock cooler is not good but it sounds like your cooler is not on the CPU properly... I would re-seat the cooler on the CPU with some MX-4 paste. This set up should be running low 30's idle and max about 50/60's in games. Got to be the cooler not on properly.

Also i can't see your temps... could you post image of temps via realtemp or coretemp please one in idle one under load.


Sure :) 
How do I take screenshots of CPUID HWmonitor? I googled it but couldn't find anything. :( 


use snipping tool in windows 'metro and the search snipping tool' or screen print on your keyboard 'prt Scr'
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September 11, 2014 7:57:50 AM

Snipping tool is the easiest, just go to metro in windows and use search and type in snipping tool. That will bring the tool to your desktop and start it. You can then cut an image of the realtemp on your desktop and then post.

Like this

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September 11, 2014 8:09:26 AM

vMax said:
Shark Dentist said:
vMax said:
Stock cooler is not good but it sounds like your cooler is not on the CPU properly... I would re-seat the cooler on the CPU with some MX-4 paste. This set up should be running low 30's idle and max about 50/60's in games. Got to be the cooler not on properly.

Also i can't see your temps... could you post image of temps via realtemp or coretemp please one in idle one under load.


Sure :) 
How do I take screenshots of CPUID HWmonitor? I googled it but couldn't find anything. :( 


use snipping tool in windows 'metro and the search snipping tool' or screen print on your keyboard 'prt Scr'


Desktop with google chrome open: http://imgur.com/QI3j40s

Not going to record after few minutes of gameplay because I'm worried about the temps getting that high again,I'm not playing games until I sort this problem out. The temps on each core of the CPU go to 80-90c, and the GPU goes to about 64-ish.

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September 11, 2014 8:25:00 AM

Shark Dentist said:
vMax said:
Shark Dentist said:
vMax said:
Stock cooler is not good but it sounds like your cooler is not on the CPU properly... I would re-seat the cooler on the CPU with some MX-4 paste. This set up should be running low 30's idle and max about 50/60's in games. Got to be the cooler not on properly.

Also i can't see your temps... could you post image of temps via realtemp or coretemp please one in idle one under load.


Sure :) 
How do I take screenshots of CPUID HWmonitor? I googled it but couldn't find anything. :( 


use snipping tool in windows 'metro and the search snipping tool' or screen print on your keyboard 'prt Scr'


Desktop with google chrome open: http://imgur.com/QI3j40s

Not going to record after few minutes of gameplay because I'm worried about the temps getting that high again,I'm not playing games until I sort this problem out. The temps on each core of the CPU go to 80-90c, and the GPU goes to about 64-ish.



That does not look too bad. Can you do me a favor and download realtemp and then take a screenshot of that in idle. Your idle temps are currently at 30'ish in degrees which is right for your cooler on the i7 4790k
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September 11, 2014 8:36:42 AM

vMax said:
Shark Dentist said:
vMax said:
Shark Dentist said:
vMax said:
Stock cooler is not good but it sounds like your cooler is not on the CPU properly... I would re-seat the cooler on the CPU with some MX-4 paste. This set up should be running low 30's idle and max about 50/60's in games. Got to be the cooler not on properly.

Also i can't see your temps... could you post image of temps via realtemp or coretemp please one in idle one under load.


Sure :) 
How do I take screenshots of CPUID HWmonitor? I googled it but couldn't find anything. :( 


use snipping tool in windows 'metro and the search snipping tool' or screen print on your keyboard 'prt Scr'


Desktop with google chrome open: http://imgur.com/QI3j40s

Not going to record after few minutes of gameplay because I'm worried about the temps getting that high again,I'm not playing games until I sort this problem out. The temps on each core of the CPU go to 80-90c, and the GPU goes to about 64-ish.



That does not look too bad. Can you do me a favor and download realtemp and then take a screenshot of that in idle. Your idle temps are currently at 30'ish in degrees which is right for your cooler on the i7 4790k


http://imgur.com/JEpFSbJ

My idle temps aren't the problem tho, the problem is how quick the temps get to 90c after only playing the game for 3 minutes. It wouldn't even stop at 90,it would just keep going up and up.
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September 11, 2014 8:38:48 AM

OK lets test that. Download Aida64 and under tools do the stability test. Keep realtemp on and let me know how hot ot gets. If it goes over 90 degrees stop the test.
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September 11, 2014 8:58:57 AM

vMax said:
OK lets test that. Download Aida64 and under tools do the stability test. Keep realtemp on and let me know how hot ot gets. If it goes over 90 degrees stop the test.


Should I use the default settings of the test (CPU stress,FPU stress,memory stress,cache stress, or choose to only test the CPU?
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September 11, 2014 9:13:36 AM

Just use the stress CPU, stress fpu and stress cache. basically the first three should be ticked.
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September 11, 2014 9:15:58 AM

If all goes well it should not go over 80 degrees. Temps should bounce somewhere between 50's and 70's.
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September 11, 2014 9:56:13 AM

OK that about does it. I can only think that your CPU cooler is not seated correctly as you should not be getting those temps under load. I would re-seat your cooler with some new thermal paste (MX-4 preferably) and better yet get a better cooler than the one that came with the CPU. A H80i or H100i or similar AIO (all in one water cooler) would be best or a noctua dh-15. Sorry that's all i can come up with.
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September 11, 2014 9:58:26 AM

Did you put the cooler onto the CPU?
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September 11, 2014 10:01:06 AM

Also have you checked whether the cooler is on properly. if it is the one that came with the cpu, check each one of the 4 latches that hold it onto the CPU and motherboard to make sure that they are on tight as this cooler should still be able to handle things in gaming and should not go anywhere near 70 degrees.
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September 11, 2014 10:20:40 AM

vMax said:
OK that about does it. I can only think that your CPU cooler is not seated correctly as you should not be getting those temps under load. I would re-seat your cooler with some new thermal paste (MX-4 preferably) and better yet get a better cooler than the one that came with the CPU. A H80i or H100i or similar AIO (all in one water cooler) would be best or a noctua dh-15. Sorry that's all i can come up with.


Thanks for the help :) 
I'm pretty sure I placed the fan correctly. Think I might just go ahead and get these:
http://www.amazon.co.uk/gp/product/B0068OI7T8/ref=ox_sc...
http://www.amazon.co.uk/gp/product/B003VRBPAI/ref=ox_sc...
and update my BIOS.

How much cooler will my system be with these?

+ Are you sure there isn't a problem with my CPU? Should I return it?
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September 11, 2014 10:36:58 AM

Excellent choice... make sure that you get some good TIM i.e MX-4 or something similar.

Your temps should then be in the mid 20 to late 20 degrees at idle and at 100% max CPU load in AIDA64 or Prime95 no more than 65 degrees like this.

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September 11, 2014 10:51:21 AM

Nothing wrong with CPU... still sure that the heatsink is not on properly as in the latches that attach to the cpu and motherboard.... nothing to do with the fan bit, but your choice above on the new cooler is great and will make a difference.
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September 11, 2014 12:01:17 PM

vMax said:
Excellent choice... make sure that you get some good TIM i.e MX-4 or something similar.

Your temps should then be in the mid 20 to late 20 degrees at idle and at 100% max CPU load in AIDA64 or Prime95 no more than 65 degrees like this.



sounds good! :) 
And can I just use the thermal paste that comes with the evo 212? or best to buy better paste?
+What's better? Artic 5 silver thermal paste (one I linked) or Silver MX-4?
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