i7 4770k unnervingly hot temps

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Dan Jensen

Dan Jensen

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Hi folks of Tom's Hardware!

I have recently built a computer, and these are the full specs:

Corsair RM850W PSU
ASUS MAXIMUS VI HERO, Socket-1150
Kingston DDR3 HyperX Beast 8GB 2400MHz
Intel Core i7-4770k
Samsung SSD 840 EVO 500GB BK OEM
Noctua NH-U14S CPU Cooler
Gigabyte GeForce GTX Windforce 780 3GB
Corsair Carbide 500R Midi Tower

And what I am experiencing, is that my CPU is 30-38 celsius degrees when idling - having just booted up the PC.

If I run a Prime95 standard stress-test they IMMEDIATELY launch up to 60-70...

Is this bad? I bought the "expensive" (to me) CPU cooler, to avoid overheating my CPU! So I am slightly scared of me having installed the CPU cooler wrong? I -really- hope not, because I was scared of doing anything wrong while installing the entire computer, so I would hate to have to reseat everything.. Do you think it is a normal temp, or is this definitely wrong?

Thanks up front.. :)

Dan
 
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Ambient temps will make a big difference... But my cpu cooler is slightly better than yours. So that will slightly offset the OC temp increase and if you are seeing temps in the 60-70c range you are below me... i see like 68-72c on prime95. Your temps are perfectly fine and normal for i7-4770k nothing to worry about.
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Dan Jensen

Dan Jensen

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My friend bought the exact same build, but his CPU is idling at about 20-27.. could this all be because of a different ambient temperature? His GTX 780 is also constantly about 5-10 celsius degrees lower than mine.
 
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Derza10

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My temps are ~30c idle and prime95 ~70c but i'm OC'd to 4.4 and use the Noctua NH-14D and i believe its ~2-5c cooler. Your temps seem about right... Ambient temps make a big difference... when its ~18c in my house my CPU idle temps are around 25c.
 
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Dan Jensen

Dan Jensen

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But if yours is overclocked a -lot- compared to my standard speed, isn't mine very warm, if mine has the same temperature? Or again - does it all result in the ambient temperature?

Thanks so far for both of you guys help. :)
 
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Derza10

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Ambient temps will make a big difference... But my cpu cooler is slightly better than yours. So that will slightly offset the OC temp increase and if you are seeing temps in the 60-70c range you are below me... i see like 68-72c on prime95. Your temps are perfectly fine and normal for i7-4770k nothing to worry about.
 
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LExSLAYER1

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Those temps look fine to me. The idle temp is a little warm but that could just have to do with the air flow in your case as well as ambient air like others have suggested. Make sure that the fans in your case are pushing air in a direction that it will eventually make it to your exhaust. Also make sure that there is air passing over your cpu/gpu. I've seen differences as high as 10 degrees Celsius when rearranging my fans.
 
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Dan Jensen

Dan Jensen

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Wow, Lex that is quite a difference.. But how do I rearrange fans? I have 3 built-in fans in the cabinet, actually 4.. 1 large on the side, 1 in the back, and 2 at the front near HDD/SSD's, but I think they are all stuck in place? (Sorry for sounding like such an amateur, this is my first build)

PS: Thank you so much Derza.. Is calming me down a lot.. :)
 
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LExSLAYER1

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I'd say so. I have intake coming in from the from and the top and the front and have it blowing out the back of my case. The only reason that I'm not also using the top as an intake is because I have a radiator up there and I want fresh air going through it. The positive air pressure helps all of the air escape through my exhaust and I haven't had much issues.
 
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Dan Jensen

Dan Jensen

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Fantastic! Thank you guys for your awesome guidance! You have been truly helpful!!! Just to finalize this - 60-70 degrees during a prime95 stress test is FINE, right?
 
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LExSLAYER1

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Yes, If you are ever unsure about your temps, a easy check (Not all ways bullet proof) way of checking how hot they are is to use speccy. http://www.piriform.com/speccy

The software will list the temps of your system and display the temps in a color coded fashion. e.g. green for low temps and red for hot temps and colors in between for moderate temps.


Sometimes manufacturers will have normal operating temps listed on their websites too.
 
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