CPU Temperature Concerns

[Valena]

Hey all,

I just built a new computer and I'm a little concerned about some of the CPU temps I'm reading. My hardware:

Mobo: Asus Prime Z270-A
CPU: i7-7700K
GPU: Gigabyte GeForce GTX GV-N 1080 G1
PSU: Corsair HXi Series 1200 Watt (a lot, I know)
RAM: G.Skill Ripjaws V Series 16GB DDR4
Cooler: Noctua DH-15 (I loved the DH-14 on my older build)
OS (not sure this matters): Windows 10 Home 64 bit

So my CPU temps have been fluctuating a lot, even while doing fairly mundane tasks such as opening new browser windows or playing back a youtube video. Right now, while my system is mostly idle, my cores are running at around 27 degrees celsius, but when I open new browsers or try to watch a video they shoot up into the 30s and 40s very quickly, and when I play Overwatch my temps creep up to 60 or 70.

I've already done a few things. I've installed a second fan on my Noctua cooler (it should have been there to start with, I know.), I changed the configuration so that my cooler blows towards the rear exaust fan in my case instead of straight up, I tightened the cooler as far as I could, and I've added a little more thermal paste to my CPU since when I took off the cooler, I saw that the thermal paste was thin enough to see the CPU through. I only added a little bit though.

So I'm wondering, why the sudden spikes during regular internet browsing? And is it okay to run at 65 or 70 degrees while running a game like Overwatch?

 

[timeconsumer]

Is your CPU overclocked? If so the readings don't surprise me that much, even with that big cooler.

If not, it's a little warmer than I would expect for a DH-15, but still very safe. It could be from a few different factors like the airflow in your case.

You can see an example of the temps from this cooler on a 4770K here: https://www.techpowerup.com/reviews/Noctua/NH-D15/6.html

The reason why it shoots up in temp from idle is because you are giving it more voltage once it gets out of idle.

 

[MrN1ce9uy]

It looks normal. People with smaller coolers see temps in the upper 80s. The 7700K runs warmer than previous generations.

 

[Valena]

Thank you for clarifying, friends!

My CPU is not currently overclocked, but since making the adjustments I mentioned in my OP my temps are running much cooler.

Thanks for making me feel better