High i7 4790k idle temps

ViciousAxel

Reputable
Sep 22, 2014
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4,510
Hi all,

I recently built a new rig with an i7 4790k cpu and an Asus Maximus VII Ranger mobo. I initially ordered an AMD FX-8 9850 and a Crosshair V, but I changed my mind and so had to send it back for a refund which I'm still waiting on, but in the meantime I went ahead and got the i7 and Ranger.
I was going to get an H100i but since I don't have the refund yet I couldn't afford it and so I thought in the mean time I might as well get the rig put together so I could sort out any teething issues that might arise.

One thing that's been worrying me is the very high idle (and load) temps of the i7. Right now, HWMonitor's reading it at 43*C and Corsair Link is reading it at 42*C. Initially, it would hit around 70*C under load, however it was also sitting at around 50*C idle and so I remounted the stock heatsink (without changing the TIM as I don't have any to hand) and did my best to spread the TIM around with the bottom of the heatsink. Now, I'm getting the cooler idle temps I mentioned earlier but load temps are rocketing up to around 98*C. Intel ARK is saying that the Tcase is 72.72*C. These temps just don't seem right to me, and although this will only be a short term solution, (~1 week) I'm worried there might be a problem with the chip itself.

I've got a Corsair 750D case with the stock fan setup (2x140mm intake, 1x140mm exhaust).

Any suggestions are greatly appreciated, and thanks in advance.
 
Solution
You should have left it alone. Never try to reuse old thermal paste. You need to go and buy some to tide you over. The original temps were okay, what is expected with a stock cooler. It will work just enough to keep the chip out of thermal shutdown under normal frequencies. That is where you were.
You should have left it alone. Never try to reuse old thermal paste. You need to go and buy some to tide you over. The original temps were okay, what is expected with a stock cooler. It will work just enough to keep the chip out of thermal shutdown under normal frequencies. That is where you were.
 
Solution

ViciousAxel

Reputable
Sep 22, 2014
3
0
4,510
Thanks for your answer. I know thermal paste should be removed if you re-seat a heatsink, and I wouldn't normally have touched it however it had only been on for a couple of hours, the paste was still wet and hadn't cured. Will this still have the same affect?

Thanks again.