heated cpu

Method-Man · March 10, 2016, 02:14:14 AM

hey guys i not long finished my new build and recently started playin the division im running cpu temps program and keeping an eye on my CPU heat and its getting from 50-70 degrees is this normally i have had rare moments it spikes to 80 - 90??
shall i change my thermal paste rather from the stock one i got from my hydro pump?

Gorion · March 10, 2016, 09:29:20 PM

80-90 on a CPU is quite high.

Which CPU, and which cooler are you using?

Applying your own TIM is a good start. Is the radiator fan working? Is the radiator extremely hot? Does the pump feel like it's working? Do you hear air bubbles in the loop?

Method-Man · March 10, 2016, 11:23:12 PM

im using i7-4790k with corsair hydro H60
i can feel afeint vibration from the pump but thats about it, fan is working rad feels cool, aslo on idle sits around 30-35

Jewelz^ · March 11, 2016, 09:07:30 AM

30-35 is around normal for idle. You should be hitting around the 65-70 mark on a CPU stress test. 80-90 is in the danger zone for me, although I think Haswell's begin to Thermal Throttle at 102.

Chaosphere · March 11, 2016, 01:25:18 PM

Getting into the low 90s for that CPU is actually 'normal'... they run very hot.

TL and I both have the 4770k, runs a few mhz slower than the 4790k. We have both de-lidded our CPUs to clean out the useless gunk intel use to transfer heat from the CPU die to the heatspreader, replacing it with better quality material. After that, and with a H100i, my CPU gets to around 75 as a maximum.

You can try things like changing the TIM, or simply increasing the fan speed on the H60, but the only thing that makes a considerable difference is a de-lid. Not something to be done lightly, though, as it is very easy to ruin an exposed CPU die. Damage one of the transistors under the heatspreader (they are miniscule) and you will kill the CPU. If you are happy with temps in the low 90s, and that is indeed as high as it goes, I would keep things as they are.

Edit - there is actually another option that can help quite a bit...

1) Make sure you have the most up to date BIOS for your motherboard.
2) Go into said BIOS, UNDERVOLT the CPU. Just find out the lowest voltage the CPU needs to run without issues. By default your motherboard will be giving it more voltage than it needs (which motherboards do to accommodate the variable quality of CPUs). You can easily shave off 5 degrees if your mobo is giving too much juice.

Method-Man · March 11, 2016, 03:02:10 PM

Yeh I have boosted my fan speed to turbo for all fan not just cpu I tend to find its major heats up when I load up or am loading a game my thermal paste comes Monday so I will try that then, if not I might get a bigger case and a h100i to accompany it I have a feeling h60 work a lot better for i5 and lower

Chaosphere · March 11, 2016, 03:10:31 PM

Just don't be surprised if those things don't change the results you are getting.

The rubbish TIM between the die and the heatspreader is more likely the limiting factor than the H60.. and changing the paste will almost certainly change nothing significantly.

Method-Man · March 11, 2016, 05:59:47 PM

so stress test only 10 min in i stopped it

Chaosphere · March 11, 2016, 08:59:16 PM

Undervolt in the bios... then repeat prime and see the difference...

Its hot but I am just worried for you that you will not see the change you are hoping for with a new cooler / simple paste change.

Method-Man · March 11, 2016, 10:36:15 PM

i tried to undervolte but keeps coming up blue screen

TeaLeaf · March 12, 2016, 12:13:15 PM

How much are you undervolting by and is it from standard clocks? If you udnervolt and overclock it's a bad combo. Either way, those temps are not ideal.

albert · March 12, 2016, 05:30:24 PM

Quote from: Method-Man;411393im using i7-4790k with corsair hydro H60
i can feel afeint vibration from the pump but thats about it, fan is working rad feels cool, aslo on idle sits around 30-35

I have the same CPU and cooler, I get 56 degreeC under load with 2 monitors at 2650x1440 and a GTX 980 (ok not exactly responsible for the CPU but some games higher res strain the CPU). I would think that your ingress fan might not be getting clean cool air or your case isn't extracting air properly. That CPU should never run at that temp with that type of cooler I would say.

Method-Man · March 12, 2016, 05:32:44 PM

Quote from: TeaLeaf;411437How much are you undervolting by and is it from standard clocks? If you udnervolt and overclock it's a bad combo. Either way, those temps are not ideal.

not by much only 0.010 at a time also its not been overclocked

albert · March 12, 2016, 10:17:23 PM

I meant to point out that the temperature variance between cores is rather high, normally I've seen a few degrees difference, but 77 - 90 is quite a lot and does suggest the cooler isn't properly leveled or the paste has air bubbles in places.

I overclock and as I said 56 degrees max, same CPU, same cooler.

Method-Man · March 12, 2016, 11:32:13 PM

Quote from: albert;411456I meant to point out that the temperature variance between cores is rather high, normally I've seen a few degrees difference, but 77 - 90 is quite a lot and does suggest the cooler isn't properly leveled or the paste has air bubbles in places.

I overclock and as I said 56 degrees max, same CPU, same cooler.

ok well i will have too wait till monday to swap paste i got artic silver 5 anygood even for de-lid use?