AIO CPU Temps

beepadyboopady

Reputable
Apr 12, 2018
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4,510
I have got a i5-8600k at 3.6 GHz and with it a H100i Pro 240mm AIO cooler.

My idle temps are around 45 degrees and GPU at around 35 with fans on around 80-100%. Gaming with it is around 65 degrees, with all fans on max. . I was just wondering if that is too high for idle temps with an AIO with most of the fans on max or high

Thanks in advance!
 
Solution
Ok. So, you have 5x 120mm fan placements. 2x in front, 2x in top and 1x rear.

Your cpu cooler is best placed in the top, with the fans underneath, blowing out the top. The 2x fans in front should be blowing in, and the 1x rear blowing out.

If you did not buy separately 2 more fans for the front, then you have No intake and 3 exhaust, that's going to get warm.

If you placed the radiator in front, with either the fans blowing in or sucking in, that'll leave just the 1x exhaust, but temps will be middling ok.

I'm thinking you do not have any fans in the front, so have no cool air supply other than what the exhaust can draw via vacuum principles.

Get some fans in front blowing in. That can drop case temps by as much as 20°C ish...
I look for 10-15c. over ambient at idle with most any cooler.

Under load, your temps are fine.

Is your radiator getting a good supply of fresh air?
Does taking the case covers off help?

Is your pump mounted level?
Did you use too much paste which can act as an insulator.
Did you remove the transparent mylar protector from the pump before installing?
Can you feel the pump running?
Is there air in the coolant lines?
 
I have checked what you suggested and all seems fine, good supply of air, good amount of paste, but I am confused on how you would check if there is air in coolant, due to I am new to PC building I am still learning about everything. I also downloaded the Corsair Link 4 app, which has told me my fans are running between 1800-2100 and my pump is running around 2100 rpm.
 
To be honest, that's a hot-box. 35°C with fans at 80-100%? With 23°C ambient (@73°F) nzxt Kraken X61, i7-3770K @4.6GHz on gtx970 @124% and the cpu is 32 and gpu 33°C, fans at 450rpm and 0%.

So 1 of 3 things is happening. A) you have extremely high ambient temps, it's impossible to cool a cpu/gpu lower than ambient by mechanical means (fans), and components generally run @10-15°C higher than ambient. Or B) you have nowhere near enough and/or incorrect airflow in your case resulting in the components acting like burners in an oven. Or C) combination of A+B.

Figure out your ambient temp. If ambient + 10-15°C = your temps, then all is normal. If ambient is below your temps + 10-15, your airflow is messed up and you are not supplying enough cooler air and exhausting the hot air. If ambient is higher than your temps, the software is lying to you.

1800-2100 fans and 2100 pump is normal for that cooler.

So what case, what/how many fans, which direction do they blow, how is the rad/fans mounted?
 
My ambient is probably the reason why it is running so high. The ambient temp is around 28-30 degress due to in Australia is summer, but I also think that my case has little airflow to it, the Thermaltake Versa C23, with two two narrow vents on one side and one side only. The first one being the side of the front panel and the side of the top panel and it is choking the system of cool air. The front of the case has 2 intakes running at around 1800 where the rad is, top has two outtakes running at around 1600, and one at the back running at around 1800 all 120mm and would know any other ways to increase airflow?
 
Ok. So, you have 5x 120mm fan placements. 2x in front, 2x in top and 1x rear.

Your cpu cooler is best placed in the top, with the fans underneath, blowing out the top. The 2x fans in front should be blowing in, and the 1x rear blowing out.

If you did not buy separately 2 more fans for the front, then you have No intake and 3 exhaust, that's going to get warm.

If you placed the radiator in front, with either the fans blowing in or sucking in, that'll leave just the 1x exhaust, but temps will be middling ok.

I'm thinking you do not have any fans in the front, so have no cool air supply other than what the exhaust can draw via vacuum principles.

Get some fans in front blowing in. That can drop case temps by as much as 20°C ish. Cooler air absorbs heat far better than warmer air, so without adequate airflow in/out, your components are just recycling hot air, and temps will be high, even at idle.
 
Solution
Hmm, I type slow. Missed the edit. Sorry.

Umm that's actually a fine setup, should be plenty of airflow if the fans are as you say they are oriented.

30°C ambient = @40-45°C idle roughly. Gpu is only 35°C because of fan speeds being so high. Load temps are going to be roughly equitable @25-30°C above ambient, so those are about right too.

So overall, your pc is responding just about normally due to the high ambient temps. The only way you'll get much lower is figure out a way to drop the ambient temps, like turn on the air conditioner and get ambients closer to low 20's instead of 30ish.