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Serious heating problems with i9-10900k and RTX 3080


Frank One
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Hi all,

I'm a satisfied owner of a Corsair 570x Crystal case (as well as 2 x 16 GB Corsair DDR4 3600 PC4-28800).

 

However, my i9-10900k and RTX 3080 are running extremely hot when running certain games. I'm looking to:

 

1. Replace my current CPU Cooler;

2. Install additional fans in the case.

 

Question on point 1 above:

Can I install the Corsair Icue H150I Rgb Pro Xt with 3x 120 fans on top? I only see 2 slots on top of the case. Also, will I see benefits in installing this cooler system and replacing my current Cooler Master MA410M? Basically, going from 240 to 360 and making some more space between CPU fan and RTX.

 

Thanks in advance.

Frank

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No 360mm up top in the 570x. There are not a lot of cases that are 360mm top capable. However, they may not be the best solution anyway. Even with your 10900K overclocked to it's limits, you might run about 250W with a continuous 100% load. That doesn't exist for most people outside of CPU renders, encoding, etc. The larger source of heat is the 3090 where you easily can sustain a 300W+ load for hours on end. With the CPU radiator in the top as exhaust, you are pulling the waste heat from the GPU through the radiator. This raises the baseline coolant temperature in the system and that is the minimum possible CPU temp with no voltage. I think it is likely a 360mm radiator offers you better CPU cooling than the CM air tower, but you will want it in the front intake position to keep it out of the GPU heat zone.
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Thank you for your comments.

 

Basically, you are saying that the main source of heat is coming from the RTX 3080. Which makes sense as when the RTX reaches 80/85 degrees at full 100% GPU loads on games like Cyberpunk 2077, this is when the CPU starts burning as well, even with low CPU loads such as 15/20%.

 

So, increasing the air flow would be beneficial. This is my current setup:

 

https://ibb.co/rbWHnv5

 

I'm thinking about the following corrective measures:

1. Install fans on top (2x 140mm);

2. Install fan on the rear (1x 120mm);

3. Evaluate replacing Cooler Master MA410M with another system (not sure about this one as I read different reviews on this product);

4. Evaluate if the silicon paste is properly applied (I may have put too much, obtaining the opposite effect).

 

Thoughts?

 

Thanks.

Frank

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your schematic scared me. I hope the second fan on your CPU cooler is not intake as well :p

otherwise yea, totaly fill that case with fans, and if there's a dust filter up top, remove it too.

It's also a good idea not to place your PC too close to the wall if you can, just to avoid having that zone of hot air that will get recirculated (if it applies to where you have it installed).

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your schematic scared me. I hope the second fan on your CPU cooler is not intake as well :p

otherwise yea, totaly fill that case with fans, and if there's a dust filter up top, remove it too.

It's also a good idea not to place your PC too close to the wall if you can, just to avoid having that zone of hot air that will get recirculated (if it applies to where you have it installed).

 

You solved all my problems, mate. :bigeyes:

After reading your comment, I started collecting more information on the Cooler Master MA410M and found out that the two fans work in a push-and-pull configuration:

 

https://ibb.co/gZF0WJf

 

One of the fan is an intake, the other one is one outfall. The problem is that nowhere in the manual or on the fans themselves it is explained how to install them. As a result, they were inverted. The CPU was pulling hot air from the 3080, trying to cool down the CPU with hot air from the graphic card.

 

After swapping the two fans, everything works perfectly (CPU @ 70 degrees in Cyberpunk 2077 as opposed to the previous 85/90).

 

Will mount a couple of more fans inside the case just to bring the temperature further down, but I would say problem solved now! The beer is on me!

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