Issues with my Eiswolf 2 4090 AORUS Master -- cooling performance and condensation/bubbles

meromorphic

New member
Water block
Close up
full loop

I have had this Eiswolf 2 AIO cooler for around a year now. In the last 6 months, a bubble has formed in the block as well as some other oddities. As you can see in the photos above, there are large bubbles at the top left, as well as what looks like condensation in the middle. There are also some stains in a couple other areas. Yet, it always performed great until now.

In the last couple days I've been having issues with huge hot spot spikes under load. Where the average card temp may be 50-60C, the hotspot can go as high as 110C, which made me think maybe the bubble areas weren't getting enough flow to stay cool.

As you can see in the 3rd pic, my block is vertically mounted below the radiator which is at the top of the case.

People in /r/watercooling advised that I should run the pump to get rid of the big bubbles and try to add some more distilled water, which I did, and it seemed to work (small bubbles still hanging around), however the temp spikes are still happening and that weird condensation in the middle is still there. That part is extra weird because I can absolutely see water flowing in that area. I'm about ready to pull my hair out and hoping you guys can help me.
 

Eddy

Iceman
Staff member
I had already answered you on Reddit.

The bubbles don't change the performance, they are too few and too small. They don't play a role here at all. They will also disappear again at some point.
But what I didn't say on Reddit was that if you've already topped up with distilled water, there will probably always be a few bubbles. The ingredients of the actual coolants reduce the surface tension of the water and thus also the formation of bubbles. I would never use distilled water for filling. This has several disadvantages.

Apart from that, with the hotspot temperatures I suspect a problem with the contact pressure of the cooler on the GPU. You should remove the cooler and send our support team the pictures of the imprints of the thermal paste and thermal pads. They can then tell you something more precise.
Support: info@alphacool.com
 
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