Quote Originally Posted by Egilman View Post
They were brand new when installed. I've read alot about the air bubble noise issue, but have never experienced it, I've only had experience with two brands, the Arctic Hybrids and the Corsair H-55 which are both Asatek licensed pump bodies.

I've reviewed the current opinions on AIO lifespan and the opinions run from 3-5 years. It's all opinion cause there are only reports of failure but no documented cases.

I know they will fail, I've an engineering background and anything mechanical, especially with moving parts, will eventually fail. That is a rule written in stone.

That being said, AIO's haven't been around long enough to really know and there are not actual failure reports backed up by evidence. There are just as many reports of coolers lasting 6+ years as there are reports of failures at -2 years.

In researching this I found the warranty terms revealing....

NZXT warranty is 6 years
Corsair warranty is 5 years
Swiftech warranty is 3 years
EKWB warranty is 2 years

High end pumps not using the asatek design are warranted shorter that the asatek designs at the lower end of the scale.

In many ways I'm poking around in the dark here, when I describe the problem to the Asus tech tech people they have never heard of such happening before, same as the MSI people last year... In fact I'm sending three of the cards back to MSI so they can look at them as they requested last year.... (last year I had disposed of the cards before they requested a sampling of them)

Maybe I'll get an answer this time as to what is causing this...

The best overall advice on AIO replacement is to replace when they start to not cool as well as they did new. At least that is what my research over the last 8 hours is telling me. I wish I could find a confirmed report on the coolant loss issue. But the Manufacturers tech's that are willing to talk to me are not willing to say that evap is a real issue.

Estimated absolute hardware mechanical failure on an asatek pump/cooler is 10 years. (according to asatek) But even they do not know for sure cause they haven't seen such an occurrence yet. the radiator/tubing/electronics will fail before the pump will according to them.

I don't think it was the coolers....

Anyway three of the cards are on their way back to MSI, they even are paying the freight to get them. (and one of the MB's) They want to see what the heck is going on with this combo. They agree it's a HW issue.
Glad they are looking at it and hopefully MSI will come up with a remedy that is free to you.

As you all know, I lost a MB to a psu failure recently. When I got the replacement board I put the same H100i cooler on it. It would throttle at idle and over 75c. Prior to that temps had been acceptable. I replaced the cooler with a Hyper 212 evo yesterday and 100% load temps are less than 50c on all cores. I drilled the tanks on the H100i and got all of 1 - 2ozs of fluid out of it. So it does evaporate because there was never any sign of leakage. This is why I prefer air coolers for cpus. GPUs are another story and mine suck enough to where it was never a concern.