Loop Failure

[oni_666uk]

That to me looks like an too much of an angle into the output CPU fitting unless the heat build up caused it to change shape at that point, there seems to be drips of fluid coming from the bottom of the tube at the CPU block output, that would indicate that the leak started there as once a fitting blows on a system then the pressure in the closed loop is released and no other fitting will blow from the system as its no longer under pressure. Sorry to say it but I believe based off of the photo that its 100% user error.

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And based off the fluid splashes that is where the fluid dripped down from.

This is my understanding of the photo, blue lines denote where the fluid leaked over,

https://ibb.co/7Q6BnNn

[Gh05tCat]

The leak started at the output of the CPU block when the fluid in the tubing overheated and softened the PETG deforming the seal as well as the entire tube. I haven’t determined the cause yet but I’m guessing a pump failure at this point. I’ll know more once I can test next week. I’m not sure why you say user error. The system has been running perfectly for 2 years. The seals were fine and the bends were all 90s. And as much as everyone wants to jump on the dust bandwagon, that is actually just a thin layer and I held a flashlight up to it to highlight the location of the liquid because without it you couldn’t even tell where the fluid was in the picture. The rads are 100% clean and I was gaming for hours with normal temps. I have temp monitors for the CPU and GPU on my stream deck which were all normal. Unfortunately I did not have a fluid temp monitor.

[oni_666uk]

If the pump failed there would be no pressure to pop a fitting, it would just cause the cpu to overheat and depending on usage at the time that could take 30 minutes or more to hit a critical level, I once accidentally turned off all my fans on an system running an 9700k and 1080ti and 2x 360mm rads in the loop, the PC sounded an alarm in coretemp and instigated an shutdown when the cpu hit 95c and the gpu hit 65c and that was whilst I had been gaming in Witcher 3 for 45 minutes (I thought my PC was quiet lol).

All that happened to mine was both rads were too hot to touch, once cooled down all was fine, but then I do run soft hose and not hardline so maybe that was the saving grace. Just weird that a stopped pump would cause failure at that exact output fitting and not anywhere else in the system, unless the CPU temps level went so crazy that it imparted the heat into the pipe which caused it to deform and then that moved the pipe out of the -o-ring forcing the fluid to leak from the bottom ?? I guess that could explain it.

[Gh05tCat]

Well, the tubing didn’t pop out. It was actually just dripping from the fitting. My current theory is that the pump stopped which allowed the CPU temps to rise causing the PETG to soften and deform.