Water cooling broken?

Out of nowhere, my CPU constantly reaches temperatures of 90-100 degrees Celsius on my desktop. As soon as I try to start anything, it freezes due to overheating. I've read a lot online that it seems to be the water cooling.

Now it says that if one hose is hotter than the other, it's probably broken. I tested it. One is nice and cool, and the other is only slightly warm. Is that a sign?

CPU: i9-10850k

CPU Cooler: Enermax Aquafusion 120

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Usj89
1 year ago

Yes, to me that indicates a defect (pump) or blockage.

I also used two Enermax units. They were both a complete waste after six months… Never again (and especially not 120V units).

So rip out the crap and buy yourself a €30 air cooler. It can do more

Lg

Usj89
1 year ago
Reply to  YeetMaster69

Each fan for 1200 socket:

List from Geizhals (622stk currently) have fun.

Lg

Krabat693
1 year ago
Reply to  Usj89

Buy a €30 air cooler. It can do more

Above all, it doesn't have a pump that can fail and a defective fan (the only thing that can break on it) isn't a catastrophic loss and can be replaced for €5.

Usj89
1 year ago

I don't know.

https://geizhals.de/thermalright-assassin-x-120-refined-se-argb-a2843577.html?hloc=at&hloc=de

It's supposed to be pretty good value for money, too. But yeah. It's best to find out which ones are good and then go for it 🙂

Commodore64
1 year ago

Check if the pump is running. If you put your finger on it, you should feel it vibrate.

If it really reaches 100°C, steam should come out of the expansion tank because the system is boiling. You should also hear bubbling.

It's more likely that the heat exchanger that replaces the heat sink for air cooling is no longer making proper contact with the CPU. It's probably come loose. Then the CPU gets hot, but the cooling system doesn't, and therefore it barely has any heat to dissipate.

Usj89
1 year ago
Reply to  Commodore64

Just because the CPU reaches 100°C doesn't mean the water inside will be that hot, either. The water temperature isn't monitored.

Commodore64
1 year ago
Reply to  Usj89

Exactly, exactly as I wrote! Please read and try to understand!

Commodore64
1 year ago
Reply to  YeetMaster69

The pump is usually noisy, then the rotor bearings are broken, and the impeller rattles in the housing. The pump usually still works perfectly – but only as long as it rattles. At some point, it suddenly goes silent…

Commodore64
1 year ago

That's exactly why I wrote about the detached heat exchanger.

Usj89
1 year ago

If it really reaches 100°C, steam should come out of the expansion tank because the system is boiling.

In your article, I'm implying that you meant the CPU by choosing "the." I was simply pointing out that the CPU temperature has nothing to do with the water temperature.

Nothing more, nothing less. So that others who read this answer in the future don't misunderstand it. I'm well aware that you have sufficient knowledge. Know your answers…

Lauchzwiebel11
1 year ago

Sounds like the pump is defective. A new cooler is the only solution. A 120mm AiO doesn't make sense, though; the radiator is much too small. In my opinion, an AiO only makes sense with a 360mm or larger cooler. Otherwise, I'd rather get a good air cooler.

Lauchzwiebel11
1 year ago
Reply to  YeetMaster69

The Bequiet Dark Rock Pro 5, for example, is very good and available for under 100€.

ListigerIvan
1 year ago

Sounds more like a defective pump.

That's why you install proper air-cooling systems. They're quieter, often cool better, require less maintenance, and are virtually failure-free.

ListigerIvan
1 year ago
Reply to  YeetMaster69

Noctua D15. If that's too big, get the D14.

There's actually nothing they can't cool down.

YogiSchreiner
1 year ago

Unfortunately, this isn't enough information to make a precise diagnosis. This could be caused by entirely different things.