Thermaltake Water 2.0 Extreme has really high pump RPM and it is overheating

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JasonWharton

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Oct 7, 2015
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I have this liquid cooling system and it is not keeping my CPU cool enough to run for very long. I noticed on the fan control software that the RPM of the water pump gets really high, like well over 6,000 and it sounds terrible. I got it to keep my system cool and quiet and it is doing neither.

What does the high RPM mean? Is there an air bubble possibly or did it lose its cooling liquid? Can this thing get a refill on the liquid if it somehow leaks over time?

I already bought new thermal grease and made sure it was properly applied but it didn't help at all.
 
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rubix_1011

rubix_1011

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Jan 12, 2007
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Pump RPM on a fan controller doesn't necessarily mean anything unless you know the operating speeds of the pump...and that's also if it is being reported or interpreted correctly by the software. I'm assuming it used to read differently?

What does it sound like when you say it 'sounds terrible'? I am assuming it is also no longer cooling since sounding this way?

As this is a closed loop cooler, you shouldn't ever have to make any changes to the coolant/liquid. You might possibly have an airlock - have you moved the case around recently?

Airlock -

Disconnect the radiator from the mounts if you can. Start the system so the pump is running. Rotate and tap the radiator to dislodge any air locks. Also tap the pump housing during this time. See if this corrects the issue of noise. If so, mount your radiator and proceed with life as usual.
 
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JasonWharton

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Oct 7, 2015
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Yes, IIRC it had lower values and the software shows the max RPM it expects to be 3600 RPM so it is pretty much double what should be the top end.


It sounds a little bit like it would if something was being rubbed by fan blades but with a little bit of a grinding sound. It will come and go in varying degrees and it does seem to be influenced a little if I tip the computer at different angles.


I'll try your suggestion and see if that helps.
Thanks!

Note: I did try plugging it into different fan blocks on the motherboard but it didn't seem to help. I am using a MSI-Z97 GAMING 3 running an i7-4790K CPU.
 
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rubix_1011

rubix_1011

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I don't think that using a different fan header from the motherboard is going to make any difference unless the fan header you are using fails. This seems to be more an issue of the pump unit itself and the possibility of either pump failure or just an airlock...or both.

 
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