Kraken Z63

SpriteNo5 · February 20, 2021

Z63 is about 2 months old, only noticed problem in last week or so.

The noise I'm getting isn't the pump whine you expect to hear, I get that and it's consistent and as expected. Temp of CPU hasn't been affected at all.

I noticed a noise from the PC, clicking at first so started mooching. I narrowed it down to Z63 pump, basically the frequency of the noise changes when the pump speed is changed. So low speed you get slow intermittent click/creak but regular, at 100% you get loud click that slowly dissipates to quiet then starts up again. I found that around 70% pump speed, noise almost goes completely with very irregular faint click about once a minute you really have to listen for this.

I noticed when gaming and system heats up the noise stops. So started running Heaven and Cinebench at same time to monitor things. After about an hour of this CPU maxes out around 70 GPU 65 and liquid temp around 41. Pump speed at 70% no sound, so raised pump to 100% (this was previously noisiest) and still no sound.

It seems to be that when the system is coldest and at idle or light tasks and liquid temp is low 30s to high 20s you get the issue and can only get rid with pump at 70%. Once the system has been heated and is being stressed no noise at all even at 100%.