Hello,
 
I experience some issue with the pump of my newly acquired 3080 FTW3 ULTRA HYBRID 10G (LHR). The AiO is correctly mounted as in the radiator is above the pump, mounted on the front panel, tubes down.
Firmware is up-to date (Updated itself during the first launch of PX1), as is PX1.
The pump is very noisy, it sounds almost like a wire hitting a fan. (I checked, it is not)
 
My troubleshooting consisted of the standard procedure concerning watercooling :
-Laying the PC case on the sides.
-Holding/shaking radiator above the pump.
-Opened up the card to check the shroud fan. (Not obstructed)

Neither of those provided good results, and lead me to believe that this is not a "bubbles in the pump" issue.
 
Although, I noticed recently that the noise is related to the temperature of the GPU. When I use PX1 to "Boostlock" so that the GPU temperature ramps up, the noise starts fading out passed 35°c and is completely gone by the time the GPU reaches 41°c wich is the max stable temperature reached during idle.
 
As a summary (considering system at idle) :
-No boostlock ; Clock Freq 210Mhz/731mV ; GPU T° 26°c ; Pump is very noisy.
-Boostlock ; Clock Freq 1815Mhz/925mV ; GPU T° 41°c ; Pump almost completely silent.
 
(For context about the frequencies, I undervolted the GPU with MSI AB but the problem is present even when using the default clock.)
 
Obviously, keeping the system on boostlock is not a viable solution in the long run so I was wondering if you had a solution for this situation?
Maybe a way to up the "idle" clock so that the temperature is a bit higher without using "Boostlock"? Or some king of control over the pump?
 
I tried submitting a ticket to support but I end up on a "access denied" page once I click on "Submit" on the EU/Global support page.
 
Thank you advance.
Have a nice day.
 
Edit: Recordings of the difference "drive.google.com/drive/folders/1DkTYoHTiCIvbPkQkczl5q20zF8GLXh_p?usp=sharing" (add https to access url)

Fan speed doesn't change anything, I mean I can't tell for sure when the fan are at 100% as obviously it sound like an airbus is taking off.
But because at first, i thought too it was a fan issue, I played a lot with the fans/curves.
 
But the more telling is that my system is "silent" right now while boostlock is turned on. 

darkronos
Fan speed doesn't change anything, I mean I can't tell for sure when the fan are at 100% as obviously it sound like an airbus is taking off.
But because at first, i thought too it was a fan issue, I played a lot with the fans/curves.
 
But the more telling is that my system is "silent" right now while boostlock is turned on. 

May just be that there isn't any correlation between GPU temp and the noise and it was merely coincidence. The pumps in the hybrids are pretty notorious for being noisy and getting worse over time. Many have had to RMA.

darkronos
I added recordings in my original post.


Had to reproduce the noise to do the recording:
Boostlock OFF -> Temp went down -> Noise progressively came back -> Recorded -> Boostlock ON -> Temps went up -> Noise got off -> Recorded
 
Works every time.

Possibly coil whine then. Hard to say. May just be worth it to RMA if even detaching the fans from the rad and testing don't change anything.

I had a defective pump on mine. It was actually the same exact noise as yours. Mine initially was quiet but then it became worse to the point that it wasn't silent anymore. It was very annoying. I find the best way to get an RMA started is by calling evga and not to deal with their website. Their website can be finicky at times, and I also did get an access denied before.

If you call them and explain the situation, they'll get you started super quick!

P.s. My replacement has been silent ever since. :) fingers crossed!