I love my A4 v4.1 build (even managed to snag a Gigabyte 3070 Eagle to fit in there!), but there's one thing that keeps it from being perfect.
The pump noise from the Asetek 645 LT.
This is recorded right in front of the right side of the case, with mouse clicks for reference.
Whooshing from fans doesn't bother me, but this high-pitched, whirring sound from the pump nags me.
It's particularly noticeable when working (as opposed to gaming), when all other fans are spinning at very low RPM.
Switching to an L9 or Black Ridge would make the rig silent at idle, but this would lower my cooling potential -- which would be sad, because I love the 645LT in all other regards (I even had custom cables for the SF650 made by DreamBigByRay so the radiator doesn't squash the cables).
The only thing that has helped a bit has been configuring the header to 0%/OFF in my BIOS, which doesn't seem to change the RPM of the pump, but did reduce the electrical noise a bit (I guess due to lower voltage?).
What are people's experiences with this problem?
- Is this level of pump noise "normal"/expected from the 645LT?
- How did you install and configure the pump in your BIOS?
- Is there anything else I can do to reduce noise from the pump?
