Hi,
I've done a few searches in trying to find threads with this information, but none seem to specifically address what I'm after. If there are and I missed them, sorry.
I just finished my first new liquid cooling system in about 4 years (see
HERE). If you look closely in the foreground of the pic in that thread, I'm using a hobby grade AC/DC power supply to run the pump while I bleed the system and leak test.
Here's the issue. The D5 is set to #5 speed setting. The power supply in use pushes 13.4v, so I know the pump is spinning a bit faster than it will when using the PC's power supply (probably 11.9-12.2v). Right now it has a very slight, but extremely irritating high-pitched "whine" to it. If it doesn't go away at ~12v, what setting is the "point of diminishing return" where the decrease in noise via reduced RPM starts to create an impact in performance? 4? 3? 2?
I've read that the D5's are pretty well silent at the lower settings, but I don't want to go too low. I know the Storm design still performs very well at lower flow, but I also know it performs
best with more flow and pressure.
Before anyone says the undersized radiator could impact performance more anyway, I already know that too.
Thanks!!!
Tom