Well ... i meant one waterblock, one radiator, pump and about a meter , or meter and half , of tubing. A more or less "standard" loop. As the waterblock, any that has an acceleration nozzle. Heatercore rad ?.
At least, i'd like to see it, gives , IMO, better perception on noise levels than a fullscale testing.
You're simply not going to have a loop with so little restriction that the pump is close to full head, neither one close to zero head. But hey, i'm just saying.
A ball valve is another way to go. Pinch clamp? isn't that a little too ghetto?
Or a motorized valve. I bet you can find a few within "the decent price range" on Ebay.
Please, no french literature.
"je ne pense pas que c'est un bon idée"
things might get a little ... er, murky.