PWM is the way to goI put a 2.5k rpm a9x14 off the l9i, the one with the lower starting voltage wired to the psu. It makes a continuous ticking noise (1-2 ticks a second) on desktop/idle use and the fan is spinning as well.
I guess the psu is supplying enough voltage for it to spin 24/7, but not enough to power it completely. Which is different from what Ceski reported with his retail a9, where the fan would come on and off. Mine keeps spinning with the noise.
This can't be good for the fan right? Thinking of going the pwm way wired to mobo.