120mm Fan Testing on an MCR120 Radiator Round 6

[jalyst]

In theory it should work as long as we are talking of real pwm fans (4-pin fans).
besides that, your mb also comes into play. some mb's have a min pwm limit for safety reasons. they won't be able to lower pwm duty cycle below a certain limit. don't know if miahallen's gigabyte has such a limitation. may be this can be figured out with the userguide of the mb.

Okay thanks for explaining this, I'll scour my manual for any upper & lower limits on PWM duty cycle.
Failing that, I'm not sure how else I can investigate this, hopefully Asus email support is decent!!

No idea, you should first find out what kind of controller your MB uses, at least older Asus boards seem to use Winbond chips. When you know the exact type of SuperIO chip then you dig up a datasheet for it and check which kind of controls it has.

Okay will do, thanks!