I've 922Haf Cabinet. The Top 200mm fan spins faster when ever i switch on my CPU after 2-3 secs it gets back to nrml speed. i mean to say as soon as i switch on my CPU the fan rotates faster and i can hear noise of that fan after few sec it slows down and rotates quietly. Is that a problem ? how can i control it ?
More about922haf spins full speed
Thats normal, a lot of fans start off on full speed and then the bios kicks in and controls the rpm.
Some bios's have the option to tune the fans for silent\performance\optimal modes.