Hey there,
I just bought a be quiet pure base 500dx case and it comes with 3 140mm pure wings 2 fans (3 pin, 1000rpm).
When I was adjusting the rpm in the bios I noticed that one of these be quiet fans is at 100% but only spins at 925-930rpm, the others are fine with 1000 to 1020 rpm.
I also tried adjusting it with speedfan but didn't help.
I tried other fan ports, tried slowing down the others but it still wont spin faster than 930rpm.
The fan itself is fine no strange noise or anything like that it just annoys me what could cause this.
Any ideas?
Config:
mobo: Asrock 970 extreme 3
psu: seasonic focus gx 650
cpu: phenom II x4 965 black
vga: sapphire hd 6770 1gb
ram: 2x2gb kingston hyperx
os: Win 10 64 bit