The Astroman

I just bought the Akasa AK-FC-03 (http://www.akasa.com.tw/spec/fan_con...c_ak_fc_03.htm) , but the dials at the front don't seem to be working.. They're supposed to let you choose fan speed, but they don't change anything. I tried putting one of them (don't worry, not the CPU fan) to zero, but it was still turning at 2040 RPM. Why?

Manual says:

"FAN 1, FAN 2, FAN 3 and FAN 4 dials: These adjust the fan speeds respectively. (Turning clockwise to increase speed.)"

__________________
Intel P4 HT 2.4 GHz // Asus P4P800
Radeon 9600// 2x256MB PC3200 Infineon + 2x512 MB TwinX 3200C2 Corsair XMS
80GB IDE//140GB SATA // CM Stacker
DVD Player // LiteON SHW 16H5S Lightscribe
Logitech Z5300// SB Audigy 2 ZS
Akasa Rheobus // 19’ LCD
Keyboard // Logitech MX518
FAN of: Lost,The OC, Alias, DH, Prison Break, 24, Nip/Tuck, CSI, NCIS
CHINA EARTHQUAKE RELIEF