LinuxQuestions.org - chassis fan at max speed, no speed control?

Hello all,

I got a new computer and got it running Slackware64-current. It's motherboard is an ASUS M4A88TD-M and it's processor is an AMD Phenom II x4 965. I decided to get some chassis fans to improve it's thermal performance. But, since I started the computer after installing the new fan (only one of the 3 I got) the fan's speed is at max and it's very noisy.

I'd like Slackware to control it's speed according to temperatures from lm-sensors. Output of # sensors-detect can be found here.

Kernel is stock -current 2.6.33.4. Output of # lspci is here.

Code:

gtl@coruscant:~$ sensors

atk0110-acpi-0

Adapter: ACPI interface

Vcore Voltage:    +1.31 V  (min =  +0.85 V, max =  +1.60 V)

 +3.3 Voltage:    +3.34 V  (min =  +2.97 V, max =  +3.63 V)

 +5 Voltage:      +5.08 V  (min =  +4.50 V, max =  +5.50 V)

 +12 Voltage:    +12.03 V  (min = +10.20 V, max = +13.80 V)

CPU FAN Speed:    2170 RPM  (min =  600 RPM)

CHASSIS FAN Speed:3409 RPM  (min =  600 RPM)

CPU Temperature:  +40.0°C  (high = +60.0°C, crit = +95.0°C)  

MB Temperature:    +32.0°C  (high = +45.0°C, crit = +75.0°C)  



k10temp-pci-00c3

Adapter: PCI adapter

temp1:        +0.0°C  (high = +70.0°C, crit = +99.5°C)

How can this be solved?
Thanks in advance,
gtludwig