This issue has been plaguing me for a while. I have an AMD x2 4400+ that keeps throttling down to it's slowest speed: 1000Mhz. No matter the load or cpuspeed settings she will not throttle any higher. After a complete power down and startup the speed will be at 2200Mhz but only for a seemingly random amount of time. It's a Shuttle system SN95G5v3 with nforce3 250 chipset. I also get a lot of ACPI "can't turn cooling device 'on'" messages in dmesg. I've googled for months now and can't find anything of relevance. Any suggestions?
