自从我更新到 12.04 LTS 后，我的台式电脑的风扇一直高速运转，而且噪音很烦人。CPU温度低。这是sensors 命令给我的信息：
nouveau-pci-0400
Adapter: PCI adapter
temp1: +48.0°C (high = +100.0°C, crit = +115.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +39.0°C (high = +82.0°C, crit = +100.0°C)
Core 1: +40.0°C (high = +82.0°C, crit = +100.0°C)
Core 2: +37.0°C (high = +82.0°C, crit = +100.0°C)
Core 3: +44.0°C (high = +82.0°C, crit = +100.0°C)
f8000-isa-0a00
Adapter: ISA adapter
+3.3V: +3.34 V
3VSB: +3.38 V
Vbat: +3.23 V
fan1: 1675 RPM
fan2: 959 RPM
fan3: 0 RPM ALARM …