John Summerfield wrote:
Robert L Cochran wrote:
Is there a way to find out the cpu fan speed through software -- a
shell script or other utility maybe? I'd like some way to monitor cpu
fan speed and get a notification if the fan quits unexpectedly.
You need lm-sensors
run sensors-detect as root, agree with everything. Then,
[root@mail httpd]# LANG=C sensors
eeprom-i2c-0-51
Adapter: SMBus I801 adapter at e000
Memory type: DDR SDRAM DIMM
Memory size (MB): 256
eeprom-i2c-0-50
Adapter: SMBus I801 adapter at e000
Memory type: DDR SDRAM DIMM
Memory size (MB): 256
adm1025-i2c-0-2d
Adapter: SMBus I801 adapter at e000
+2.5V: +1.48 V (min = +0.00 V, max = +3.32 V)
VCore: +1.48 V (min = +0.00 V, max = +2.99 V)
+3.3V: +3.30 V (min = +0.00 V, max = +4.38 V)
+5V: +5.08 V (min = +0.00 V, max = +6.64 V)
+12V: +0.00 V (min = +0.00 V, max = +15.94 V) ALARM
VCC: +3.27 V (min = +0.00 V, max = +4.38 V)
CPU Temp: +38.0 C (low = +0 C, high = +127 C)
M/B Temp: +34.0 C (low = +0 C, high = +127 C)
[root@mail httpd]#
I have seen fan speed mentioned.
Word of warning.
What I did find out about sensors is the accuracy of the voltages can be
wrong. Take note that this could give a false sense of security. I had
a PSU failing but sensors didn't read the voltage correctly. I lost a
DVD burner and almost lost a hard drive due to this. You can play with
the settings and calibrate the settings.
I confirmed my settings with a good digital volt meter.
I was reminded of this when I saw the ALARM in the above link.
--
Robin Laing
