Temperature monitoring on old desktop - Dell OptiPlex SX270?
torfinn.ingolfsen at broadpark.no
Sat Aug 2 23:50:56 UTC 2008
got this old machine, a SX270 that I thought I would put to use as
my workstation (yes, my current workstation have lower specs than this
I have installed FreeBSD 7.0-stable on it (i386). Normal and
verbose dmesgs are available. Everything seems to work, but there is
one thing tha doesn't: it doesn't report thermal parameters via acpi:
root at kg-work2# sysctl hw.acpi.thermal
sysctl: unknown oid 'hw.acpi.thermal'
n fact the whole acpi section from sysctl seems a bit incomplete:
root at kg-work2# sysctl hw.acpi
hw.acpi.supported_sleep_state: S1 S3 S4 S5
There is an acpidump available too (from 'acpidump -dt').
The bios on this machine is from 2004, and that might be the cause. I
couldn't find a newer bios than version A06, release date 09/29/2004.
Does anybody know about a newer bios for thios machine anywhere?
Or does anybody know how to fix the DSDT in the bios to enable thernal
Or perhaps there is a way to read the temperature off the cpu, like the
For those who wonders: yes, I have tried mbmon, lmmon from ports, but
they didn't report anything useful as far as temperature goes.
root at kg-work2# mbmon -d -A
ioctl(smb0:open): No such file or directory
SMBus[Intel8XX(ICH/ICH2/ICH3/ICH4/ICH5/ICH6)] found, but No HWM
available on it!!
Summary of Detection:
* No monitors found.
InitMBInfo: Bad file descriptor
This program needs "setuid root"!!
Output from 'lmmon -si':
Motherboard Temp Voltages
255C / 491F / 528K Vcore1: +3.984V
Fan Speeds + 3.3V: +3.984V
+ 5.0V: +6.654V
1: 0 rpm +12.0V: +15.938V
2: 0 rpm -12.0V: -15.938V
3: 0 rpm - 5.0V: -6.654V
I think 255 degrees Celsius is a bit unrealistic, the machine can't fry
eggs yet. :-)
Any good hints will be gratefully accepted.
1) SX270 - http://tingox.googlepages.com/sx270
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