> Hmm, could be due to the CPU speed scaling. In the BIOS I'm pretty sure
> the CPUs are both running at their maximum speed of 2800MHz, but in
> Windows and linux they scale down to 800MHz. Plugged a DMM into a molex
> connector and measured this for the performance and ondemand governors:
> 2800MHz 800Mz
> 5V 5.07 5.06
> 12V 12.03 12.04
A slightly different table:
DMM
BIOS measurement 11.985 = 12.00
W7 speedfan 12.10 = 12.02
in4/lm_sensors 3.02/3.04 = 12.03 (2800MHz)
in4/lm_sensors 3.02/3.04 = 12.04 (800MHz)
So it does look like 12V in the BIOS mode really is a hair lower than it
is in either linux or W7. Using 3.03 for the avg in4 measurement and
12.035 for the avg DMM measurement gives a scale factor of 3.97,
assuming the DMM is actually correct.
Regards,
David Mathog
mathog@xxxxxxxxxxx
Manager, Sequence Analysis Facility, Biology Division, Caltech
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