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Special Forums Hardware Overheating causing system shutdowns Post 302430790 by Corona688 on Friday 18th of June 2010 05:52:06 PM
Old 06-18-2010
Quote:
Originally Posted by Narnie
Here is the most recent kernel error.
Where are you getting these errors? If you're reading them from the logfile, understand that severe things like kernel panics won't be written to it -- a crashed system writes no files. To get really bad messages you have to watch the messages from a raw system console.

Where it says "machine check events logged" you can get more info by running the "mcelog" command. Though I think that buffer gets cleared by a reboot...

Quote:
It never says it is shutting down. It just "dies" even after saying the temp/speed is normal.
It's pretty hard for the kernel to fake a thermal throttling, I think it's really overheating. If linux has taken control of the fans away from your BIOS, glitched readings from lm_sensors could keep your fans at low speed even under heavy load. Bad calibration in lm_sensors.conf could prevent the fans speeding up as fast as they need to. Try disabling lm_sensors so it doesn't seize control of the sensors, leaving the fan under BIOS control. Try cat-ing the temperature from something like /proc/acpi/processor/CPU0/THRM (if available).

Last edited by Corona688; 06-18-2010 at 06:58 PM..
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LIEBERT(8)							    NUT Manual								LIEBERT(8)

NAME
liebert - Driver for Liebert contact-closure UPS equipment NOTE
This man page only documents the hardware-specific features of the liebert driver. For information about the core driver, see nutupsdrv(8). SUPPORTED HARDWARE
This driver supports some Liebert UPS equipment with a contact-closure interface. This includes the UPStation GXT2 with their contact-closure cable. The smart mode ("Multilink") cable is not supported by this driver. EXTRA ARGUMENTS
This driver does not support any extra settings in the ups.conf(5). BUGS
This driver does not yet support shutdowns by raising DTR. Be aware that shutdowns are not possible with the stock contact-closure cable. You may have to build another cable with DTR connected through to the UPS for it to work. There is no way for this driver to detect the hardware or cable. It will start up successfully even if no UPS is present. This is a fundamental limitation of any contact-closure driver. SEE ALSO
The core driver: nutupsdrv(8) Internet resources: The NUT (Network UPS Tools) home page: http://www.networkupstools.org/ Network UPS Tools 05/21/2012 LIEBERT(8)
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