How to find real CPU temperature?
Hi all I'm running FreeBSD 7.2 on Intel P4 computer. The lmmon -i shows 21C and when go to BIOS shows 65C! BIOS reading seems to be correct as the CPU heat pipe is very hot to the extent cannot touch. How do I read the real BIOS temperature readings when FreeBSD is running to check whether the computer is over heating? Unga ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How to find real CPU temperature?
Unga wrote: Hi all I'm running FreeBSD 7.2 on Intel P4 computer. The lmmon -i shows 21C and when go to BIOS shows 65C! BIOS reading seems to be correct as the CPU heat pipe is very hot to the extent cannot touch. How do I read the real BIOS temperature readings when FreeBSD is running to check whether the computer is over heating? $ sysctl hw.acpi.thermal.tz0.temperature on my computer shows 56C -- Erik Nørgaard Ph: +34.666334818/+34.915211157 http://www.locolomo.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How to find real CPU temperature?
On 8/5/09, Unga unga...@yahoo.com wrote: I'm running FreeBSD 7.2 on Intel P4 computer. The lmmon -i shows 21C and when go to BIOS shows 65C! BIOS reading seems to be correct as the CPU heat pipe is very hot to the extent cannot touch. How do I read the real BIOS temperature readings when FreeBSD is running to check whether the computer is over heating? If your mainboard supports it, and depending on your CPU, you might look into sysutils/mbmon, found in the ports collection. Aside from that, what does the following command output? sysctl -a | grep temp -Modulok- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How to find real CPU temperature?
--- On Wed, 8/5/09, Erik Norgaard norga...@locolomo.org wrote: From: Erik Norgaard norga...@locolomo.org Subject: Re: How to find real CPU temperature? To: Unga unga...@yahoo.com Cc: freebsd-questions@freebsd.org Date: Wednesday, August 5, 2009, 7:03 PM Unga wrote: Hi all I'm running FreeBSD 7.2 on Intel P4 computer. The lmmon -i shows 21C and when go to BIOS shows 65C! BIOS reading seems to be correct as the CPU heat pipe is very hot to the extent cannot touch. How do I read the real BIOS temperature readings when FreeBSD is running to check whether the computer is over heating? $ sysctl hw.acpi.thermal.tz0.temperature on my computer shows 56C Here is what it show on my computer: sysctl -a | grep hw.acpi.thermal hw.acpi.thermal.min_runtime: 0 hw.acpi.thermal.polling_rate: 10 hw.acpi.thermal.user_override: 0 hw.acpi.thermal.tz0.temperature: 19.0C hw.acpi.thermal.tz0.active: -1 hw.acpi.thermal.tz0.passive_cooling: 1 hw.acpi.thermal.tz0.thermal_flags: 0 hw.acpi.thermal.tz0._PSV: 90.0C hw.acpi.thermal.tz0._HOT: -1 hw.acpi.thermal.tz0._CRT: 90.0C hw.acpi.thermal.tz0._ACx: 90.0C -1 -1 -1 -1 -1 -1 -1 -1 -1 hw.acpi.thermal.tz0._TC1: 4 hw.acpi.thermal.tz0._TC2: 3 hw.acpi.thermal.tz0._TSP: 60 so which is the CPU temperature, 19.0C or 90.0C? Where does it documented what hw.acpi.thermal.tz0.temperature means? Unga ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How to find real CPU temperature?
Unga wrote: Here is what it show on my computer: sysctl -a | grep hw.acpi.thermal hw.acpi.thermal.min_runtime: 0 hw.acpi.thermal.polling_rate: 10 hw.acpi.thermal.user_override: 0 hw.acpi.thermal.tz0.temperature: 19.0C hw.acpi.thermal.tz0.active: -1 hw.acpi.thermal.tz0.passive_cooling: 1 hw.acpi.thermal.tz0.thermal_flags: 0 hw.acpi.thermal.tz0._PSV: 90.0C hw.acpi.thermal.tz0._HOT: -1 hw.acpi.thermal.tz0._CRT: 90.0C hw.acpi.thermal.tz0._ACx: 90.0C -1 -1 -1 -1 -1 -1 -1 -1 -1 hw.acpi.thermal.tz0._TC1: 4 hw.acpi.thermal.tz0._TC2: 3 hw.acpi.thermal.tz0._TSP: 60 so which is the CPU temperature, 19.0C or 90.0C? Where does it documented what hw.acpi.thermal.tz0.temperature means? From that it appears the kernel can't read the temperature sensor, this may be a problem with the ACPI not being properly supported for your processor. The 90.0C entries are different entries that take action against overheating, if the temperature reaches 90 putting your system to sleep or throtling down speed. BR, Erik -- Erik Nørgaard Ph: +34.666334818/+34.915211157 http://www.locolomo.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How to find real CPU temperature?
On Wednesday 05 August 2009 04:04:18 Erik Norgaard wrote: Unga wrote: Here is what it show on my computer: sysctl -a | grep hw.acpi.thermal hw.acpi.thermal.min_runtime: 0 hw.acpi.thermal.polling_rate: 10 hw.acpi.thermal.user_override: 0 hw.acpi.thermal.tz0.temperature: 19.0C hw.acpi.thermal.tz0.active: -1 hw.acpi.thermal.tz0.passive_cooling: 1 hw.acpi.thermal.tz0.thermal_flags: 0 hw.acpi.thermal.tz0._PSV: 90.0C hw.acpi.thermal.tz0._HOT: -1 hw.acpi.thermal.tz0._CRT: 90.0C hw.acpi.thermal.tz0._ACx: 90.0C -1 -1 -1 -1 -1 -1 -1 -1 -1 hw.acpi.thermal.tz0._TC1: 4 hw.acpi.thermal.tz0._TC2: 3 hw.acpi.thermal.tz0._TSP: 60 so which is the CPU temperature, 19.0C or 90.0C? Where does it documented what hw.acpi.thermal.tz0.temperature means? From that it appears the kernel can't read the temperature sensor, this may be a problem with the ACPI not being properly supported for your processor. The 90.0C entries are different entries that take action against overheating, if the temperature reaches 90 putting your system to sleep or throtling down speed. _PSV = throttle down CPU speed _CRT = critical shutdown temperature Given that these are the same value, this indeed looks like ACPI problems. These values should be different, and can be quite a few degrees apart, so that the passive cooling actually has some time to do it's work. The acpi_thermal(4) man page details all the values. One can also use sysctl - d hw.acpi.thermal.tz0.passive_cooling to get a short description. If you want these values to make more sense, you should take the issue up with the acpi mailing list and be ready to do some debugging. At minimum you should provide the info outlined here: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/acpi-debug.html -- Mel ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
