Date: Mon, 01 Oct 2007 19:34:56 +0200 From: mato <gamato@users.sf.net> To: Kevin Oberman <oberman@es.net> Cc: freebsd-current@freebsd.org Subject: Re: GSoC2007: cnst-sensors.2007-09-13.patch Message-ID: <47012FC0.5020001@users.sf.net> In-Reply-To: <20070925224318.33A6645012@ptavv.es.net> References: <20070925224318.33A6645012@ptavv.es.net>
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Kevin Oberman wrote: >> From: martinko <gamato@users.sf.net> >> Date: Tue, 25 Sep 2007 20:35:44 +0200 >> Sender: owner-freebsd-current@freebsd.org >> >> Chuck Swiger wrote: >> >>> The threshold temperature varies depending on the exact part, but is >>> generally around 65 Celsius-- and is hot enough that you don't really >>> want to encounter it in normal operation, as it's a sign that cooling is >>> not adequate for the system to continue to operate safely at full >>> speed. Most of the Intel CPUs also include a second thermal circuit >>> called THERMTRIP which fires around 95 Celsius which will shut the CPU >>> down entirely to prevent a catastrophic failure. >>> >>> >> I've got Pentium-M at 2GHz and when fully loaded it heats up to 79 >> Celsius. Could it be OK or do I have a faulty laptop ? >> > > My Pentium-M 2GHz system will get well above 80C when doing big builds > and this is well below the defined PSV (94.5C) and CRT (99C) > levels. These things can run very hot and be perfectly happy. > > OTOH, it might be time to clean the heatsink in the machine. That can > hurt heat transfer as a machine gets older. > > FWIW, the spec on the Pentium-M 2GHZ system is 105C, so CRT at 99 looks > right. > Mine says: hw.acpi.thermal.tz0._PSV: 105.0C hw.acpi.thermal.tz0._CRT: 110.0C This is Asus W1N laptop.
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