From mboxrd@z Thu Jan 1 00:00:00 1970 From: lmsensorslist@nodivisions.com Date: Thu, 11 Mar 2010 20:38:05 +0000 Subject: Re: [lm-sensors] Wrong temperatures reported for Core2Duo CPU in Message-Id: List-Id: References: <781687b2e6d2a27726f35a316f5bf821.squirrel@webmail.nodivisions.com> In-Reply-To: <781687b2e6d2a27726f35a316f5bf821.squirrel@webmail.nodivisions.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lm-sensors@vger.kernel.org > Today I installed Windows XP on this same system, to see what it would > report for the core temperatures. I installed 3 apps for this: SpeedFan, > Core Temp, and Real Temp. Here's what they reported while idle and after > 10 minutes of high load (all 3 temperature apps reporting simultaneously): > > SpeedFan: idle 49C, loaded 70C > Core Temp: idle 54C, loaded 75C > Real Temp: idle 59C, loaded 80C > > The Core Temp & Real Temp apps explicitly show what they're using for > TjMax: 85C and 90C respectively. And from the idle/load temps it looks > like SpeedFan is probably using 80C. lm-sensors/coretemp are 10 degrees > higher still. > > So which is correct? Is the TjMax value published by Intel, and/or > definitively known to be a certain value? I searched intel.com and the > datasheet for my CPU (the E6600) but didn't see it. And this tomshardware > piece seems to say that Intel deliberately obfuscates this information > (read the update at the bottom): > > http://www.tomshardware.com/news/intel-dts-specs,6517.html > > If SpeedFan is correct, I feel much better about my CPU; but if > lm-sensors/coretemp is right, I'm more worried. Sorry for the double-post, but I meant to re-iterate just for completeness' sake: the idle/loaded temps reported by lm-sensors+coretemp under Linux are ~73C/93C, in contrast to the lower temperatures reported by the 3 Windows apps mentioned above. Thanks, -- Anthony DiSante http://nodivisions.com/ _______________________________________________ lm-sensors mailing list lm-sensors@lm-sensors.org http://lists.lm-sensors.org/mailman/listinfo/lm-sensors