Date: Fri, 7 Aug 2015 15:08:40 -0500 (CDT) From: "Valeri Galtsev" <galtsev@kicp.uchicago.edu> To: "Quartz" <quartz@sneakertech.com> Cc: freebsd-questions@freebsd.org Subject: Re: 64bit P4 vs mfsBSD Message-ID: <62161.128.135.52.4.1438978120.squirrel@cosmo.uchicago.edu> In-Reply-To: <55C5042C.3040101@sneakertech.com> References: <55C3D434.6030005@sneakertech.com> <8BCBAC22-6B6F-4385-8D0F-ACE59D996FD9@elde.net> <slrnms9umd.1krp.naddy@lorvorc.mips.inka.de> <55C5042C.3040101@sneakertech.com>
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On Fri, August 7, 2015 2:17 pm, Quartz wrote: > >>> If you look up the id from cpuid on ark.intel.com, you should get >>> a definitive answer. >> >> If you look up the Atom E6xx CPUs (used e.g. in the Soekris net6501), >> that site claims that they are 32 bits only. In reality, these >> CPUs do support 64-bit mode, as numerous owners can testify to. >> >> As other people have said, the presence of long mode in the CPU ID >> flags tells the true story. > > While we're at it, intel's util says this is a P4 541 and that it's > family 15 model 4 (a claim shared by every OS I've run on it) whereas > wikipedia claims the 541 is family 15 model *3*. > Intel is the manufacturer of that chip. Wikipedia's information is maintained by random bunch of individuals (with respect to the job they are doing...). The choice of primary source of information seems to be obvious. I would verify on intel website what model number 541 resembles to though (yes, I know, getting information wise their website is ugly compared to wikipedia...) Valeri ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
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