Date: Tue, 24 Apr 2007 14:43:49 -0500 From: "Thomas T. Veldhouse" <veldy@veldy.net> To: Jonathan Horne <freebsd@dfwlp.com> Cc: freebsd-questions@freebsd.org Subject: Re: Memory >3.5GB not used? Message-ID: <462E5DF5.1060708@veldy.net> In-Reply-To: <2271.192.168.125.134.1177438307.squirrel@webmail.dfwlp.org> References: <01d301c78699$d6a36820$0300020a@mickey> <20070424140528.95287ff4.wmoran@potentialtech.com> <2271.192.168.125.134.1177438307.squirrel@webmail.dfwlp.org>
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Jonathan Horne wrote: > i have a system with 4GB memory, doing the same similar behavior. but, on top > of not using the last few hundred megs of ram, even the POST shows like 3.6 or > 3.7GB of ram. is PAE still a solution for my case? > > [jhorne@canopus ~]$ dmesg | grep memory > real memory = 3958833152 (3775 MB) > avail memory = 3875762176 (3696 MB) > My motherboard has a BIOS option as to how the memory is to be used. If it is remapped, then you can see 3.2GB from a 32-bit OS (like Windows XP or Vista x86). If I turn remapping off, then only 3.0GB will show in such a 32-bit OS. However, a 64-bit OS can see all the memory and use it accordingly. Check your BIOS. Tom Veldhouse
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