Date: Wed, 21 May 2008 13:20:17 +0100 From: Michael-John Turner <mj@mjturner.net> To: freebsd-amd64@freebsd.org Subject: Re: FreeBSD 7.0R and 7.0CURRENT (amd64) show only 2,5Gb RAM from 8Gb Message-ID: <20080521122017.GB29529@aurora.pimp.org.za> In-Reply-To: <000301c8b9d0$567196c0$1801a8c0@hellfire> References: <000301c8b9d0$567196c0$1801a8c0@hellfire>
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On Mon, May 19, 2008 at 08:49:41PM +0400, Nifty wrote: > I have two PC's based on iP965 and iG33 chipsets, > both have iC2D Quad 2.4GHz CPU and both have 8Gb (4 x 2Gb) PC2-6400 RAM. > After installing FreeBSD 7.0R (amd64) and FreeBSD 7.0CURRENT (amd64) - > on iP965 dmesg show me 2,5Gb of RAM, on iG33 dmesg show 3,1Gb of RAM :( Do either of the motherboards have a memory-hole related setting? If so, does changing it (eg to ignore the memory hole) make more memory visible to FreeBSD? This is a common 'issue' with systems that have more than ~3GiB RAM - the area of memory reserved for 32-bit PCI devices (the 'memory hole' above) can prevent access to memory beyond it. -mj -- Michael-John Turner mj@mjturner.net <> http://mjturner.net/
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