Date: Sat, 01 Sep 2007 22:53:53 -0400 From: Lanny Baron <lnb@freebsdsystems.com> To: jonathan michaels <jlm@caamora.com.au> Cc: Rihad <admin@azuni.net>, ticso@cicely.de, freebsd-hardware@freebsd.org Subject: Re: Compaq ProLiant 6400R dram above 4Gb [was Re: Intel SR1500AL doesn't see 4 GB] Message-ID: <46DA25C1.9000703@freebsdsystems.com> In-Reply-To: <20070902114320.55981@caamora.com.au> References: <46D85080.3020503@azuni.net> <20070901100254.GC54895@cicely12.cicely.de> <20070902114320.55981@caamora.com.au>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi, If you install FreeBSD 6.2-AMD/64 you will be able to use all available memory. Regards, +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= Lanny Baron FreeBSD Systems High Performance Servers and RAID Systems Toll Free: 1.877.963.1900 http://www.freebsdsystems.com +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= jonathan michaels wrote: > On Sat, Sep 01, 2007 at 12:02:55PM +0200, Bernd Walter wrote: >> On Fri, Aug 31, 2007 at 10:31:44PM +0500, Rihad wrote: > >>> I'm attempting to install FreeBSD 6.2 on Intel Server System SR1500AL >>> with 4 gigs ram and CPU: Intel(R) Xeon(R) CPU 5130 @ 2.00GHz >>> (2002.99-MHz 686-class CPU). The install goes OK, but FreeBSD doesn't >>> recognize that there's 4 gigs of ram unless I rebuild the kernel with >>> PAE enabled; it sees only ~2.5 gb otherwise. And there's a suspicious >>> white line emmited during boot: like "1.5 gigs above 4 were ignored". >>> What's up with that? As I'm new to high-end hardware, am I using the >>> right FreeBSD build of i386? Why can't it see 4 gigs without PAE? >> You only have 4g physical address space without PAE and your board takes >> 1.5G for memory mapping and such, so you only have 2.5G for RAM. >> Most boards just claim 0.5G, but 1.5G is not that unusual. >> Either use PAE, install amd64 if your CPU is 64bit capable or live with >> just 2.5G. > > I am in a similar position, except I recently upgraded my server (Compaq > ProLiant 6400R) by adding two more Xeon 500/100 Mhz L2 1 Mb and added 4 Gb > dram to the original 1512 Mb .. now I am in the same sort of position > with FreeBSD telling me that it will be ignoring the top 1512 Mb or > there abouts > >> There is no other option, since this is a hardware limitation. > > My Xeons are the 32 bit versions so I suppose that in my case I get to > use PAE ?? or do I loose the "top" 1512 Mb, or does my machine loose > that memory completely and I would be better moving it to another > machine ?? > > thanks in advance > > most kind regards > > jonathan >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?46DA25C1.9000703>