Date: Thu, 16 Jun 2011 16:05:47 -0700 From: Robert <traveling08@cox.net> To: Chuck Swiger <cswiger@mac.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: OT: Strange memory reading (hardware) Message-ID: <20110616160547.68a628e9@dell64> In-Reply-To: <110DEE0E-92A6-4202-B072-0EC5104B839E@mac.com> References: <20110616141030.0f3dc5f3@dell64> <110DEE0E-92A6-4202-B072-0EC5104B839E@mac.com>
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On Thu, 16 Jun 2011 15:11:22 -0700 Chuck Swiger <cswiger@mac.com> wrote: > On Jun 16, 2011, at 2:10 PM, Robert wrote: > > I have tested with all of the sticks installed and with one at a > > time. When all of the sticks are installed, BIOS show a total of > > 2752 MB of RAM. If any of the sticks are installed alone in any of > > the four slots, BIOS then shows 960 MB instead of the 1024 one > > would expect. > > Sounds like the BIOS is stealing 64MB for video RAM. > There's likely a BIOS setting which governs the size of this. > > As for not being able to access all 4GB, this is a FAQ. > If you run a 32-bit system, the top gigabyte or so of address space is > reserved for memory mapped I/O reservations like AGP, PCIe, etc. > > If your hardware is capable of running in 64-bit mode, do that. > > Regards, Chuck Thanks for the reply. I should have been clearer. During POST only 2752 MB is shown. Also, I am running the amd64 version of freenas. As I said, I am 100% sure this is a MOBO hardware problem and I was just trying to compute the math. Robert
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