Date: Thu, 16 Jun 2011 15:11:22 -0700 From: Chuck Swiger <cswiger@mac.com> To: Robert <traveling08@cox.net> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: OT: Strange memory reading (hardware) Message-ID: <110DEE0E-92A6-4202-B072-0EC5104B839E@mac.com> In-Reply-To: <20110616141030.0f3dc5f3@dell64> References: <20110616141030.0f3dc5f3@dell64>
next in thread | previous in thread | raw e-mail | index | archive | help
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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?110DEE0E-92A6-4202-B072-0EC5104B839E>