On Wed, Dec 03, 2008 at 12:00:03PM +0100, Dario Lesca wrote: > Now the BIOS show correctly 4Gb of RAM, but Fedora10 x86_64 show only > 3Gb of RAM (also smolt show 3Gb of RAM): > > [root@lesca ~]# free > > total used free shared buffers cached > > Mem: 3093172 2771984 321188 0 1712 1549504 > > -/+ buffers/cache: 1220768 1872404 > > Swap: 6291448 93716 6197732 You have a 945 chipset. It can only address 4GB of physical address space, and some of that address space has to be used to provide access to PCI devices. It's common for a gigabyte or so to be reserved for that, which means that you get a maximum of 3GB. You'll need a more modern motherboard chipset if you want to support more. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list