hi may be a very trivial question, but have you switched to 4 GB under "Processor type and features/High Memory Support" in the kernel config?
imre On Sat, Sep 26, 2009 at 03:44:15PM +0200, j.andra...@gmail.com wrote: > Hello, > > last week, when booting a virtual machine, I discovered that my laptop > only recognizes one of the RAM modules (supposed to be 1 GB, but truly > providing 880 MB). I realized this when VirtualBox complained that I had > configured more than the available RAM to the virtual machine. I had not > changed the virtual machine configuration, and the virtual machine had > about 950 MB assigned (and my physical host, only had 880 MB). > > Since I previously had 2 GB of RAM, I assumed one of the chips was broken > somehow. I replaced one of them, and I still got this output for the > "free" command: > > $ free > total used free shared buffers > cached > Mem: 902264 892608 9656 0 23624 621432 > > So I put the original module back on, and changed the other one. I > entered the BIOS, and it detected 2048 MB of RAM. I run a test on the > memory (from the BIOS), and everything seemed allright. But my Debian > keeps seeing only 902264 of RAM. > > I downloaded a new Kernel, re-compiled, but everything is still the same. > I am running Debian Sid, if that could matter, but I can't see how that > would affect the amount of RAM available. > > Running lshw, I get the following ouput: > > *-memory > description: System Memory > physical id: a > slot: System board or motherboard > size: 2GiB > *-bank:0 > description: SODIMM DDR2 Synchronous 533 MHz (1.9 ns) > product: 9905293-014.A00LF > vendor: 7F98000000000000 > physical id: 0 > serial: 41CC9DE7 > slot: DIMM #1 > size: 1GiB > width: 64 bits > clock: 533MHz (1.9ns) > *-bank:1 > description: SODIMM DDR2 Synchronous 667 MHz (1.5 ns) > product: 9905295-066.A00LF > vendor: 7F98000000000000 > physical id: 1 > serial: 66078142 > slot: DIMM #2 > size: 1GiB > width: 64 bits > clock: 667MHz (1.5ns) > > Could the difference between the clocks available on the RAM chips only > allow for one of them to be used? > > Thank you in advance, > > Best Regards, > > -- > Jonás Andradas > > Skype: jontux > LinkedIn: http://www.linkedin.com/in/andradas > GPG Fingerprint: 678F 7BD0 83C3 28CE 9E8F > 3F7F 4D87 9996 E0C6 9372 > Keyservers: pgp.mit.edu | pgp.rediris.es -- Imre Vida, M.D., Ph.D. Division of Neuroscience and Biomedical Systems IBLS, University of Glasgow West Medical Building Glasgow, G12 8QQ, U.K. Tel.: 0044 141 330 5143 Fax.: 0044 141 330 5481 eMail: i.v...@bio.gla.ac.uk -- -- To UNSUBSCRIBE, email to debian-laptop-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
