Im looking to upgrade my ram, its a vaio rb40 (Specs posted here: http://reviews.cnet.com/desktops/sony-vaio-rb40/4507-3118_7-31382755.html ) on that page and many others it says it supports up to 2 gigs of ram. I recently updated my bios and also used everest to find my mobo make and model. looking at the intel page for the mobo it says it supports up to 4 gigs (http://support.intel.com/support/motherboards/desktop/d915gag/sb/CS-027104.htm ) so which is it? is there software/test that i can run that'll tell me?