I think from your logs you have the 945 chipset (like I do); I came to the conclusion the chipset only allows a total of 4GB of physical address space - and that includes space for PCI devices etc - hence why you see less than the total 4GB.
However, I'm a bit surprised your BIOS managed to believe there was 8GB! Dave -- Kernel not recognizing the proper amount of ram. https://bugs.launchpad.net/bugs/407143 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs