Why doesn't my server doesn't recognise more than 4GB RAM even with Physical Address Extensions under Windows Server 2003 SP2? I thought PAE should enable the server to use more RAM than 4GB but having upgraded the machine so it has 7GB RAM, Windows only sees 4GB of it. The RAM modules are all recognised by the server administrator software (2 x 2GB, 2 x 1GB and 2 x 512MB). Is there anything I can do to get it to 'see' the extra 3GB?
Thanks
If you're running Windows Server 2003 x86 Standard edition, then the only thing you can do is upgrade to a different edition. If you're on x64, check the motherboard manual for any limitations or ram requirements.
Additionally, try to make sure that the added 3 GB work on their own. If they do, try running an x64 bootcd version of linux and see if it boots and works well.