Physical Memory in XP

Hi, I have a EVGA nforce 680i Mother Board with an Intel Duo E6750 processor running Windows XP. I have loaded 4 GB of Ram but for some reason the physical memory only reflects about 2.8 GB. The Bios seems to show 4 Gigs but not the operating system. I have been reading about PAE switches etc but not sure if I understand completely. Can anyone tell me why the system is not recognizing all the Ram/physical memory? Is there a software program out there that can be run to change the OS to recognize all the memory? Here is what Everest says is happening with the memory……… Physical: Total 2814 Mb Used 453 Mb Free 2360 Mb Swap Space: Total 4702 Mb Used 279 Mb Free 4422 Mb Virtual: Total 7516 Mb Used 715 Mb Free 6800 Mb Any advise would be greatly appreciated!!!!!!!!!!!!! Thanks

Sadly, this is typical of 32-bit systems and this is also why many experts recommend installing no more than 3Gb of RAM. The problem boils downs to hardware overhead.

See:

http://www.dansdata.com/askdan00015.htm
http://www.microsoft.com/whdc/system/platf…PAE/PAEmem.mspx

Well thats annoying……….I read youre links so now I at least understand. Thanks for the response. Cheers!

Well thats annoying

Yeah, but understand it applies to all 32-bit operating systems to one degree or another, not just Windows.