Possible Duplicate:
Where did the other .8 GB of RAM go?
Why does Windows only show about 3.5GB of my 4GB+ of RAM?
Does anyone know why in Windows 7 Resource Monitor shows that I have 8 GB of RAM installed on my computer, but I only have 3.2 GB available as 4.8 GB are in "Hardware Reserve". I researched this issue and tried going into msconfig and making sure that in the boot options the number of processors and max memory options were turned off. I also opened the computer up and reseated each of the memory sticks while clearing out any dust that was in there.
Some info on the system I am using:
OS: Windows 7 Enterprise 64-bit Edition
CPU: AMD Phenom X4 9750
Memory: 4 X 2GB DDR2 memory
Motherboard: MS-7548 (Aspen)
Any help would be much appreciated.
