Just bought a new motherbard, processor, ram, and PSU. Assembled and installed the old HD. The MB is MSI K9N6PGM2-V, processor is Athlon 64x2, and two 2 gb sticks memory. The system started right up and is running fine. When I open system properties, I only see 3 gig of Ram. I installed two 2 GB sticks. The MB has onboard Graphics NVIDIA GeForce 6100 / NVIDIA nForce 430 MCP. The spec say that this uses shared memory. Does this have something to do with only showing 3 gb for the system, like 1 gig is for the graphics? Thanks for any input.....let me know if more information is needed.