2 gb ram

I have a query about my ram which is 2GB DDR2 667mhz and its single channel. Motherboard Config INTEL 945 CHIPSET PI945Z--FSB 1066--DUAL CHANNEL SUPPORTED (DDR2 667)--SOCKET 775. I am having PHEONIX BIOS V6.00 PG. Operating Systm is Windows 7 Ultimate.So now back to the query, while checking my...