Hi guys, I recently bought 3 more sticks of RAM (6GB) from Newegg to upgrade onto my computer. When I put one stick of RAM next to my currently installed stick, the computer won't display anything on the monitor and there is no beep from the internal speakers. So I mixed the RAM sticks up a bit, trying to see if any combination would work, and the finally I got it to work in the first and third RAM slot. I need help as to why I can't seem to add more RAM. System Specs: Mobo: ASUS M4A7TD-M evo RAM: Crucial XMS 2GB DDR3 (X4) OS: Windows 7 64-bit Any help appreciated. Thanks.