I have an HP m7650n which has an e6300 (1.8 ghz) cpu. like to OVERCLOCK it, but it SEEMS like the board (An Asus P5BW-LA-00) is locked (because the bios area for MODIFYING the CPU is greyed out). I just came across an e8400 core 2 duo, and was wondering if popping this BABY into my board will WORK, and if so, will it be faster?