About a year ago, my computer was struck by lightning, It killed the motherboard and PSU. eMachines replaced them both, but I later replaced the PSU with a better one. Ok, lets get to the point. My CPU is an Athlon XP 3000+, when my parents first bought this computer the CPU ran at 2.2 GHZ, but after the motherboard was replaced, the speed dropped to 1.3 GHZ. How can I clock my CPU back to 2.2, or higher? I have tried everything, flashed my BIOS, and it went back to normal for a bit, but then went back down, I have a 7600GS and used to get good FPS, but now they are terrible. How can I fix this?