I have a Toshiba A15-S127,I want to upgrade the CPU from 2.0Ghz. to 2.4Ghz.The processor i have is a Intel Celeron 2.0Ghz,256 L2 cache,400Mhz.,Socket 478.The one i want to replace it with is a Intel Celeron 2.4Ghz,256 L2 cache,400Mhz.,Socket 478.Is there anything else i need to do other than change them out?