Model # PSC08C-05P019, and uses an Intel Pentium Dual Core T4500 (SLGZC) at 2.3Ghz, 1M cache, 800FSB. I want to upgrade the CPU to its highest possible specs for this model of laptop. I just swapped it out and tried to replace it with an Intel Core 2 Duo T9600 at 2.8Ghz, 6M cache, 1066FSB. The computers power light and Hard drive light come on, but nothing shows on the screen, so I assume this CPU is not compatible. Does anyone know what the highest CPU is that can be used on this specific model of laptop? Any help is appreciated.