Have a toshiba 1555cds and I want to upgrade a little. I already put a 128 mb stick(max) and I want to add a hard drive and cpu. I called toshiba and they were worthless. Hard drive as long as it fits should be ok but can I add a processor and does it have jumpers I can change? I know it has to be a laptop chip. Was looking at a cleron 600. Can anyone help?