I'm not sure I'm new to upgrading comps outside of ram and drives ect. for the money price was right. A friend bought me a new emachines with Celeron Dual core 2.0 Ghz and good ram ect. but i was wondering if i could swap out the cpu for a better one i know what the FSB it has and class of cpu's it supports. i was looking a core 2 duo or core 2 quad they match and are supported by the board i no PSU and fans would need updated as well but what all would i Have to do or would the stock emachines install of window and my bio mess with me. as i said i'm kinda new to the more in depth tweaks. Any help is appreciated.