Ok, going to try this again, first try was aborted, not sure why. Anyway, I have a emachine T5026 with all the original equipment. My HDD died on me so I am upgrading from a 160gb to a 250gb HDD. Also, I am adding a 1gb of ram to my 512mg. I also want to change my PSU from 300w to the new OCZ modxstream PRO 600. If I make all these changes, will I need a new MOBO. Also, is the new PSU compatible with the upgrade I am planning, if not what is suggested? Any suggestions or recommendations is highly appreciated.