Upgrading from Core 2 Duo

[BlazerX]

Hi i want to upgrade my Core 2 Duo E6750 to a COre 2 Quad would it fit in the same socket or would i have to buy a new Mobo,btw my system is a HPDC700 3GB,320GB HDD,1DVD/CD/LightScribe,with Geforce 9800GT,
and would i have to upgrade my power supply? which is 365w

 

[popatim]

I'm afraid I cant find much info on a dc700. Please provide the full HP model number.
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=120&prodSeriesId=71006&prodTypeId=12454&prodSeriesId=71006&objectID=bph07555

 

[BlazerX]

Whoops sorry it was the HPDC7800 Convertable MiniTower