Cpu upgrade for optiplex gx620

[windows1984]

i want to upgrade my dell optiplex gx620 processor from a celeron d 3.06ghz to a duo core.
motherboard is 775socket and chipset 945g.
will i be able to upgrade? and what processor?

 

[imtiax]

I also have an LGA 775 Socket. I suggest you upgrade to a Core2Quad 8200 which is what I have.

http://www.newegg.ca/Product/ProductList.aspx?Submit=ENE&N=40000343&IsNodeId=1&Description=lga%20775%20cpu&name=Processors%20-%20Desktops&Order=BESTMATCH

You should be able to buy any of those and use it as they are all LGA 775 Socket processors.