cpu memory upgrade

[imported_rxlizard]

I have a azer computer. Model aspire e380 ase380-ud480a. Ran belarc advisor and said my mohterboard is acer em61sm/em61pm. Can't find info on mother board. I have samsung memory 2 1 gig sticks-pc2-5300u-555. Can I install ddr800 or do I have to stick with ddr667 memory. Looking to put in two more sticks of ddr800 then in future replace the two sticks off ddr667 with ddr800. Also I don't know what socket type this mohterboard would like to replace my cpu. Currently have athlon 64 x2 dual core 4800. My vista rating is only 2.6. Can I put in a geforce 8800gts in this computer. I know I have to put in a new power supply. Just unhappy with computer and want to make it better.

 

[Quiksilver]

http://www.cpuid.com/pcwizard.php

use it to find the info you need to know.