emosun

Yes you will definitely need two gb of ram. And yes psu stands for power supply. The celeron should also be changed if you want more speed out of it , but get the other parts first to see how it performs. Also please post your budget and i can help you find something.

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Speedfan-->http://www.almico.com/speedfan.php
Everest -->http://filehippo.com/download_everest_home
Benchmarks-->http://www.tomshardware.com/charts/g...Score,794.html