Gannu said:^Do not suggest Open Box deals! Read the terms and conditions of Open Box deals to find out why.
Gannu said:@OP: What power supply do you have inside the Acer machine? The AMD combo suggested by Anubis is the most ideal one which fits your budget and should give you a considerable boost from the present PDC system you have. If it's a PSU made by a reputed OEM made by Delta or the likes, that should suffice.