Question: should I change my Power Source Unit to at least 400W since im trying to upgrade? My current PC has a 200W PSU that needs to be changed and I was wondering if instead of getting another 200W PSU I should get at least 400W, will my PC work without problems since the power source is double the power??  I also want to get another motherboard and CPU so is it better to just get more Watts?

Answer: 400 it's a minimum this days .. if u planing to upgrade renew ur sistem remember that the new hardwares are using a lot of eletricity ... so if u dont want to have problems which u definettly will if u use a 200psu go for the 400 or better .. u can use an 600 W psu .. the bigger the better but that only if u'll use 2graphic card's, 4hdd's, 3dvdroms etc :p
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