what psu graphic can i run

Solution
Well, Novatech makes decent PSUs, but that 300W one won't make you go any where. You need to upgrade that PSU to 400W or even 500W to sustain GPU power drain. If you can't upgrade, then nvidia GTX 750Ti is the best card for that PSU (but it's expensive — $165 on Amazon).
Well, Novatech makes decent PSUs, but that 300W one won't make you go any where. You need to upgrade that PSU to 400W or even 500W to sustain GPU power drain. If you can't upgrade, then nvidia GTX 750Ti is the best card for that PSU (but it's expensive — $165 on Amazon).
 
Solution