sora :
Krishna Moorthy :
Yup thats all fine you could maybe give yourself slightly more headroom with the power supply i think you would be safer with a 600watt for when you want to overclock or add more ram or more fans.
This, a 600W PSU will allow for more upgrade space.
With your current setup, a 500W is more than enough.
The minimum power requirement for a 650ti is 400W
A 500W would be more than sufficient to power your whole system, including additional fans
Even if you are looking to overclock, your motherboard will hold you back a bit
The only time you would really need a 600W is if you are going sli, in which case your motherboard does not support that
But yes, for upgrade space, 600W is good