Question Is a 450W PSU good enough for this rig?

The wattage is good. As a number. But it highly depends on the psu. There's a lot of cheap knock-off psus out there that will claim that wattage, and blow if you try over 50% loads. A decent quality psu will be more than good for 450w, a piece of junk, no.
 
The wattage is good. As a number. But it highly depends on the psu. There's a lot of cheap knock-off psus out there that will claim that wattage, and blow if you try over 50% loads. A decent quality psu will be more than good for 450w, a piece of junk, no.
Hi. It's a Zebronics 450W psu. Is that good enough?
 
Hi. It's a Zebronics 450W psu. Is that good enough?
I recommend that you go with the cheapest 450W 80+ Bronze EVGA, SeaSonic, or Corsair psu. I don't know where you are, but in the states the EVGA BT 450W and the Seasonic S12III 450W are both about $40 USD. A powersupply is not something that you want to cheap out on at all.
 

You'll find reviews, critiques, answers like the above post all over the net. Basically Zebronics has a pretty bad reputation, even in Indo-Asiatic markets where they are most prevelent.

Over there, your better, budget, choices are Corsair CX, Corsair CXM, Seasonic S/M12-II, Seasonic G, Antec HCG/M, and if you absolutely must, a Corsair VS. The new black/silver series, not the old colored blocky number series.