Wed May 01, 2013 5:00 pm by slyguy42o
Getting a higher rated power supply wont actually affect the amount of power used. The components will draw however much they need. i.e. if you only have 100w draw then it's going to draw 100w regardless of the top end capacity of the PSU you have.
if anything a higher rated PSU running on lower specced hardware will run cooler as it's only using a small portion of it's overall rated capacity.
The key metric to look for in PSU's is their power efficiency rating. the higher the better!!