XG Vigor 500 Power Supply
 

Well, from this we can see little variation in the voltage readings; the Vigor 500 is holding its ground when it comes to supplying the right voltage constantly. I tested this while running Sandra 2004 Pro, 3d Mark 2005, and all cam within 0.01v of what we have above.

http://www.lanaddict.com/rev/132/1/