Yea never go by software readings... Check out one of my systems that is under load on the cpu and 2 gpus 24/7 readings. power and cooling 750watt no issues at all. Checked with my volt tester on the 12v and 5v rail and the 12v is at a solid 12.05v 5 volt is at a 5 also.
Some boards are just buggy and dont show right like the sabbertooft r2 am3..