Why use an 850watt power supply, when it is only drawing a maximum of 50 watts? Sure it is 80+, but the efficiency graph that is referred to starts at 20% load, which is 170w dc, which is
about 188w ac. Since this system is using about 1/4 of that power, the load is roughly 5%. There are 80+ power supplies rated at 200w or so. I am certain the celeron would use significantly less power when paired with a reasonable power supply.
This was the same problem with tomshardware reviewing the intel atom, last year. They picked some monster power supply, which was inefficient at low power loads.
Looking around, I found http://blogs.zdnet.com/Ou/?p=771
a 200w 80+ power supply for $55. I am sure there are others.
about 188w ac. Since this system is using about 1/4 of that power, the load is roughly 5%. There are 80+ power supplies rated at 200w or so. I am certain the celeron would use significantly less power when paired with a reasonable power supply.
This was the same problem with tomshardware reviewing the intel atom, last year. They picked some monster power supply, which was inefficient at low power loads.
Looking around, I found http://blogs.zdnet.com/Ou/?p=771
a 200w 80+ power supply for $55. I am sure there are others.