220 wats adequate enough?

So basically I have quite a nice and relatively new 220W psu which is reliable (aquired free from a friend), and I was wondering if it would be able to power the new system I am about to build - it's not a gaming rig, also there will be no graphics card due to the in built in one with the processor.

Would it be able to power the AMD A8 5600k black edition (its 100w) in the AsRock FM2A55M?

Any feedback/help would be appreciated,


What is the model name on the power supply? You have to factor in other things as well like case fans hard drives etc.