It will depend on the overall system draw (gfx card, drives, fans), but unless you're trying to power a fair bit of kit, I'll give a qualified 'probably'. Visit a few PSU calc sites and get an impression of what your system might draw at most.
I recommend 1.5x your likely max draw as a decent overhead for efficiency and upgrade options (e.g. if the estimated top draw is around 250w, then 375w would be the minimum I would consider). Systems will run on less, but the PSU will be hotter, and probably need replacing earlier.