What this sub-forum BADLY need is a PSU MFG. directory with Toll-Free Support numbers and online links to their forums and/or RMA instructions. i just bought my first Cooler Master PSU and unless I am very much mistaken it is DOA.
A brand-new PSU.
[EDIT] I found this/these numbers but I don't hold out much hope:
COOLER MASTER [Chino, CA]
contact the place you bought it from. If it's DOA you should be able to return it to them. If you can do that i would advise against coolermaster, they arent the most reliable brand. although its not unusual to have a DOA PSU of ANY make or model from time to time.