Two months old dead no power
Check the Power cable of your PC for any damaged or burn/cut. Firmly check the connection on the slot of the CPU Power Supply,
Check the Electrical outlet , or better plug the cord on a different electrical outlet.
If all of this has nothing to do and the problem was still there, possible problem on the powersupply are, it is advisable that you have to replace this part, a possible burnt or a short circuit has happen inside, due to some electrical malfunction on your area.
HOpe this helps.
Let me know for any clarification