I yesterday used muy computer like always 4 hours in the morning, but in the afternoon I wanted to play for a while, when suddenly I heard and saw a spark, so I turn off the computer, the next morning I remove the power supply, cleaned it and test it in a other old computer, and it worked fine, I have not tested it in mine regular computer. Could have been an excese of dust what caused the spark and the smell, or I need more tests?