When the PSU came to me it was with broken chip FSDM311, 2ohm smd resistor from the "+" on the 400V cap and broken TL431. I replace them and trough 100W lamp its works, the voltages was great. When i put it on my PC after 3 sec it blows
Now the 2ohm resistor is demaged again and the zener diode to pin3 of the FSDM311. Can you help with the value of the zener and can someone explain me what happened and why 
thanks
[url=http://www.postimage.org/image.php?v=PqLZlZJ][/url]Gratz from...