Mainboard dead?

[Galraedia]

I have a A-Trend ATC-6130 which doesn't boot. Whenever I connect the power supply to the board the power supply doesn't start; however the power supply will start if not connected to the mainboard. Any ideas?

[gwood]

Sounds like a bad power supply.

An atx power supply should not be on if it is not connected to the mother board.

here are some references for testing:

http://www.duxcw.com/faq/ps/ps4.htm

nice photos:
http://www.h-i-r.net/2008/03/testing-at ... upply.html

older:
http://www.certiguide.com/apfr/cg_apfr_ ... Supply.htm