My p4c800 e delux mobo sometimes wont turn on! The green LED is illuminated on the board itself but every now and then when i press the switch to turn the comp. on nothing happens. I have tested the switch with a multimeter and that is ok. I disconnected the switch from the mobo and shorted the two pins together and still nothing. I stripped out all the wires and just left the mobo wires in but still nothing. Tried 3 different power supplies but still the same. removed the mobo from the case and sat it on an anti static bag with the power supply connected, shorted the two pins. I tried this about 3 times then the 4th it powered up. Then i tried it again and nothing happend it would not power up. any one know what could the fault be? its still in warranty so should i do an rma or am i missing something?