</font><blockquote><font size="1" face="Trebuchet MS, Verdana, Arial, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Trebuchet MS, Verdana, Arial, Helvetica, sans-serif">Originally posted by vapd:
<strong> Actually I have another q, can any of you advise me on how to test a poss faulty ATX psu? I have a good quality multimeter and fear that a certain psu might have blown a mobo, so obviously I am loathed to try it in another machine. But I have no idea of how to use my meter </strong></font><hr /></blockquote><font size="2" face="Trebuchet MS, Verdana, Arial, Helvetica, sans-serif">Actually, bad PSU could destroy some of ICs on the motherboard...
For checking suspected PSU I would recommend to test it separately from motherboard.

Short "power-on" signal wire with any of "ground" wires of the PSU (any of ASUS motherboard's manual does have power connector pinouts description,by the way).
PSU have to start. Disconnecting that "power-on" signal from "ground" - power OFF. Check all the voltages - one of multimeter's probes (black) should be connected to the "ground" (or PSU's case) - another one (red) - to the pin beeing tested. Be carefull! <img border="0" title="" alt="[Wink]" src="wink.gif" />