Have an Acer J2900 based MiniITX mainboard that simply refuses to turn on and gives me *nothing* (tried different PSUs too, all items removed, different RAM, even popped the RTC battery and tried without RAM to see if I can get it to complain, PSU fan won't spin up even - tests fine with PSU tester).
First place for me to start would be the turn-on circuit but while I have plenty of laptop schems/boardviews I noticed I don't have a single one for a miniITX or standard PC mainboard (I'm assuming that almost all of them will have a very similar turn-on circuitry setup).
*edit: yes, I've tried a different switch for the on/off button, and just shorted it.
First place for me to start would be the turn-on circuit but while I have plenty of laptop schems/boardviews I noticed I don't have a single one for a miniITX or standard PC mainboard (I'm assuming that almost all of them will have a very similar turn-on circuitry setup).
*edit: yes, I've tried a different switch for the on/off button, and just shorted it.
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