i want to wake up a pc (atx power supply) at a certain time, either from internal rtc, or from an external device (maybe a pic) over the ring signal on the serial interface. does the pc have to be in standby to react to such startup command, or does this also work when the pc is switched off? thanx tino -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads