... , -12V , +5V , -5V , +3.3V , +5V Stand by (SB) 12V power Good ( PG ) Connectors : Floppy, HDD , CDROM , SATA , 4pin ( P4 ) , 8pin ... is a robust voltage, tester for PC-power supply, ATX . BTX and ITX compliant, power supplies can be tested. LCD`s indicate the ... functional check in specialized trade.The methods of operation: Plug power supply 24 PIN and P4 , P6 or P8 into the ...