... install and use Computer Power Supply Tester Description: 1) Turn-on your power supply2) Plug-in your 24 pin power supply connector ... check +12V 6) Remove p4(p6/p8)con, plug FLOPPY con, check +12V, +5V 7) Remove Floppy ... con, plug SATA con, Check +12V, +5V, +3.3V * ... +5V, -5V, +3.3V, 5V Stand by (SB) 12V, power Good(PG) 3) Connectors: Floppy, HDD, CDROM, SATA, 4pin(P4 ...