1) Turn on your power supply
2) Connect your 24 pin power supply connector to the mini tester
3) Check the LED light whether it is on or off (+5V +12V +3.3V -5V -12V +5VSB PG)
4) Plug HDD with check +12V +5V
5) Remove the hard drive plug p4 (p6/p8) with check +12V
6) Remove p4 (p6/p8) with FLOPPY plug with check +12V +5V
7) Remove the Floppy with connect SATA with Check +12V +5V +3.3V
* Specification
1) Power supply: 20/24 pin (ATX connector)
2) Voltage test: +12V +12V +5V -5V +3.3V 5V Stand by (SB) 12V power Good (PG)
3) Connectors: Floppy HDD CDROM SATA 4-pin (P4) 8-pin (dual CPU) 6-pin (PCI-Express)