- Supply power for the power supply under test;
- Plug in your 24pin(20P) power supply connector to mini tester;
- Check the 7 LED lights if ON or OFF (+3.3, -12V, PG, +5VSB, +12V, -5V, +5V);
- Plug HDD con, check +12V, 5V lights On or OFF;
- Remove HDD, plug P4(P6/P8) con, check +12V On or OFF;
- Remove P4(P6/P8) con, plug FLOPPY con, check +12V, +5V On or OFF;
- Remove FLOPPY con, plug SATA con, check +12V, +3.3V,+5V On or OFF.