Turn on power supply plug in a 24-pin power supply connector to mini-tester and check the LED lights tester not only gives voltage readings for each line but also tests other connections such as your floppy drive and peripheralsPrevent accidental damage to a computer also test floppy drive and peripheral connectionsTests 20-pin and 24-pin power supplies SATA power Pentium 4 power connector PCI-Express power connectors Xeon power connectors floppy drive connectors and standard 4-pin power supply connectorsAlso tests for +3.3V -12V PG +5VSB +12V -5V +5V outputsIncludes 1-year warranty
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