Featuring a backlit, bright blue LCD display - our power supply tester can verify that every part of your power supply is operational. It gives voltage read-outs and beeps if there is a problem. It even works with 20-pin power supplies (though it will complain about missing second 12 volt rail).
To use it simply plug the tester into your power supply's 24 pin molex connector and it will give a full diagnostic of your power supply. If it reports a very low, high or no voltage at all, it is highly recommended to stop use of the power supply.
This Power Supply Tester can test 20-pin power supplies - please see photo on right demonstrating this ability
Warning: This product is designed only for power supply output tests. Do not leave it connected to the power supply unattended. It generates heat and could possibly damage your power supply.
PLEASE NOTE:
If your power supply tester produces a constant beep and the 12V2 indicates "LL" this does not mean either your power supply or the tester is defective. It simply means the 2nd 12 volt rail is not detected. This is a result of either testing a power supply that does not have a 2nd 12 volt rail, or that you have not plugged in a connector carrying the 2nd 12 volt rail. PCI Express, 4-pin P4, and 8-pin motherboard connectors should all use the 2nd 12 volt rail, and when plugged into the tester, the "LL" indication and beeping noise should cease.