Using the Dr. Power II PSU Tester

The Thermaltake Dr. Power II power supply tester is very easy to use. If you are testing a power supply that is already installed in a PC you should disconnect ALL the power supply cables before testing (motherboard, graphics adapters, HDDs, optical drives, etc).

Basic Testing Procedure:
• Attach the 20/24-pin ATX power cable to the Dr Power II connector*
• Connect AC line power cable to power supply
• Turn On the power supply Main Power Switch (if it has one)

*Note: Connecting the PSU's 20/24-pin ATX cable is required; the other five cable connectors are optional. If you are just trying to find out if the PSU is working or not, the 20/24-pin ATX cable is all you need.  If you want to confirm that the proper voltages are actually being delivered through all the various power supply cables, they can be attached to the top side connectors (one at a time if necessary). The Dr. Power II PSU tester only applies ~8W combined load to all the DC outputs, so you don't need to worry about connecting multiple cables to get good voltage measurements.

At this point the power supply being tested should be in Standby mode and supplying +5VSB power to the Dr. Power II, which should cause the LCD display to light up blue and show the connected cable labels across the bottom of the display.

The Dr. Power II PSU tester features two different modes of operation; Manual or Automatic. To initiate testing in Manual Mode just give the Check button a quick press and the power supply should start up and the Dr. Power II display should show six parameters, as measured from the 20/24-pin ATX connector.

(Courtesy of Thermaltake)

Additional quick presses of the Check button will cycle across the other cable connectors. After about 30 seconds Dr. Power II will turn off the PSU and shut down.

A blue screen showing the six test parameters on the Dr. Power II LCD display is what you want to see and indicates the power supply under test is operating normally and all the voltages are present and within spec. It also confirms that the PG (Power Good) signal timing is happening within the recommended guidelines.

If the power supply under test does not turn on and the Dr. Power II LCD display does not light up when the Check button is pressed, this indicates a dead power supply.  (Check all your connections just be sure.)

If the power supply under test turns on and the Dr. Power II LCD display lights up red when the Check button is pressed, this indicates that there is a problem with one or more of the outputs (voltage missing or out of spec) or PG signal timing.

(+12V too low to display)          (+5V high out of spec)

To initiate testing in Automatic Mode, press and hold the Check button for at least 5 seconds. The power supply under test should start up and the Dr. Power II LCD display should light up and then automatically cycle between all the cables connected.

(Courtesy of Thermaltake)

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