The Tester in Use

To test the PS-224 I decided to grab a power supply out of a Dell desktop PC that I wasn't sure was working or not. The computer was hesitant to boot so this particular power supply was pulled and replaced. Let's see what the PS-224 finds out.



In order to test the power supply you must connect the 20/24-pin cable to the PS-224, Then any additional cables that you wish to test. Next you hold down the "on" button on the tester and the power supply should power up. As you can see, the 5V rail is fine sitting right at 5.1V along with the 3.3V rail at 3.3V as shown. The 12V1 and 12V2 rails are both a little low at 11.7V. This indicates why this power supply was possibly preventing the PC from running properly. Some high end power supplies now have adjustment pots to fine tune these voltages to keep the different rails up to proper requirements. Another thing the PS-224 indicated is a fault in all three rails. This may indicate a grounding problem but it also was most likely why this particular power supply is no longer suitable to power a PC. The lack of the three yellow LEDs to the left or the LCD being lit tells me of this fault.


Here is the proper way to connect the Serial-ATA connector to the unit. As previously stated, upon first glance at the unit I was unable to determine what this connection was for but after some deductive reasoning I was able to conclude that this was for Serial-ATA as the PS-224's packaging indicated that the unit was able to test Serial-ATA power. The power supplies Serial-ATA connector slides firmly onto the PCB of the PS-224.