Coolmax PS228 Power Supply Tester

Posted by on Wednesday, October 7, 2009 - 4:50am

ps228Last week we reviewed a device that should be in the toolbox of every computer repairman, network tech and enthusiast: the Vantec universal adapter. Truly a bit of hardware to make life much easier. Today, we will be reviewing another product in the same class. Let me introduce you to the PS228 from Coolmax. It has a nice blue backlit LCD listing all the voltage readings for connections on a computer power supply. Furthermore, it sounds an alarm to let you know if anything is wrong.

 

Introduction to the Coolmax PS228

Last week we reviewed a device that should be in the toolbox of every computer repairman, network tech and enthusiast: the Vantec universal adapter. Truly a bit of hardware to make life much easier. Today, we will be reviewing another product in the same class. Let me introduce you to the PS228 from Coolmax. It has a nice blue backlit LCD listing all the voltage readings for connections on a computer power supply. Furthermore, it sounds an alarm to let you know if anything is wrong.

What Coolmax has to say about the PS228

The product designs with LCD to show ATX power voltage. Easy to plug with ATX power 20/24 pin and plug in (P4/P6/P8) to show the voltage on the LCD panel.


 

Packaging and contents

The PS228 comes in a simple plastic blister package backed with a cardboard piece with all the specifications and features of the tester.

Features

The product designs with LCD to show ATX power voltage. Easy to plug with ATX power 24 pin and plug in (P4/P6/P8) to show the voltage on the LCD panel.
  Easy to check ATX power supply
  Aluminum case
  Accurate voltage indicator +/- 0.1V (+12V1/+5V/+3.3V/5VSB/+12V2/-12V)
  ATX P.G. value display
  Lower or higher P.G. values alarm
  ATX output connectors check
  Lower voltage detected alarm
  Over voltage alarm
 

No voltage detected alarm

 


 

Closer look

For the longest time I have been using a power supply tester from a company called Casebuy. The unit did the job, but in a very simple manner. It had a series of lights that would come, if the power supply was working properly. But the PS228 from Coolmax is a serious upgrade from the aforementioned unit. The PS228 has a large LCD that displays the voltages of the rails of the PSU being tested. This includes multiple 12v rails up to two.

Unlike my older PSU tester, the PS228 tests all the possible cables of a PSU including SATA plugs. What I like about the PS228 is that you can test every connector on a PSU after a modding section of sleeving. We were even able to to test six and eight pin PCIe plugs as well. And if you work in an IT or server environment, you can test eight pin CPU connectors as well.


 

Conclusion

We definitely love the Coolmax PS228 around the lab. It was ideal for doing quick tests on incoming power supplies. Getting a visual readout on the different voltage rails rather than some green lights indicating if a power is in good working order is great. No more guessing if the rails are within specs. The LCD display is also very easy to read to the point no real tech knowledge is necessary. For under $20, the usefulness goes way beyond monetary value.

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