Archive Home

Casebuy LCD EZ Power Supply Tester 3 E-mail
Reviews - Featured Reviews: Power
Written by Olin Coles   
Monday, 14 May 2007
Table of Contents: Page Index
Casebuy LCD EZ Power Supply Tester 3
PSU Testers: Past and Present
Final Thoughts and Conclusion


When I first began repairing computers, power supply units caused me the most problems. When a PSU begins to fail, or is faulty out of the box, it is sometimes difficult to determine because the symptoms are similar to other faulty hardware components. One of the best investments I ever made was the PSU tester; until now. CaseBuy now offers a digital LCD display on the EZ Power Supply Tester III. Benchmark Reviews shows you just how important this tool is, and why every technician, overclocker, enthusiast, and even gamers could benefit.

Casebuy LCD EZ Power Supply Tester 3

The power supply industry is filled with misdirection and illusion. Do you really need a kilowatt of power, which is enough to power an entire household full of appliances, or do you just need to replace your suspect power supply unit? Sometimes the answers can be confusing, because marketing hype has done a great job of convincing you that bigger is always better. This is why I use tools to assess the condition of all the equipment I test.

CaseBuy has been in the business of offering simple Power Supply Testers for quite a long time now. They began with their original EZ Power Supply Tester i (1), which was designed for 20-pin ATX power supplies. Shortly thereafter the 24-pin version was released, and the EZ Power Supply Tester ii (2) was born. These two testers are great, because they are super-simple and give me immediate feedback on the power supply unit. But now CaseBuy has done one better, and released the LCD EZ Power Supply Tester iii (3).

The EZ Power Supply Tester line of products offered by CaseBuy is based on the Top & Tech Enterprises line of products. The EZ Power Supply Tester ii (2) is manufacturer part number PS-124 and SKU 14907. The LCD EZ Power Supply Tester iii (3) is manufacturer part number PS-224 and SKU 14909. Top & Tech Enterprises is an production/engineering company and licenses these products to only a few select distributors, such as CaseBuy and CoolMax.

About the Company: CaseBuy Tech Corporation

CaseBuy has been in the industry for several years now, but you might not have realized it since they are based in Asia. With two locations, CaseBuy offers power supply and computer case products to partners.


Tel: +86-769-87295833,+86-769-87803566
Fax: +86-769-87295318


  • LCD displays ATX power voltages
  • Tests 20-pin and 24-pin power supplies
  • Tests SATA power
  • Tests Pentium 4 power connector
  • Tests PCI-Express power connectors
  • Tests Xeon power connectors
  • Tests Floppy drive connectors
  • Tests standard 4-pin power supply connectors
  • Tests for +3.3V, -12V, PG, +5VSB, +12V, -5V, +5V outputs
  • Aluminum Case
  • Accurate Voltage indicator +/- 0.1V
  • Displays ATX P.G. values
  • Low or High PG values alarm
  • ATX output connectors check
  • Over voltage alarm
  • No Voltage alarm
  • Low Voltage alarm


  • Case Material: Aluminum
  • Thickness: 1.0mm
  • Dimensions: 126x63.7x17.5mm
  • Characteristic: LCD Monitor and Pocket size
  • Color: Black
  • NW: 13.5KG, GW: 14.5KG, Cu/ft: 1.4

Each Voltage Normal Range:

+5V, +3.3V, +5VSB is ±5%
+12V1, +12V2, -12V is ±10%


Normal Voltage range

Display Voltage range

Lower (A) Higher (B) Min. (C) Max. (D)
+5V 5.0V +4.75V +5.25V 4.0V 6.0V
-12V -12V -11V -13V -10V -14V
+12V1 12V 11V +13V 10V 14V
+12V2 12V 11V +13V 10V 14V
+3.3V 3.3V +3.14V +3.47V 2.0V 4.5V
+5VSB 5V +4.75V +5.25V 4.0V 6.0V
PG 0ms 990ms



# LCD EZ Power Supply Tester 3joxus_winner 2010-04-06 04:01
LCD EZ Power Supply Tester 3 is new product, i have in old version not LCD used. nice..nice...
Report Comment
# Power SupplyDaniela 2012-02-17 11:18
My name is Daniela, I need to get the Power Supply Tester II with LCD display. Do you have someone in Brazil that I can atener representative?
Report Comment

Comments have been disabled by the administrator.

Search Benchmark Reviews

Like Benchmark Reviews on FacebookFollow Benchmark Reviews on Twitter