Best Power Supply Tester: Reviews, Buying Guide and FAQs 2022

by Linea Lorenzo

There are many problems associated with the computers we use each day. Most of the challenging PC problems to troubleshoot are associated with the power supply. Impulsive rebooting, recurring parity message, hard disk or fan failing to spin, and overheating are the most common problems.

Amazingly, you can test power supply system-related issues with the right tool. And a power supply tester is one of the exclusive tools you can rely on today. It is a reliable and flawless electronic device you can use to determine the source of computer power supply problems.

Picking the best power supply tester may be a daunting task if you do it for the first time. Luckily, here are the top seven best power supply testers we will recommend to you on any given day.

Editor's Recommendation: Top Power Supply Testers in 2022

What Is a Power Supply Tester?

A power supply tester is a device used to test the functionality of a power supply. It can be used to test both AC and DC power supplies. Power supply testers are used by electronic technicians and engineers to troubleshoot and repair electronic devices.

How Does a Power Supply Tester Work?

A power supply tester is a handy tool that can be used to test the functionality of a power supply unit (PSU). It can be used to test both ATX and ITX PSUs. A power supply tester typically consists of two parts: a main unit and a cable. The main unit is connected to the PSU via the 24-pin ATX connector, while the cable is connected to the 4-pin CPU power connector. To use the power supply tester, simply connect it to the PSU and turn on the switch. The LED will then indicate whether the PSU is functioning properly or not. If the LED does not light up, then there may be an issue with the PSU. If the LED lights up, then the PSU is most likely working properly.

Expert Tips for Choosing a Power Supply Tester

1. Decide which features are most important to you.

As mentioned above, some testers come with more bells and whistles than others. If you only need a basic tester, then you can probably get away with spending less money. However, if you want a comprehensive tool that can test all aspects of your power supply, then you'll need to be willing to spend a little more money.

2. Consider ease of use.

Some testers are easier to use than others. If you're not very familiar with electronics, then you might want to purchase a tester that is very user-friendly. On the other hand, if you're more experienced with electronics, then you might prefer a tester that has more features and options.

3. Determine how much money you're willing to spend.

As mentioned above, there are a variety of testers available at different price points. If you only need a basic tester, then you can probably get away with spending less money. However, if you want a comprehensive tool that can test all aspects of your power supply, then you'll need to be willing to spend a little more money.

4. Read online reviews.

Before purchasing a power supply tester, it's a good idea to read online reviews. This way, you can get an idea of what other people think about the various testers on the market.

5. Ask for recommendations.

If you know someone who is familiar with electronics, then they might be able to recommend a good power supply tester for you.

Top 7 Best Power Supply Tester Reviews 2022

Top 7 Best Power Supply Tester Reviews 2022
Top 7 Best Power Supply Tester Reviews 2022

1. Optimal Shop Computer Power Supply Tester

Optimal Shop 20+4 Pin LCD Computer Power Supply Tester For SATA IDE HDD ATX ITX BYI Connectors-Black
Optimal Shop 20+4 Pin LCD Computer Power Supply Tester For SATA IDE HDD ATX ITX BYI Connectors-Black

Topping the list of the best PSU testers in the market today is the Optimal Shop tester. It is a one-of-a-kind tester you will, without a doubt, fall in love with. It's built to test the power supplies and troubleshoot SATA connectors. The 8-in-1 ATX tester supports the rigorous testing of 20-pin/24-pin integrated drive electronics, floppy disc, HDD, and SSD. You will fruitfully check whether your ATX power supplies are working or turned on or off by a PC motherboard signal.

It comes with a unique and robust aluminum alloy casing. It's lightweight, easy to carry, and sturdier enough for regular use. It also guarantees good thermal conductivity for safe use and operation. Furthermore, it's a corrosion resistance model you can use in different work settings. This tester has a powerful 1.8″ LCD screen where the output voltage is displayed. All the captured data is clear and easy to read. And when your power supply PG (power good) signal fails, a buzzer alarm will set off, indicating a problem and that the voltages are not within specifications.

From your test results, you will know the kind of maintenance and diagnostics to undertake. Don't have qualms about making Optimal Shop your number one personal computer power supply tester.

Key Features:

  • It is made from aluminum alloy material
  • The ultimate tool for most computer repair people
  • 8-in-1 ATX power supply tester
  • Beep alarm
  • 1.8" LCD screen

Pros:

  • Easy to know when power supply failure occurs
  • Easy to read
  • Durable and lightweight
  • Portable
  • Corrosion resistance

Cons:

  • It doesn't come with an instruction guide

2. Thermaltake Dr. Power II Automated Power Supply Tester

Thermaltake Dr. Power II Automated Power Supply Tester Oversized LCD For All Power Supplies - AC0015
Thermaltake Dr. Power II Automated Power Supply Tester Oversized LCD For All Power Supplies - AC0015

This automated power supply tester is one of the best models in the market. What more to know? It is the best device you can use and troubleshoot all power supply unit problems. This testing tool will support all ATX supplies from the ATX12V unit with motherboard specification 2.3. It makes it easy and practical to check whether your power supply can produce correct output voltages or your PC is working correctly.

The oversized LCD panel is an exclusive addition to this tester. It displays all the voltages readings for easy and quick troubleshooting. You don't have to stress or waste time checking voltage readings from your power supply unit. It comes with power good (PG) alarms and will alert you when the power supply to your computer or motherboard is unstable. It's the correct tool to check voltage readings for all motherboard supplies and rails, specifically +12V/5V/+3.3V/5VSB/ 12V. Make this electronic device from Thermaltake your go-to option and diagnose your computer power supply quickly and stress-free.

Key Features:

  • Large LCD panel
  • Built-in alarm
  • Supports all ATX power supply
  • Built-in output connectors

Pros:

  • Sturdy and durable
  • Affordable
  • Simple and straightforward to use
  • Easy to read

Cons:

  • Not accurate
  • Difficult plugging in connectors

3. Computer PC Power Supply Tester

Computer PC Power Supply Tester, ATX/ITX/IDE/HDD/SATA/BYI Connectors Power Supply Tester, 1.8'' LCD Screen (Aluminum Alloy Enclosure)
Computer PC Power Supply Tester, ATX/ITX/IDE/HDD/SATA/BYI Connectors Power Supply Tester, 1.8'' LCD Screen (Aluminum Alloy Enclosure)

With this device, you will have an exceptional 8-in-1 power supply tester easy to use. This tester supports the voltage of 20-pin/24-pin interface and SATA connectors. It makes it easy to run a few tests and ensure there are no potential hitches that might affect your computer's performance.

Use this tester also to check floppy 4-pin/8-pin and PCI-e 6-pin interface connectors. The 1.8″ LCD screen will help display the different voltage tests of the SATA/IDE interface. And when your power supply voltage test is beyond standard specifications, this tester will set off a buzzer alarm. Hence, it's easy to know when your PC power supply unit is faulty.

The aluminum alloy housing makes this tester a stand-out choice. This tester can last many years of day-to-day use, checking power supplies and on different types of computers. Generally, this tester is easy to carry, light, and resistant to corrosion. It's also economically priced and a must-have for IT experts and tech enthusiasts.

Key Features

  • 8-in-1 ATX power supply
  • It comes with a beep alarm
  • 1.8"LCD screen
  • Quality construction

Pros:

  • Lightweight and portable
  • Sturdy and durable
  • Corrosion resistance
  • Easy to read

Cons:

  • It doesn't have an input protection
  • No instruction guide

4. HDE Power Supply Tester

HDE 20+4 Pin LCD Power Supply Tester For ATX, ITX, BTX, PCI-E, SATA, HDD
HDE 20+4 Pin LCD Power Supply Tester For ATX, ITX, BTX, PCI-E, SATA, HDD

With an HDE power supply tester, you can quickly check your pc power supply and avoid motherboard-related problems. As you use this tester, you won't struggle to test your computer for likely power supply problems. It supports ITX, ATX, and BTX motherboard configurations. You can test multiple connectors from those that use SATA power, floppy drive connectors, and standard 20-pin and 24-pin power supply units. Besides, you can run voltage tests 3.3V, +5V, +VSB, and +12V stress-free.

This well-built tester comes fitted with several automatic alarms. They will indicate possible errors through blinking and long signals. Probably in an event where power supply values are lower or higher than expected. You will as well know when there is no voltage in your PSU. This HDE tester is lightweight and measures 4.75" x 2.5" / 12.07cm x 6.35cm. You won't struggle to connect and run it in different PC power suppliers.

Key features:

  • It is made of aluminum alloy material
  • It comes with a 1.8″ LCD screen
  • Compatible with up to 8 connectors
  • Features a beep alarm

Pros:

  • Easy to read
  • Easy to know in case of failure
  • Lightweight and portable
  • Corrosion resistance
  • Compatible with multiple computer power supplies
  • No batteries required
  • Ideal for most personal computers

Cons:

  • It doesn't test all failing PSU's

5. Sodial (TM) Power Supply Tester

SODIAL(TM) ATX, BTX, ITX Power Supply Tester With LCD Display
SODIAL(TM) ATX, BTX, ITX Power Supply Tester With LCD Display

This outstanding electronic device is built to last many years of extensive use, thanks to the fantastic specifications it holds. It helps detect any possible power supply issues that might tamper with the performance of your computer.

It's easy to connect and run this tester to the personal computer you use at home or workstation. With a Sodial TM power supply tester, it's easy to avoid possible hitches associated with faulty power supplies. It's compatible with BTX, ITX, and ATX motherboard testing and maintenance.

Once you check the voltage on your connectors, the LCD screen will provide valuable data that will make it easy to prevent possible harm. The digital LCD is easy to read, and you can make informed decisions depending on the results you get. This all-in-one power supply tester's housing material is durable enough to last many years of use.

Get this tester if you are an ambitious hobby PC user for functional power supply tests. It's a cost-saving type of PSU tester you will fancy carrying around when you wish.

Key Features:

  • Quality construction
  • It features a digital LCD screen
  • Compatibility
  • High performance

Pros:

  • Easy to read
  • Robust and durability
  • Supports ATX BTX and ITX connectors
  • Ideal for home and office use
  • Easy to use
  • Affordable

Cons:

  • Inadequate connecting instructions

6. Comidox Computer Power Supply Tester

Comidox 1Pcs 20/24 Pin LCD Computer PC Power Supply Tester For ATX BTX ITX TFX SATA With Buzzer Automatic Alarm
Comidox 1Pcs 20/24 Pin LCD Computer PC Power Supply Tester For ATX BTX ITX TFX SATA With Buzzer Automatic Alarm

The Comidox computer power supply tester is easy to operate. You can efficiently run it to troubleshoot common PSU problems in a short time. This LCD power supply tester will satisfy all your requirements and curiosity about troubleshooting faulty computers.

Once connected to the ATX connector of your power supply unit, it will immediately start testing your power supplies. It will automatically and quickly check the voltage output of each power supply system. This tester is efficient for use and compatible with TFX, BTX, and ITX computer power supplies.

You can also use it to check voltages of each power supply unit 3.3V, +5V, +12V,-12V, SB, +5V, PG and output connectors P4, P6, P8, SATA and IDE. The LCD voltage will only be detected on the 20-pin or 24-pin interface. The LCD screen will display all the voltage and power-good (PG) values acquired from these motherboards.

This PSU checker also comes with an automatic buzzer alarm that sends a warning signal if the various parameters you check exceed the average values. To your surprise, the resultant value will flash on the display screen. Significantly, don't have second thoughts about picking this power supply tester. Its design, small and beautiful appearance will leave you in awe.

Key Features:

  • It features a buzzer alarm and corresponding value flash
  • It has an LCD screen
  • Compatibility
  • It is made with high-quality material

Pros:

  • Supports different interfaces
  • Easy to read
  • Automatic alarm
  • Multiple functions
  • Connectors fit properly

Cons:

  • Made from plastic which wears out quickly.
  • It doesn't come with an instruction guide.

7. JacobsParts Power Supply Tester

JacobsParts 20+4 Pin LCD Power Supply Tester For ATX, ITX, BTX, PCI-E, SATA, HDD
JacobsParts 20+4 Pin LCD Power Supply Tester For ATX, ITX, BTX, PCI-E, SATA, HDD

Get the JacobsPart power supply tester if you are wondering how to troubleshoot your computer power supply problems. This tester is easy to use and allows you to check and quickly diagnose power supply problems. It aids test the 20/24-pin ATX power supply, SATA connectors, the ITX, and BTX power supplies efficiently.
It is a convenient tester that makes it easy and fast to undertake voltage tests regardless of the number of devices you are checking. You can test output voltages that include +3.3V, +5V, +VSB, and +12V and monitor PG value. The built-in LCD screen will display the resulting power supply voltage data for easy study and specification.

This awesome tester is equipped with functional alarms to notify you if there is low voltage, over-voltage, and abnormal power good value. It will make a long buzzer if the corresponding voltage or power-good value is incorrect. Hence, you will know your power supply is faulty.

Another selling point of this power supply unit checker is that it's small and has a beautiful appearance. It measures 4.75″ x 2.5″ / 12.07cm x 6.35cm, so it's light enough to carry around. Buy it today and check the unstable power supply that might damage your PC, causing unexpected losses.

Key Features:

  • Built-in LCD
  • It comes with a buzzer alarm
  • Compatible with multiple connectors
  • Lightweight

Pros:

  • Lightweight
  • Easy to operate
  • Easy to read
  • Supports ATX, BTX, and ITX connectors

Cons:

  • It requires a 24 pin for the tester to get power

Buying Guide for the Best Power Supply Tester

If you're in the market for a new power supply tester, there are a few things you'll want to keep in mind to ensure you get the best possible product. Here are some factors to consider when shopping for a power supply tester:

1. Accuracy

When it comes to power supply testers, accuracy is key. You'll want to make sure that the tester you choose can accurately measure the voltage and amperage of your power supply. Otherwise, you could end up with inaccurate readings that could lead to problems down the road.

2. Ease of use

You'll also want to make sure that the power supply tester you choose is easy to use. Look for a model that has an intuitive interface and clear instructions. That way, you can get the most out of your tester and avoid any frustrating headaches.

3. Durability

Power supply testers can be expensive, so you'll want to make sure that you choose a model that's built to last. Look for a tester with high-quality construction and robust components. That way, you can be confident that your tester will withstand repeated use.

4. Price

Of course, price is always a consideration when shopping for any type of product. Power supply testers can range in price from around $30 to $300, so it's important to set a budget before you start shopping. Once you know how much you're willing to spend, you can narrow down your options and find the tester that's right for you.

5. Warranty

Finally, be sure to look for a power supply tester that comes with a solid warranty. That way, you can get repairs or replacements if your tester breaks down within the covered period.

By keeping these factors in mind, you can be sure to find the best power supply tester for your needs. With the right tester on hand, you can keep your computer running smoothly and avoid any costly repairs down the road.

Benefits of Using a Power Supply Tester

A power supply tester is a valuable tool that can help you troubleshoot and diagnose problems with your PC's power supply. Here are some of the benefits of using a power supply tester:

  1. Power supply testers can help you identify bad or faulty components in your power supply. This can save you time and money by avoiding the need to replace the entire power supply.
  2. Power supply testers can help you determine if your power supply is providing enough power to your system. If it is not, you may need to upgrade to a higher-wattage power supply.
  3. Power supply testers can help you troubleshoot problems with your system's stability. If your system is crashing or freezing, a power supply tester can help you identify the cause of the problem.
  4. Power supply testers are relatively inexpensive and easy to use. You can find them at most computer stores or online.
  5. Power supply testers can save you time and frustration by helping you quickly identify problems with your PC's power supply.

Types of Power Supply Testers

There are a few different types of power supply testers available on the market.

The Multimeter

The most common type is the multimeter. This type of tester measures the voltage, current, and resistance of a power supply. It can also be used to test for shorts and leaks.

The Oscilloscope

Another type of tester is the oscilloscope. This device measures the waveforms of a power supply. It can be used to diagnose problems with the output of a power supply.

The Logic Analyzer

The last type of tester is the logic analyzer. This device can be used to test digital circuits. It can also be used to test analog circuits.

These are the three most common types of power supply testers. Each has its own advantages and disadvantages. Choose the type of tester that best suits your needs.

Buy them at Walmart, eBay, Etsy (quality guaranteed)

Computer PC Power Supply Tester, ATX/ITX/IDE/HDD/SATA/BYI Connectors Power Supply Tester, - Walmart, Etsy, Ebay

Kingwin PC Computer Power Supply Tester, Digital LCD Screen, ATX/ITX/IDE/HDD/SATA/BYI - Walmart, Etsy, eBay

Computer PC Power Supply Tester 20/24 4/6/8 PIN for ATX, ITX, BTX, PCI-E, SATA, HDD, IDE - Walmart, Etsy, eBay

Thermaltake Dr. Power II Automated Power Supply Tester Oversized LCD for All Power - Walmart, Etsy, eBay

Comidox 1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with - Walmart, Etsy, eBay

Optimal Shop 20+4 Pin LCD Computer Power Supply Tester for SATA IDE HDD ATX ITX BYI - Walmart, Etsy, eBay

EVGA 650 Bq, 80+ Bronze 650W, Semi Modular, 5 Year Warranty, Includes Free Power On Self - Walmart, Etsy, Ebay

Optimal Shop 20/24 4/6/8 Pin Power Supply Tester for SATA,IDE,HDD,ATX,ITX,BYI - Walmart, Etsy, Ebay

Pomya Power Supply Tester Checker for Computer 20/24 Pin HDD SATA Floppy for Any Computer - Walmart, Etsy, eBay

Computer PC Power Supply Tester ATX Power Supply Tester PSU Tester, PC Power Supply - Walmart, Etsy, eBay

20/24 4/6/8 Pin Computer PC Power Supply Tester with LCD Display and Buzzer for ATX, ITX, - Walmart, Etsy, eBay

Tiamu 24-Pin Female ATX PSU PC Power Supply Starter Tester Start Up Jumper Ridge Cable - Walmart, Etsy, eBay

Conclusion for Power Supply Tester Buyers

There are several benefits to using power supply testers. First, they can help ensure that your power supply is providing the correct voltage and amperage. This is important because if your power supply is not providing enough power, it can cause your computer to crash. Second, power supply testers can help you identify problems with your power supply before they become serious. This means that you can fix the problem before it causes any damage to your computer. Finally, power supply testers can help you save money by allowing you to buy a new power supply if your old one is not working properly.

It should never be that daunting to pick the best power supply tester if you know the key features to look for. There are different types of power supply unit testers in the market. However, always pick a distinctive design that will satisfy your needs.
Power supply tester prices may vary, but pick one convenient, easy to use, durable, and easy to carry. Choose a power supply tester that will make it easy to diagnose computer power supply issues. You will not miss a model that fits your preferences.

About Linea Lorenzo

Linea was born to love drawing and just a few tech gadgets. While not working or sleeping, he often spends hours to look through the coolest, latest gadgets at different shopping sites, drooling about them. He also likes to keep things clean and tidy - now that the reason you see so many cleaning devices and electronics reviews at linea.io. Ah yes, he made the site also just for that. Occationally, he invited friends to share their expertise around here too. Linea received Bachelor of Arts in Arts & Letters at Sacramento State University.

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