They're like $10-15 on Amazon, just buy one that has a lot of reviews. There isn't much too them, I own several cheapo ones and they all work just fine. Not sure if it'll provide much info for you though, the testers are more of a "good or bad" thing, it's not going to tell you anything in between. I suspect my Power Supply is failing. Can you provide some context to what your issues are or why you think it's the PSU? Answer from -UserRemoved- on reddit.com
Reddit
reddit.com › r/buildapc › any recommendations for a psu tester?
r/buildapc on Reddit: Any recommendations for a PSU tester?
May 16, 2025 -
I suspect my Power Supply is failing. Rather than pay a repair shop to test, I'd prefer to buy a tester and have it available for the future. Does anyone have experience and recommendations on which unit to go for?
Top answer 1 of 3
2
They're like $10-15 on Amazon, just buy one that has a lot of reviews. There isn't much too them, I own several cheapo ones and they all work just fine. Not sure if it'll provide much info for you though, the testers are more of a "good or bad" thing, it's not going to tell you anything in between. I suspect my Power Supply is failing. Can you provide some context to what your issues are or why you think it's the PSU?
2 of 3
1
Being well trained on a multi tester and an oscilloscope is the way. The plug and play ones? I'm not too sure on how much I buy into them unless they have a data port and can link to my digital test station. Otherwise, they're just multimeters that have a designated plug. A decent multimeter is relatively inexpensive in the world of testing, and can be useful in other areas too. Most PSU manufacturers will give you an output schematic for testing with a multimeter if you ask nicely.
Amazon
amazon.com › computer-power-supply-tester › s
Amazon.com: Computer 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) · Kingwin Digital Power Supply Tester with LCD Screen – Compatible with ATX, ITX, IDE, HDD, SATA, and BTX, Easy-to-Use Diagnostic Tool for PC Power Supply ...
What power supply tester are you using? | Overclockers UK Forums
Hi, I'm just wondering what power supply testers are you guys using? I have my old pst-64 it's a bit tired and I'm thinking of replacing it but what with? I'm struggling to find anything new that looks like it might be robust enough for regular use. Thanks in advance for your help and advice. More on forums.overclockers.co.uk
Power supply tester
I see a lot of questions about power supply’s and testing them guys and gals out there Ive been bulding pc’s since adam and eve were pups. you can jumper them, test using known good board, test using a multimeter, and oscilloscope. but heres a handy tool to keep in your kit, its not that ... More on forum.level1techs.com
0
0
October 21, 2018Atx PSU tester
What is a good make of ATX PSU tester · I have one of these that works pretty well (for a simple yes/no as to whether it provides power): · You can also just use a multimeter. However, the only true test is to swap with a known-good PSU because no tool you use will be able to tell you if ... More on community.spiceworks.com
8
3
January 9, 2018Power supply tester..... | AnandTech Forums: Technology, Hardware, Software, and Deals
I have several PS's at home, 3 in fact and i want to test these somehow. i think 1 has some problems but the other 2 i don't know. Should I buy a power supply tester for this and is this the best way to test them? I see Amazon have a selection but was hoping someone could recommend something. i... More on forums.anandtech.com
Videos
04:30
The 5 Best Power Supply Tester in 2023 - YouTube
09:42
ATX PSU tester, Unboxing and Overview - YouTube
04:21
PSU Tester Thermaltake Dr Power III (Full review) - YouTube
07:00
It's Finally UPGRADED! Thermaltake Dr. Power III (Power Supply ...
36:32
How to Test Your PC Power Supply Unit (PSU) – 4 Easy Methods ...
15:07
How To Test Your PC Power Supply Like a Pro — Paperclip Trick ...
Facebook
facebook.com › groups › pcbuilderandsetups › posts › 1560923092374392
Recommendations for a good PSU tester?
We cannot provide a description for this page right now
Tom's Hardware
tomshardware.com › pc components › power supplies
Thermaltake's power supply tester lets you know if your power supply is working properly — Dr. Power III updated with support for ATX 3.0 power supplies | Tom's Hardware
January 11, 2024 - Thermaltake has revealed the Dr. Power III universal ATX power supply tester at CES 2024. Even the best power supplies can fail, so the Dr. Power III is a nifty tester that can help you troubleshoot. Thermaltake has upgraded Dr.
PassMark
passmark.com › products › inline-psu-tester › index.php
PassMark Software - Inline PSU Tester
Most comprehensive Inline Power Supply Tester on the market.
DirectMacro
directmacro.com › home › choosing the best power supply tester in 2026
Choosing the Best Power Supply Tester in 2026
January 22, 2026 - However, sometimes, it misbehaves due to technical or manufacturing faults. That’s why a power supply tester is critical for smooth system operations. This blog post is all about how to opt for the best PC power supply tester and how to test a PSU with ease.
Amazon
amazon.com › power-supply-tester › s
Amazon.com: Power Supply Tester
Discover reliable power supply testers for ATX, ITX, and BTX systems. LCD displays show voltage readings and automatic alarms alert you to issues.
Amazon
amazon.com › psu-tester › s
Amazon.com: Psu Tester
Discover reliable PSU testers featuring multiple connector support and automatic alarm functions for quick diagnosis.
Newegg
newegg.com › p › pl
power supply tester | Newegg.com
Specifications: VDV501-851, Klein Tools, Yellow, Starter Kit, alkaline, Cable Tester, Blend, Rectangular, 1.12 pounds, 6.9 L x 3.2 W x 1.5 H inches, Battery Powered, true, Cable Tester Kit with Scout® Pro 3 Tester, Remotes, Adapter, Battery, ...
LTT Labs
lttlabs.com › categories › power-supplies
Power Supplies | LTT Labs
SFX Power Supplies PSUs with the Most SATA Power Connections Highest 100W Efficiency PSUs PSUs with Two 12VHPWR/12V-2x6 Connectors 1600W Power Supplies Corsair 1000W Power Supplies White Coloured PSUs Unique PSU Features
eBay
ebay.com › electronics › computers/tablets & networking › computer components & parts › power supply testers
Computer Power Supply Testers for sale | eBay
Get the best deals on Computer Power Supply Testers and find everything you'll need to improve your home office setup at eBay.com. Fast & Free shipping on many items!
Overclockers UK
forums.overclockers.co.uk › hardware › power supplies
What power supply tester are you using? | Overclockers UK Forums
October 30, 2023 - Have searched OCUK for PSU testers and nothing came up so posting link!! https://www.amazon.co.uk/gp/product/B07B52X5R2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 · Click to expand... Yeah i got one of those too,many years old as well ... While those things are a nice safety check to prevent anything being fried, as they put no actual load on the supply passing doesn't mean any given PSU is actually good - just not fatally bad!
Level1Techs
forum.level1techs.com › hardware hub › build a pc
Power supply tester - Build a PC - Level1Techs Forums
October 21, 2018 - I see a lot of questions about power supply’s and testing them guys and gals out there Ive been bulding pc’s since adam and eve were pups. you can jumper them, test using known good board, test using a multimeter, and oscilloscope. but heres a handy tool to keep in your kit, its not that expensive and easy to use. https://www.newegg.com/Product/Product.aspx?Item=N82E16899109003&ignorebbr=1&nm_mc=KNC-GoogleAdwords-PC&cm_mmc=KNC-GoogleAdwords-PC--pla--Tools±+Network+/+PC+Service+/+Acc.-_-...
AnandTech
forums.anandtech.com › home › hardware and technology › computer building
Power supply tester..... | AnandTech Forums: Technology, Hardware, Software, and Deals
July 21, 2017 - I don't think there is really anything out there that can truly test a PSU outside of expensive pro setups. A marginal PSU can test good with those cheap testers. For the hobbyist, the only probative way to check for PSU issues is to have a "known good" unit on hand to swap in. The testers only show if the PSU powers up and can handle a tiny load.
VOGONS
vogons.org › viewtopic.php
AT Power supply tester
Don’t date robots · Exclusive bots only zone
PCPartPicker
pcpartpicker.com › forums › topic › 472621-atx-power-supply-tester-who-has-used-one-and-are-they-any-good
ATX Power Supply tester, who has used one and are they any good - PCPartPicker
If you're a professional I'd recommend the Inline PSU Tester used by Greg Salazar (a famous pc repair youtuber).
Tom's Hardware Forum
forums.tomshardware.com › home › power supplies
Question - Psu Tester which one | Tom's Hardware Forum
December 15, 2022 - My personal opinion is that if you were going to spend $500+ dollars to check a PSU once every little while...you could have purchased 4/5 good quality PSU units new and known to be good instead. edit- I would mention that it isn't uncommon for the paperclip test to power up a PSU that is still ...
Cultists Network
cultists.network › home › psu tier list rev. 17.0g
PSU Tier List rev. 17.0g - Cultists Network
April 15, 2023 - [1] Units experiencing tripping issues with high transient power draw GPUs like AMD Vega, 6900 XT and Nvidia RTX3080/3090. Generally fixed in newer batches. [2] OTP is set too high or potentially non-functioning, unit survived the test, source : Aris (HWBusters / TPU / THW) reviews.
How-To Geek
howtogeek.com › home › windows › how to test the power supply unit (psu) in your pc
How to Test the Power Supply Unit (PSU) in Your PC
February 6, 2023 - Testing your computer's power supply unit is fairly simple. You can test the PSU with a basic jumper test, multimeter, or power supply tester.