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LCD ATX PC Power Supply Tester

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Quoting product code: A48GF


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£ 2.99

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About this product


Product overview

• Easily view the voltage produced by your ATX power supply (PSU) using the LCD screen
• Tests 24-pin and 20-pin motherboard, 4-pin power, 8-pin power, 6-pin PCI-e power, 4-pin Molex, SATA and floppy connectors
• Shows +5V, +12V1, +3.3V, -12V, +12V2, +5VSB and PG (power good) values
• Beeping and blinking of figures help you to easily see when there is abnormal readings
• Lightweight, compact and easy to bring carry around with you

What can I do with this tester?
You can use this PC power supply (PSU) tester to quickly and easily check the condition of your power supply. The power supply is one of the most important part of your computer and you can cause serious system damage by using a faulty unit, so it’s important to perform regular test. This tester has connections for 20-pin or 24-pin motherboard, 4-pin CPU power, 8-pin CPU power, 6-pin PCI-e power, 4-pin Molex, SATA and floppy connectors. The LCD display gives you an easy way to see how much power is being supplied on each voltage rail, making it quick to identify a faulty power supply.

How can I tell when there is abnormalities with my power supply?
A beeping alarm and the relative digital reading will blink to notify you when either one of the readings are unusually high or low. In addition, if the detected voltage is too high a "HH" value will be displayed and a "LL" value for low voltage. "LL" will also display when no voltage is detected.

Rated 5 out of 5 by from Worked great for me identifying a dodgy modular sata power link that had been intermittently crashing my computer. Instructions don't specify how to test pci-e connector but sticking in place of supplementary mb power connector seems to do the trick
Date published: 2014-11-11
Rated 5 out of 5 by from Very quick delivery. Vey well packged.A quality component that does exactly what it says on the tin.Would highly recommend shopping online at Maplin.
Date published: 2014-11-11
Rated 3 out of 5 by from Nice enough unit but some instructions for use would be nice. E.g., which end of the socket do you connect a 20 pin plug? What should the three LEDs show - all on, all off or what?
Date published: 2014-11-11
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20/24-pin ATX motherboard
4-pin 12V power connector (P4)
8-pin 12V power connector (P8)
6-pin PCI-e connector (P6)
4-pin Molex connector
SATA connecter
Floppy drive connector
Power outputs tested +5V, +12V1, +3.3V, -12V, +12V2, 5VSB, PG (Power good)
Alarms PG value, low voltage, over voltage and no voltage
Material Brushed aluminium casing
Dimensions (W x D x H) 120.6 mm x 60.5 mm x 17 mm
Package content
Power supply (PSU) tester

Do I plug in the 24 pin and 8 pin CPU connector at the same time?

Asked by: Lyna
No you would test these individually.
Answered by: Billy
Date published: 2016-09-03

Is there an online manual for this? - it's all very well it bleeping rudely at me!.... Thanks

Asked by: DanB
I have emailed a copy of the instructions to you; These can be requested by emailing
Answered by: PaulaC
Date published: 2015-07-17

can this device test a tv power supply
Asked by: shaun taylor
this is unlikely unless a particular TV utilises the same conneciton design and voltages as a PC ATX power supply.
Answered by: DM
Date published: 2015-07-17

Can I use this kit to test any Dell`s PSU.
Asked by: Patrick
Yes the product does support that.
Answered by: LC
Date published: 2015-07-17

Does this device simulate a load on the PSU. A simple multimeter will tell me if the required voltage is present. I need a device that will show what happens when the PSU is under load.
Asked by: Dave A
Unfortunately not, we do not sell a loading device.
Answered by: LC
Date published: 2015-07-17

Can the PSU protection circuits be tested or just the votlage outputs?
Asked by: N. Wood
just the voltages on the connections are tested
Answered by: DM
Date published: 2015-07-17

Is this simply a rebadged version of CaseBuy''s EZ Power Supply Tester 3? I''m certainly looking forward to getting my paws on one of these - the blue model has saved me _so_ much hassle with "iffy" hardware at work.
Asked by: DynoRoddy
this is made by guiding technology but the technology behind it is pretty much the same.
Answered by: DM
Date published: 2015-07-17
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