Computer Power Supply Tester with LCD Screen

Today we review the Computer Power Tester II from Focal Point.
This tool is useful in the PC repair and maintenance trade or for computer hobbyist. Product Link: – FocalPrice Power Supply Tester with Free Shipping

Can detect ATX, BTX, ITX computer power supply quickly
With large backlite LCD
Displays voltage and PG values

General Specs:
Color Black
Type Computer power supply tester
Specifications 20/24-PIN (ATX connector)
Voltage +12 V,-12V, +5 V,-5V, +3.3 V, 5V Stand by (SB) 12V Power Good (PG)
Connection Ports Floppy, HDD, CDROM, SATA, 4PIN (P4), 8PIN (DUAL-CPU), 6PIN (PCI-EXPERSS)

Package Details:
Weight: 127.33 g
Size: 21.5*10.00*1.5 cm


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hankus253 says:

Steve, I think you’ll find that you should only plug in one peripheral connector at a time in addition to the motherboard power connectors.

GuruBrew says:

Thank you 🙂

Michael Perugini says:

you are not suppose to plug in more than one attachment connector.. both the 20/24 and CPU are to be connected at same time but the attachments connectors are only one at a time. (read the instructions)
Also LL is Lower than Min values or no voltage and HH would be higher than max.


1. Plug-in 24pin and plug-in (P4 / P6 or P8) connector into the tester before turn on power.
– 20pin ATX PSU: use P4 connector.
– 24pin ATX PSU: use P6 connector.
– EPS PSU: use P8 connector.
2. Turn on your power supply
3. LCD show each voltage and P.G value on the screen automatic and you can hear 2 beep sounds.
4. ATX power output connector checking one by one.
– If power output is working, the LED will light on
– If power output failed, the LED will not light on.
5. Plug-in (HDD/Floppy) connector and check LED light. (+12V1/+5V).
6. Plug-in SATA connector and check LED light (+12V1/+5V/+3.3V).
7. Remove the connector after your checking.
8. DO NOT plug-in 2 connectors in to the tester at the same time. ( Only 24pin and (P4/P6/P8)
9. Abnormal voltage detected will not display on the screen.
10. No voltage detect, “LL” will display on the screen.
11. Detected Voltage lower than Min. value, “LL” will display on the screen.
12. Detected voltage higher than Max. value, “HH” will display on the screen.
13. When detected voltage is lower than table value (A), will alarm.
14. When detected voltage is higher than table value (B), will alarm.
15. P.G value detected lower 100ms or higher 900ms, P>G value is abnormal and alarm.

When abnormal happened, it will alarm and relative digit blink on the screen.

Todd Perry says:

Where  is the ITX connection? ITX is a mini ATX connector.

Boris M says:

beeping from the third power supply is because you did not connect 4pin to tester

Joseph says:

Very good video showing how to test the power supply with a power supply tester

joe husosky says:

Steve, thanks for this demo, I had one of the idiot light versions and it never worked. Glad to see this working so good.

Steven Espinosa says:

Thank you for the review! Very Helpful.

cuddles6938 says:

They even have a motherboard tester for $3.49 USD. Might have to pick one up just to check all the old PC boards I have laying around like the 486 etc. One day I’ll get around to building that Mame cabinet for arcade games for my Foster Brother to have a blast with.

Jhoel Ivan says:

Hola Amigo Tengo ese testeador igual el pg marca 190 pero palpita hace
pitido es normal a que se debe descarte otra fuente normal el
Power Good no palpita nada

Frank Miller says:

Enjoy your reviews, good easy to follow intructions and logic. Well done even a couple of years after you produced this! The tester you profiled is just what I have needed. Thanks a lot!

GuruBrew says:

Ill check it out thanks

ElectronicWizard says:

Very interesting. Thumbs up.

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