Why I buy this one ?
- Weight : .25

- 0.25

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What our customer's say!

"The Big X", Power Supply Tester 2.0 20/24

This is a great product. This one, easy to use tool can answer most of those questions that come up in the field when something is not getting power. Is it the power supply or the wires or the motherboard connectors? Of course, you can use a VOM, but first you have to do that little hand dance to get the probes on the right plugs or jacks for the first test, and then, do it over again for each connector. Anyone up for testing a 24 pin power supply? This little gadget does them all with one test.

This one stays in my tool box -- and nobody better even think about borrowing it! But, come to think of it, at the price, it's too inexpensive to stress over.

"Easy to Use", Easy as it gets. Plug the 20/24 pin molex in and read the lights. Check the other molex connectors such as the 4 pin and see if there is trouble there! EASY.

It is straight forward but does not tell what the readings SHOULD be.

Easy to carry around, slips into any tool bag or pocket.

I have had this item for over a year now and use it regularly.

"Tells if the power supply is completely dead but...", it will not detect the minor power fluctuations that might cause your motherboard to not send the power_good signal.

That is as far as this product goes. It is fairly well constructed, has LEDs and sounds to tell if it delivers power at all but ultimatly it will only test if the powersupply is completely dead, not just dead enough not to be useful.

Bottom line: It can be useful in a quick diagnosis for the price but simply because it delivers all green doesn't mean the power supply won't have problems completely hooked up to your system.

Id probibly reccomend using a digital multimeter and a paperclip to test if you have the expertice, if not this may be a low cost option to see if you have to shell out another $80 for a new PS.

"works well", the product is as promised, i have tested serveral power supplies and it has saved me time in diagnosing problems with systems. i would recommend it to any one.

"Usefull little tool", This is great for the price.

I was quickly able to diagnose whether my powersupply had died on me or if it was yet another system board issue.
I first tried it on a known good power supply just so I could see the results of what happens with a good power supply.
Then hooked it up to the one I felt was dead and yup only got one light to sorta flash a little bit and was able to replace just the part that had gone out and get my system back up and running.

I would Highly recommend this tool to any to help diagnose dead power supplies, at the price its at.

Now if your system turns on and has power supply issues then I would just use a multimeter however when you feel your system board has fried and you need a load to turn the power supply on, this is a great tool for doing just that.