The Coolmax PS-124 power supply tester is to help you check the ATX power. Just plug and wait, the LED light will show you what you need to know. If the power good signal is too low or too high, it will alarm. If the power output is working, the LED will turn on and a short alarm will alert you that it is working. If the power output fails, there will be no LED light display or alert. It's as easy as switching a light on and off. Coolmax's PS series is easy to use, to the point, and accurate.

Warning: This product is designed only for power supply output tests. Do not leave it connected to the power supply unattended. It generates heat and could possibly damage your power supply.

This product is a simple tester for switching power supply. It makes it easy to test the power supply output.
1. Turn-on your power supply.
2. Plug-in your 24 pin power supply connector to mini tester.
3. Check LED light if ON or OFF
(+5V. +12V. +3.3V. -5V. -12V +5VBS. PG)
-If the power output is working, the LED will light and you will hear a sound
-If the power output fails, you won't see the LED light and no sound
4. Plug the HDD con, check +12V, +5V.
5. Remove the HDD, Plug p4 (p6/p/8) con, check +12V.
6. Remove p4 (p6/p8) con, plug from FLOPPY con, check +12V, +5V.
7. Remove FlOPPY con, plug SATA con, check +12V, +5V, +3.3V.
8. Do not plug wrong position when you use P4 connector.

BRAND:	COOLMAX
MODEL:	PS-124

10-17-2014
Reviewer: T.K. (2)
I needed one of these real bad and I felt this one from FrozenCPU was the best one I could find with a reasonable price to boot! Good price good equipment no complaints.

09-06-2014
Reviewer: Regn (1)
This device does exactly as described, and is great for testing out your PSU before continuing on with a build. Be careful not to plug your 24-pin connector in all the way, since it is frustrating to remove after you are done testing.

01-12-2011
Reviewer: JLA (1)
After I learned the ATX 20/24 pin had to be plugged in as well as one each of the other connectors. This works great. Pinpointed and confirmed problems.

12-15-2010
Reviewer: Drew Bliss (3)
Satisfied with use of this tester. Gives relatively detailed results about the current functionality of power supplies in any PC troubleshooting situation. Great to make sure a PSU is working, even if it cant really tell a quality PSU from a decent one. Beeping is annoying as hell, though it serves its purpose: wish it wasn''t quite so loud.

07-26-2010
Reviewer: Hani (4)
has all power connections, clear LCD, push & hold activation button, black and what matter most... it actually WORKS.