Posted by Deliverator on September 14th, 2006
As you might have gathered if you read my previous entry, I recently purchased a standalone power supply tester, a Coolmax PS-224. Most power supply testers simply have a series of LEDs that light up if a given line is outside a narrowly defined “good” voltage range. Better testers will have multiple LEDs for each voltage line to indicate whether a line is reading high or low and whether it is off by a little or a lot. Coolmax’s tester takes the cake, though, by essentially integrating a backlit digital multimeter into the tester and displaying the exact voltages found, as well as having the usual alarm tones and idiot lights. The PS-224 is capable of testing 20 and 24 pin ATX power supplies, as well as 4, 6 and 8 pin auxilary connectors, Molex, SATA and 4 pin floppy connectors. The built in metering checked very closely to a good standalone multimeter when using a dongle to power the supply up. I don’t believe the PS-224 places a significant load on the supply, so you have to take the results with a grain of salt, as you don’t have the same voltage sag that can occur under significant loading, but it is an excellent tool to assist in diagnosing hardware problems and is far superior to any other power supply tester I have encountered. The PS-224 is available for about $25. I purchased mine from Xoxide, from whom I have purchased several other items in the past without complaint.