How do I interpret power supply tester results?

Pillowfight · 10-10-2007, 03:57 PM

I have a lot of old PSUs I collected from a recycling center and have been testing them with a Coolmax PSU tester. The problem is that neither the package nor the website is particularly helpful in interpreting the results I am getting. Even my A+ book was vague.

Most of the units are coming up with a flashing "LL" on the +12V2, which I am assuming means it simply isn't present. I am more concerned about the reading I am getting on two or three of them in the PG section (I'm not even sure what "PG" is). One was flashing and beeping 970ms, and another 990ms. Everything else seemed to be within normal limits.

Any idea what this means? Thanks!

**linderman** · 10-10-2007, 06:11 PM

just out of curosity have you tried this ?????? its much more accurate and comprehensive

http://www.techsupportforum.com/hard...-stickies.html

Pillowfight · 10-10-2007, 07:19 PM

Thanks for the tip...sadly I do not have a multimeter...I am really looking to just verify good or bad more than check detailed performance. A lot of the PSUs I got are from older Dells or Compaqs and might be proprietary, meaning it might not follow the pin chart anyway...

I read that the PG means Power Good...but I'm still not clear on what the numbers I'm getting might signify.

10-10-2007, 03:57 PM	#1 (permalink)
Pillowfight Registered User Join Date: Jan 2007 Location: CA Posts: 86 OS: WinXP Pro My System	How do I interpret power supply tester results? I have a lot of old PSUs I collected from a recycling center and have been testing them with a Coolmax PSU tester. The problem is that neither the package nor the website is particularly helpful in interpreting the results I am getting. Even my A+ book was vague. Most of the units are coming up with a flashing "LL" on the +12V2, which I am assuming means it simply isn't present. I am more concerned about the reading I am getting on two or three of them in the PG section (I'm not even sure what "PG" is). One was flashing and beeping 970ms, and another 990ms. Everything else seemed to be within normal limits. Any idea what this means? Thanks!

10-10-2007, 06:11 PM	#2 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,437 OS: win 2000 pro / Win XP pro My System	Re: How do I interpret power supply tester results? just out of curosity have you tried this ?????? its much more accurate and comprehensive http://www.techsupportforum.com/hard...-stickies.html __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial

10-10-2007, 07:19 PM	#3 (permalink)
Pillowfight Registered User Join Date: Jan 2007 Location: CA Posts: 86 OS: WinXP Pro My System	Re: How do I interpret power supply tester results? Thanks for the tip...sadly I do not have a multimeter...I am really looking to just verify good or bad more than check detailed performance. A lot of the PSUs I got are from older Dells or Compaqs and might be proprietary, meaning it might not follow the pin chart anyway... I read that the PG means Power Good...but I'm still not clear on what the numbers I'm getting might signify.