francisw19 Posted October 27, 2009 Share Posted October 27, 2009 I just got a Corsair HX620W for my new system. I have noticed using Everest Ultimate Edition, the +12 V rail reads at 12.60 Volts. In the BIOS, however, it shows 12.25 Volts. The 12.60 V is right on the upper limit of the tolerance and 12.25 isn't too bad. But, I'm not sure which I believe. Should I be worried about this? Link to comment Share on other sites More sharing options...
Wired Posted October 27, 2009 Share Posted October 27, 2009 Software readings are never reliable. Multimeter's the best, but the BIOS is probably close. Link to comment Share on other sites More sharing options...
francisw19 Posted October 27, 2009 Author Share Posted October 27, 2009 Thanks for the reply! I'm going to try and use a multimeter to measure the actual voltages. I have a good understanding of what to do, but I haven't done this before. Is this as simple as powering on the PC, using a molex connector and touching the yellow (12V) and black (ground) pins with the multimeter while the PC is running? Any precautions I should note? Link to comment Share on other sites More sharing options...
francisw19 Posted October 28, 2009 Author Share Posted October 28, 2009 Just a quick update. My brother has a friend with a PSU tester. You plug in the 24-pin power connector and some other optional connectors, and it reads back the 12V, 5V, 3.3V, etc... This PSU tester showed a 12.2V on the +12V rail. Everything else looked perfect. So, would it be safe to say my PSU is OK? Link to comment Share on other sites More sharing options...
Wired Posted October 28, 2009 Share Posted October 28, 2009 Yep. That's well within the 5% variance allowed by the ATX spec. Link to comment Share on other sites More sharing options...
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