lalittle Posted September 19, 2010 Share Posted September 19, 2010 I just bought a couple HX850s for two systems I'm about to build. Before I build a system, I like to check the power supply with a power supply tester (a Coolmax ps-224 tester in this case) just to make sure that the PS is working normally before I connect everything. I tested the HX850s and found that one of them rates 11.7 and 11.8 volts for the 12V rails, while the other rates 11.8 and 11.9. The 11.8/11.9 reading doesn't bother me, but 11.7V is the lowest I've seen. In searching the web, I found several posts talking about how 11.7V on the 12V rail "could" be enough to cause problems even though it's technically still within ATX spec. Is this true, or is an 11.7 volt reading still completely okay? I'm worried that with any sort of graphics card overclocking I could run into problems if the 12V rail is too low. Note that other power supplies I've tested with this PS tester have read 12 or even 12.1 volts, so I don't think this is an issue with the tester being significantly off. This tester, by the way, is supposedly within +/- 0.1V. Thanks for any feedback on this, Larry Link to comment Share on other sites More sharing options...
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