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1. Re: need help with power adopter
Bill Gehrke Aug 22, 2012 9:08 AM (in response to anat_usa)Your power supply might be a little marginal for the GTX 580. They require that the 12 volt supply be capable of 42 amps or 405 watts.probably the only way to check it would be to use an external voltmeter. Any chance you could return the GTX 580 and possibly go with a GTX 670? It only reqiures 30 amps. Here is what I found on the specs on the 12 volt rails
"The PSU is rated for an output power up to 550 watts and can yield up to 450 watts across its +12V rail. Thus, its effective output power (i.e. what you can get from it in a real computer that consumes mostly from the +12V power rail) is about 500 watts, which is good. The +12V rail is split into two “virtual” lines, 25 amperes each."
If the initial surge with everything turned on at once I would not feel comfortable with your system and that power supply. If I read you right you have three additional hard drives inside the unit. If you can disconnect the power to them for a quick test and turn on your computer you might isolate your problem. Typically each disk requires about 20 watts on startup

