Corsair CX430M power supply with MSI GEFORCE GTX 6?

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Nov 21, 2014
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I just bought a Corsair CX430M power supply only to realize that the graphics card I got for the same build, the MSI GEFORCE GTX 660, requires a minimum of 450W (according to the manufacturer). Can I get away with the 20W difference? Or should I just return my power supply and get a new one?

According to PC Part Picker, my whole build should only come to 337W.
 
Solution
toyftw


Hi - Yes, you are fine. GPU mfg's routinely overstate wattage requirements, in part because there's so
much junk out there that doesn't deliver their adv specs, and older PSU platform's the don't put enough
of the total power on the +12v rail(s) where it's needed.

Your CPU and GPU (hdd, etc) draw their current from the +12v rail(s). A system with a gtx 660 needs at
least...
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toyftw

toyftw

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Jul 29, 2012
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Hi - Yes, you are fine. GPU mfg's routinely overstate wattage requirements, in part because there's so
much junk out there that doesn't deliver their adv specs, and older PSU platform's the don't put enough
of the total power on the +12v rail(s) where it's needed.

Your CPU and GPU (hdd, etc) draw their current from the +12v rail(s). A system with a gtx 660 needs at
least 24 +12v amps available, your PSU has 32 +12v amps, you are good to go and even have some headroom.
 
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Nov 21, 2014
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Thank you! :)
 
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