PSU requirements for new PC

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AdarshN

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Nov 30, 2013
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Hey guys! I'm building a new PC with the following:
i5 3570k (which I'll overclock to atleast 4GHz)
EVGA GTX 760 Superclocked
Probably a CM Hyper TX3 cooler
2X4GB of Corsair Vengeance
A 23 inch LED moitor

I'm undecided between Corsair CX500 and Seasonic S12II 520. Will either of them be enough for an overclocking system or should I go for the GS600?



 
Solution
ko888
For a system using a single GeForce GTX 760 graphics card NVIDIA specifies a minimum of a 500 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 30 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors. Some of the GeForce GTX 760 cards have a single 8-pin or two 8-pin or one 6-pin and one 8-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical...
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animal

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Jan 23, 2010
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between the two PSU's you have listed, go for the Seasonic. However, since you are planning to overclock, you might want to step up your PSU to the 600-650 watt range. Look for one from Seasonic, XFX, Corsair (except the CX series) or Antec.
 
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toyftw

toyftw

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Jul 29, 2012
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Either of those two will run your system without issue. You can OC as well. I would go with the Seasonic as it
has between 2&4 (depending on which CX500 it is) more +12v amps than the CX. The +12v is where your CPU & GPU draw their current from. So the xtra amps is beneficial. The Seasonic S12II is also a good quality unit.

 
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Rambizz

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Aug 11, 2013
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You should buy the GS600, it's cheap and functional. But your CPU Cooler is'nt strong enough, to kill the heat. You should buy a stroner and at not least more powerful cooler for your build.
 
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AdarshN

Honorable
Nov 30, 2013
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Hmm..I went through some power calculators online and according to those results, I need no more than 500W..are they accurate ? Or do I really need a 600W PSU?
 
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ko888

ko888

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Feb 18, 2009
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For a system using a single GeForce GTX 760 graphics card NVIDIA specifies a minimum of a 500 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 30 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors. Some of the GeForce GTX 760 cards have a single 8-pin or two 8-pin or one 6-pin and one 8-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The Seasonic S12II-520 Bronze (SS-520GB Active PFC F3) power supply unit, with its maximum combined +12 Volt continuous current rating of 40 Amps and with one 6-pin and one (6+2)-pin PCI Express supplementary power connectors, is sufficient to power your system configuration with a single GeForce GTX 760 graphics card.

The Seasonic S12II Bronze Series use higher quality electrolytic capacitors in its construction than the Corsair CX Series.

There should be no problem handling an overclock of the CPU up to 4.6 GHz if your CPU is able to stably reach that clock speed.
 
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