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Is a 500w PSU enough for this build?

Last response: in Components
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June 4, 2013 4:55:47 PM

Intel Core i5-3570K Quad-Core Processor 3.4 GHz
EVGA GeForce GTX 660 2GB
ASUS P8Z77-V LX LGA 1155 
Seagate Barracuda 1 TB HDD
Samsung Optical Drive SH-224DB/BEBE
NZXT Technologies Source 210
Corsair Vengeance 2x4GB
Cooler Master Hyper 212 EVO

I will be using a Corsair CX500.

More about : 500w psu build

a b ) Power supply
June 4, 2013 5:00:28 PM

Yes as long as it is a good brand. Antec, Corsair, Seasonic, XFX.
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June 4, 2013 5:00:48 PM

I would go for a little higher. 600 Watts min. to keep in the clear. Troubleshooting power issues can sometimes be very confusing to the inexperienced.
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a b ) Power supply
June 4, 2013 5:05:14 PM

The 660 recommends a 450W supply for the whole system. 500W is enough.
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a c 115 ) Power supply
June 4, 2013 5:11:31 PM

That's plenty. Don't need 600W.
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June 4, 2013 5:12:29 PM

Sure but have you accounted for the rest of the system?

77 Watts or the CPU. (At max load)

RAM, Optical Drives, HDD and any future disk drives or USB power will suck that power right up. Or overclocking as he is purchasing the UNLOCKED CPU.

I stick with my suggestion of 600 watts or more.
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a c 115 ) Power supply
June 4, 2013 5:16:00 PM

No, that recommendation is for the whole system. If you want to do it that way, use the TDP of 140W. USB sticks are limited to 2.5W (most won't ask for the extra current, and get 0.5W), and on the 5V rail. RAM is a couple of watts per stick.
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a b ) Power supply
June 4, 2013 5:16:46 PM

Yes that takes into account the system load. 500W is plenty
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June 4, 2013 5:30:58 PM

jnkweaver said:
Yes that takes into account the system load. 500W is plenty


It says 450w is the minimum requirement, not recommended. Is there any difference between the two?
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a c 115 ) Power supply
June 4, 2013 5:53:36 PM

That's a close to worst-case scenario, base on running a power-guzzling CPU (e.g. FX 125W+) etc. on a low-quality PSU that can't handle what it's rated for. My "minimum" in this case, would be around 300W, assuming no OCing and a good PSU (though I wouldn't recommend it unless you are trying to use an SFX- size PSU or some other space-limited factor).
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Best solution

a c 1167 ) Power supply
June 4, 2013 6:27:21 PM

For a system using a single GeForce GTX 660 (non-Ti) graphics card NVIDIA specifies a minimum of a 450 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 24 Amps or greater and that has at least one 6-pin PCI Express supplementary power connector.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the 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 Corsair Builder Series CX500 (SKU# CP-9020047), with its maximum combined +12 Volt continuous current rating of 38 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with a single GeForce GTX 660 (non-Ti) graphics card.
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June 4, 2013 7:19:43 PM

Great information, ko888. Good to know..
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