Power Supply choices

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mcdonh

mcdonh

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Oct 8, 2013
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Ok, I am building A high end desktop pc, I am however on a budget so there is some indecision between parts
My current Parts are:
-i7 3770K or A i5 3570K
-Nvidia GTX 780
-Gigabyte GA-ZZ7X UD5H or UD3H
-NZXT Phantom 820
-Seagate Barracuda 1tb 7200rmp
-Kingston HyperX KHX2133C11D3K4/16GX 16GB (4x4GB) DDR3
-Corsair Force Series GS 128GB SSD
-Noctua NH-D14 CPU Cooler

I would love any advise you have on my build what so ever, however I am specifically looking for the best power supply I can get on budget for my build, Thanks in advance for the extremely helpful comments I expect are to follow
 
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ko888
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rcfant89

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Oct 6, 2011
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That looks like a pretty good system. I built one about 2 years ago with these specs and it's a beast:

i7 2600k/Gigabyte Z68X-UD3H-B3/Gigabyte GTX 570/Crucial M4 64g/Seagate 1TB
HDD/Kingston HyperX 16gb/Blu Ray CD/DVD/Corsair TX750/Windows 7 Professional 64
bit

I haven't had any problems with my Corsair TX-750. I did a lot of research and I have faith in Corsairs stuff. Maybe get an 800 or 850? I don't know how much more power your system would use since your CPU and GPU are newer than mine. Heck, the 750 might be plenty too. I wanted to have enough to comfortably SLI if I ever wanted to but I haven't really needed to.
 
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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 780 graphics card NVIDIA specifies a minimum of a 600 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 42 Amps or greater and that has at least one 6-pin and one 8-pin PCI Express supplementary power connectors.

For a system using two GeForce GTX 780 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 850 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 65 Amps or greater and that has at least two 6-pin and two 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.

What is your power supply budget amount? Are semi-modular or fully modular output cables a requirement?
 
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mcdonh

mcdonh

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Oct 8, 2013
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I am only using 1 gtx 780, semi modular psu would be ideal or maybe fully modular but due to the size of the phantom 820 a non modular would be fine if necessary, and as for budget it is quite high I just kind of meant I want to get the best value I can pay a fair amount
 
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mcdonh

mcdonh

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Oct 8, 2013
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thanks for the input, sounds quite good, definitely considering, thanks
 
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ko888

ko888

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Feb 18, 2009
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Seasonic G Series 650W (SSR-650RM) semi-modular
• maximum combined +12 Volt continuous current rating of 54 Amps
• four (6+2)-pin PCI Express supplementary power connectors
• 80 PLUS GOLD Efficiency Certification
• 5 Year Limited Warranty
• Link: http://www.newegg.com/Product/Product.aspx?Item=N82E16817151118
 
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