PSU power requirement question

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mc962

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Jul 18, 2013
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I probably should have asked this before I decided to go out and purchase my power supply, but can this psu (AX760) potentially do a gtx 760 SLI along with overclocking?

i dont want to do any major overclocking, just a little bit that i might experiment with down the road. Below is the build I have, just add 2 sli MSI gtx 760 cards to it. And I might add some case fans later. Regardless I dont plan to sli or overclock right at the start, its just something i wanted to plan for

http://pcpartpicker.com/p/1ofvg

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($199.99 @ Microcenter)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Microcenter)
Thermal Compound: TUNIQ TX-2 3.5g Thermal Paste (Purchased For $8.99)
Motherboard: Asus SABERTOOTH Z87 ATX LGA1150 Motherboard (Purchased For $214.99)
Memory: Corsair Vengeance LP 8GB (2 x 4GB) DDR3-1866 Memory (Purchased For $69.99)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($62.99 @ Amazon)
Case: Fractal Design Define R4 (Black Pearl) ATX Mid Tower Case ($89.99 @ Microcenter)
Power Supply: Corsair 760W 80 PLUS Platinum Certified ATX12V / EPS12V Power Supply ($159.99 @ Amazon)
Optical Drive: Sony 5280S-CB-PLUS DVD/CD Writer ($28.99 @ Amazon)
Operating System: Microsoft Windows 8 (OEM) (64-bit) ($89.74 @ Amazon)
Other: Belkin Anti-Static Wrist Band with Adjustable Grounding ($5.58)
Total: $961.23
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-08-05 21:22 EDT-0400)
 
Solution
ko888
For a system using two GeForce GTX 760 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 50 Amps or greater and that has at least four 6-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...
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ko888

ko888

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Feb 18, 2009
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For a system using two GeForce GTX 760 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 50 Amps or greater and that has at least four 6-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 Corsair AX760 (SKU# 75-001304 / CP-9020045) power supply unit, with its maximum combined +12 Volt continuous current rating of 63 Amps and with six (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with two GeForce GTX 760 graphics cards in 2-way SLI mode. There should be sufficient spare +12V rail capacity to handle overclocking of the CPU to 4.5 GHz.and graphics cards to a GPU core clock of 1250 MHz if yo're able to reach those speeds.
 
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