GTX 980 Ti G1 WINDFORCE 3X 6GB in SLI - 1000 W Power supply enough?

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Bumbax

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Jun 5, 2015
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Hello!

I will be getting two of these http://www.gigabyte.com/products/product-page.aspx?pid=5208#ov

+

MSI X99A SLI PLUS
5820k
Intel 750 NVMe SSD 400GB
32 GB RAM ADATA 2800 MHz
Seagate Enterprise NAS HDD 3000GB
Cooler Master Nepton 240M

And I am wondering, if this 1000 W power supply is enough? http://www.corsair.com/en-us/hxi-series-hx1000i-high-performance-atx-power-supply-1000-watt-80-plus-platinum-certified-psu

Or does the 600 W requirement for the cards add up? That would take me to like --- 1 200 W + everything else, so like 1 500 W. I hope that is not the case?
 
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Bumbax

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Jun 5, 2015
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Thank you.

What about the "600 W" description? That is not related to how much power the card itself takes?
 
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Sapphire Thunder

Sapphire Thunder

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May 28, 2015
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1 GTX 980Ti takes about 450W at peak consumption.
So 2-way SLI 980TI can take 900W.
CPU will take around 150W if overclocked/peak consumption.

So the smallest psu you would want for 2-way SLI, is 1100W.
And that would leave only 50W to spare.
So 1200W is pretty much what you will need.
 
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sammy sung

sammy sung

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May 5, 2014
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That list is more of a safety net guideline for people that can't do the math in their head. That said, if you take into account a healthy overclock to say 4GHz on the 5820K and mild overclocks on the cards, he's definitely comfortably in the 1100W range. But you could probably skate by with a quality 1000-1050W unit. But why would you want to take the risk
 
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ko888

ko888

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Feb 18, 2009
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System Power Supply Requirements for two GIGABYTE GV-N980G1 GAMING-4GD graphics cards in 2-way SLI mode
• a minimum of a 950 Watt or greater system power supply is recommended. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)
• the system power supply must also have a maximum combined +12 Volt continuous current rating of 73 Amps or greater
• the system power supply should also have at least four 150-Watt 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) 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.

Corsair HX1000i (SKU# RPS0004 / CP-9020074 / 75-010583)
• OEM: CWT (Channel Well Technology)
• maximum combined +12 Volt continuous current rating: 83.3 Amps <===== More than sufficient
• eight 150-Watt (6+2)-pin PCI Express supplementary power connectors <===== More than sufficient
• Ambient Temperature Maximum (i.e. without de-rating/losing capacity): 50°C
• Full Modular Output Cables: Yes
• Official Intel Haswell Compliance: Yes
• 80 PLUS PLATINUM Efficiency Certification
• 7 Year Limited Warranty
 
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hatib

hatib

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Jun 21, 2015
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i am very sorry i meant that if he wants more gpus not gtx 980 ti like titan x sli or anything more advanced

 
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