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PSU calculators gave me 400 watt variotions! HELP!

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  • Power Supplies
  • Components
Last response: in Components
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September 7, 2014 7:01:00 PM

I have used various PSU calculators to ensure I am using the correct PSU wattage/. I am getting estimates ranging from 520watts all the way to 900 watts. This is absurd. So far I have a Corsair 750 watt single 12v rail PSU (80 bronze) --Is this good enough?
Components:
Intel Core i7 -4790K (I will overclock to about 4.8)
ASUS Sabertooth Mk I motherboard
Nvidia Geforce GTX 760
SLI with another gtx 760
LG BH16NS40 Blu-Ray/DVD/CD Writer
Samsung 256 gb SSD
Seagate Barracuda 1TB 7200rpm HHD
ADATA V2 2x8GB (16gb) DDR3 RAM
Deepcool Gammax 400 Cooler/Heatsink
2 120mm case fans w/LEDS


Thanks so much for your time!

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a c 2454 ) Power supply
September 7, 2014 7:09:39 PM

Corsair 750 watt single 12v rail PSU (80 bronze) --Is this good enough? < It's not the greatest supply , but yes it's enough.

I recommend:

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ Newegg)
Total: $59.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-09-07 22:10 EDT-0400
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a b ) Power supply
September 7, 2014 7:13:44 PM

520w for sli? i don't think so, even if it is, it will be too close for comfort. it's good to give some breathing room.
a 750w should be enough, 900w would be too much (though you can get that also), you have a 760 sli, so i doubt it will need 900w
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September 7, 2014 7:22:27 PM

SR-71 Blackbird said:
Corsair 750 watt single 12v rail PSU (80 bronze) --Is this good enough? < It's not the greatest supply , but yes it's enough.

I recommend:

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ Newegg)
Total: $59.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-09-07 22:10 EDT-0400


What is wrong with that particular PSU? I am ignorant to PSU's so I dont know what differentiates my corsair from the EVGA you listed.
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a c 2454 ) Power supply
September 7, 2014 7:27:37 PM

Much higher quality , just a suggestion , The Corsair CX Series uses cheap capacitors , but will run your specs.

The EVGA is much better quality made by the best Super Flower.
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September 7, 2014 7:36:15 PM

Okay thanks so much. I will upgrade to a an EVGA when I upgrade my GPUs next year. I will probably get twin 780TI's or some twin 900 series gpus. Either way I will take your advice on an EVGA then as well as upgrade the wattage (maybe 1ooo watts???)
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