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Corsair CX750 or EVGA SuperNOVA 750 B1 for Radeon 7950 CF? (plus 12v rail questions)

Tags:
  • EVGA
  • Power Supplies
  • Components
  • 750w
  • Corsair
  • amps
  • Graphics Cards
Last response: in Components
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June 14, 2014 7:50:22 PM

I am buying two Sapphire Vapor X 7950 GPUs but need a new GPU. My current Thermaltake TR2 600w will not cut it haha. I was looking at either the Corsair CX750 or EVGA Supernova 750. The Corsair seems promising with a 62A 12v rail and has 4 6+2 pin VGA connectors(I need two 8 pin and two 6 pin). The EVGA on the other hand has 4 12v rails rated at 20A, Would this be enough as I saw online the GPUs need 25 each? I also read that the EVGA comes with 3 6+2 VGA connectors but from pictures it looks like it has 5.

Also whats the difference between 4 12v rails each at 20A compared to 1 12v rail at 62A? Do they perform the same? Do they offer more or less connectors? How come PSU draw low amps from the wall but have such high amperage ratings? Why don't they trip the 20-40A rated circuit breakers?

More about : corsair cx750 evga supernova 750 radeon 7950 12v rail questions

a b ) Power supply
a b U Graphics card
June 14, 2014 8:00:29 PM

Neither, go with at least corsair tx, preferably ax, seasonic, enermax, super-flower, or if you just like EVGA get a Supernova G2 (that's the single rail.)
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Best solution

a c 2488 ) Power supply
a c 928 U Graphics card
June 14, 2014 8:00:31 PM

Read the review then purchase.

Best 750w on the market.

http://www.jonnyguru.com/modules.php?name=NDReviews&op=...
Review here ^


PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($89.99 @ Newegg)
Total: $89.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-06-14 22:51 EDT-0400

http://www.jonnyguru.com/forums/showthread.php?t=3990
Rails ^
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