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Is my 620W Psu powerful enough for 2 radeon 5850 in crossfire?

Last response: in Components
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February 23, 2013 9:08:18 AM

hi, i want to know if my Seasonic 620W modular power supply can support two radeon 5850 cards as well as a stock i5 3570k. i dont plan to overclock any of my components.

psu
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

i also have a small problem. the psu only came with a 6 pin and a 6+2 pin pcie connectors. could i plug both of these connectors to card #1 and use a 8 pin to 2x 6 pin to card #2? The 8 pin which i plan to use for the second card is one of two eight pin connectors supposed to be used for the cpu. that means that i have a 8 pin left over that cannot be removed. can i use this 8 pin to power the second card?

thank you.
a b ) Power supply
February 23, 2013 9:57:53 AM

yes it will be enough and your card should have come with molex to pci connectors



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February 23, 2013 10:08:42 AM

But, can i still use the extra 8 pin cpu cable and use an a 8 pin to 2x 6 pin adapter?
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a b ) Power supply
February 23, 2013 10:49:11 AM

no the voltage configuration is different on an eps cable compared to and pcie cable and it wont even fit in an pcie slot
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