My psu is powerfull enough

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peterpeterakos

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Feb 20, 2014
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I HAVE XFX R9 280X B.E. I WANT TO ADD A SECOND XFX R9 280X B.E.BUT I DONT KNOW IF MY PSU CAN HANDLE THE SECOND GPU.

(MY PSU IS CORSAIR CS SERIES MODULAR CS750M 80 PLUS GOLD)
 
Solution
JackNaylorPE
http://www.guru3d.com/articles_pages/asus_radeon_r9_280x_top_review,8.html

This is Guru3D's generic power supply recommendation for the R7 and R9 series:

AMD R7 260X - On your average system the card requires you to have a 450 Watt power supply unit.
AMD R7 260X Crossfire - On your average system the cards require you to have a 650 Watt power supply unit as minimum.

AMD R9 270X - On your average system the card requires you to have a 500 Watt power supply unit.
AMD R9 270X Crossfire - On your average system the cards require you to have a 700 Watt power supply unit as minimum.

AMD R9 280X - On your average system the card requires you to have a 550 Watt power supply unit.
AMD R9 280X Crossfire - On your...
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JackNaylorPE

JackNaylorPE

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Oct 30, 2004
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http://www.guru3d.com/articles_pages/asus_radeon_r9_280x_top_review,8.html

This is Guru3D's generic power supply recommendation for the R7 and R9 series:

AMD R7 260X - On your average system the card requires you to have a 450 Watt power supply unit.
AMD R7 260X Crossfire - On your average system the cards require you to have a 650 Watt power supply unit as minimum.

AMD R9 270X - On your average system the card requires you to have a 500 Watt power supply unit.
AMD R9 270X Crossfire - On your average system the cards require you to have a 700 Watt power supply unit as minimum.

AMD R9 280X - On your average system the card requires you to have a 550 Watt power supply unit.
AMD R9 280X Crossfire - On your average system the cards require you to have a 750 Watt power supply unit as minimum.

If you are going to overclock GPU or processor, then we do recommend you purchase something with some more stamina.
Click to expand...

Size wise 750 works if not overclocking. On the other hand I wouldn't "push" any Corsair Model line with a "C" in it.

 
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Solution
Onus

Onus

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Jan 27, 2006
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It should be, yes. Be aware that your particular Corsair PSU was made with some inferior capacitors that cannot take heat. They have been cited for early failure. Make sure your PSU gets plenty of airflow, and that it is not obstructed. If top-mounted, make sure your case has a balance of intake and exhaust fans, so the PSU (always an exhaust) is not fighting the other fans in your case. If bottom-mounted, make sure your case is not resting directly on carpet or similar surface that would block the intake. Placing it on a piece of fiberboard would solve this problem.
 
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