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MSI HD7790 OC Crossfire?
 
Ratchet_Expert  posted on Dec 21, 2013 9:04:12 AM - Report post

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Can I have 2xHD7790 in my current system without adding anything extra? I don't know really know anything about setting up Crossfire except that I need the cable thingy which connects the two cards, which I have.

GIGABYTE GA-Z68X-UD3P-B3
Intel i7 2600K @ 3.40GHz
Kingston HyperX 8GB DDR3 1600MHz (2x4GB)
ATI Radeon HD7790 1GB OC Link
Cooler Master HAF 912+
CHIEFTEC CFT-750-14CS 750W

 
kingkob  posted on Dec 22, 2013 6:31:30 AM - Report post

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Maybe, your MB supports it but your psu might not be able to cope with both gpu's.

The Chieftec CFT-750-14CS 750W power supply has a maximum wattage output of 750W. This should run most PC builds with ease, but might not be enough for power hungry graphics card setups such as SLI or Crossfire combinations.

[Edited by kingkob, 12/22/2013 6:34:03 AM]

 
Davidpapa111  posted on Dec 22, 2013 7:02:08 AM - Report post

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750W is probably close enough for a XFIRE setup.

www.amd.com/uk/products/desktop/graphics/7000/7790/Pages/radeon-7790.aspx#2

As AMD's official page suggests, a minimum of 600W is recommended for crossfire setup, HOWEVER, be sure to check if your PSU has two PCI-E connectors (75W, 6 pins) included; should be okay if it checks out.

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