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Hello. I recently decided to go SLI. I already have a new mobo and my second card is on the way. The only other problem that I know of is the PSU. Does anyone know how I can find out what PSU I'm gonna need for my new rig? I think XFX recommended 650 or something as a minimum for one of my cards. Any responses are greatly appreciated. Thank you.
 

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What is the brand and model of the current one? If it's good quality it's fine, if it's some cheap junk then you should replace it with something like a Corsair TX series PSU at least.
 

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A Corsair TX 750 or HX750 or above would be plenty. A TX650 probably also would, but then you would need molex-pci-e adapters for the second card, so I would pay the extra $10-15 for the 750w model. The TX PSUs are non-modular, the HX PSUs are modular and are also higher-quality. I don't know if you care about modular cables (I don't), but if you do, you can't go wrong with the HX750.
 

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i use corsair myself,but i did notice on the egg last night they had a coolmaster 850 modular for $139.i paid that for my 850tx.
 

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Yup, it can even handle 3 easily if you use adapters.
 

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You shouldn't have to unless you find out the hard way it's a crappy unit.
 

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Again: What's the brand and model of the 730W?
 

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Oh yeah, replace that if you can. It might work with two 9800GTX+s, but I don't trust Raidmax PSUs at all.
 
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