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450W Corsair enough for Crossfire HD4850s

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August 6, 2010 7:13:13 PM

Does anyone know if the following power supply will be enough for my system? Details below.

CORSAIR CMPSU-450VX 450W

MSI X58 Platinum LGA 1366 Intel X58 ATX Intel Motherboard
Core i7 920 OC'd to about 3 GHz
6GB Corsair XMS3 (DDR3 1333)
DVD Burner
1 SSD
1 standard hard disk
Dual Radeon HD 4850s

From what I have read, I am thinking it may be a little low in the wattage. Any information would be much appreciated. Thanks.
a c 288 ) Power supply
August 6, 2010 7:18:09 PM

Dual 4850s will push it over the edge, a good 750W unit will be strong enough to give you enough power to overclock too.
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a b ) Power supply
August 6, 2010 8:40:43 PM

well, i actually asked that same question about a year ago but my situation was a little different. I was able to crossfire a 4870 and a 4850 using that power supply. It worked but i only ran it for about 3 weeks as i was waiting for my new 610-watt PSU so i might have been lucky. I would imagine that even if it worked you would not want to make it a prolonged setup and definitely get a decent PSU right away
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August 7, 2010 2:53:16 AM

I would recommend a 550+ Watt PSU. I think you are just pushing the 450 a little too much with that crossfire.
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a c 92 ) Power supply
August 7, 2010 2:54:33 AM

Your supposed to need 30A for a complete system and one 4850. Adding another should put you close to 40A. I don't think the 450W has that much. Might be able to run it for a bit, but I doubt you'd see long term success.
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