Power supply for i7 and SLI.

trep-

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Feb 4, 2006
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Hi,

I'm currently looking to build a new computer, here's the plan:

I7 930
Asus P6T
6GB DDR3 1333
2x HDD 320GB
1x HDD 1TB
1x DVD-RW
GTX 470
Lian Li PC-B10 case

I usually keep my PC 3+ years. With this, long term, i would probably add a second GTX 470, SSD drive and replace DVDRW with some Blu-Ray drive when it gets cheaper (and games started shipping with Blu-Ray disks hehe).

What wattage (long term) do you think would be required to run this ? Also, which brands/models would you consider (modular please). I know Corsair does quality PSU, besides that, i'm a complete ignorant (kind of hehe).

Thanks !

trep-
 
The GTX470 eats almost as much power as a GTX480. A 750 watt Corsair will be enough - barely. I'd go to an 850 watt PSU. But then, I tend to overspec PSU's.

If you are seriously planning SLI, you do not really need a modular PSU. You will not have many cables left over.
 

one-shot

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Jan 13, 2006
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I'm not sure why anyone would get a GTX 470 for SLI when benchmarks prove 5870 in Xfire do much better than SLI 470s. The 470s also consume way more power. So less performance, more power consumption. I don't see the point. I have 2 nVidia GPUs in SLI. I am not a fanboy, just a realist.
 

shovenose

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i agree with you like 99.5%, but thats not what this thread is about.
 

one-shot

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You are right. I got off topic a little. I have a Corsair TX750W PSU and I would hesitate putting SLI 470s on it. I'm sure it's possible, but it wouldn't leave much room for expansion in the future.