how much power do I need 2 different systems.

[excalibrax]

Here is my new build:

http://pcpartpicker.com/p/XnS6

 

 

I am debating going with 3x gtx680s or the AMD equivalent. If I want the option open for 4 way sli with more hard drives in the coming years I believe the 1000w should do me, or is that overkill and I would want to go for 850w?

 

 

I also have an old system which I am having diagnosed for a power issue cord issue. I might just resleave/recable the 24 pin if thats possible, or Buy a new supply for it. Here is the build.

Gigabyte GA-N680SLI-DQ6

Duo E6750 Conroe 2.66GHz

Segate Perp 320gb ST3320620AS

OCZ plat 512x2 OCZ2P8001GK

OCZ plat 1gigx2 OCZ2P800R22GK

Zalman 7900 CNPS9700 LED

GeForce GTX 650 Ti 1GB

I am looking to have this as a NAS/Bittorent box if I can. May add another Sata card to it for more drives, I know hard drives don't draw much power, but looking at 10 hard drives and a dvd burner with this. What size power supply should I get for this. The graphics card will probably stay or even be downgraded so thats not an issue. 

 

 

 

 

[Wats]

For the Titan build, 750 is more than enough.

 

500w for the old system.

[Sundanc3]

You could even get away with a CX430 for the old system 

[WoodenMarker]

Any solid 850w should do but if you're gonna go with 3 680's, you might as well get a 1000w if you can get one at a good price.

 

Something like the cx430 should be plenty

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139026&Tpk=cx430&IsVirtualParent=1

[excalibrax]

Dear god, $50 with a $20 rebate card >< nice! thanks for the recommendation.