Psu good enough for SLI?

[goleafsguy]

Hey guys, this is my first post and I joined specifically to ask this question. Would the psu that I have already http://www.newegg.com/Product/Product.aspx?Item=N82E16817171014, would I be able to run two 9800gtxs in SLI? I was told that it did not have the right power connectors but I wanted a second opinion.

 

[Mousemonkey]

I reckon you will be ok, you may have to use molex to 6 pin adapters but thats not a major issue. Power and wattage should be OK.

 

[theAnimal]

I don't think you'll have enough power, only 18A per 12V rail.

 

[Mousemonkey]

I don't think you'll have enough power, only 18A per 12V rail.

My friend is running a pair of 8800GT's on one of those and has been for the last year or so with zero problems.
http://www.anandtech.com/printarticle.aspx?i=3413

 

[theAnimal]

My friend is running a pair of 8800GT's on one of those and has been for the last year or so with zero problems.
http://www.anandtech.com/printarticle.aspx?i=3413

According to that chart, 9800GTX is 10A at load. My math says that 2x10 > 18, and that's not taking drives into account.

 

[mindless728]

hopefully he could put one on one rail and the other on the other rail (it has 2x18A rails)

 

[AKM880]

IMO it would just be safer if he upgraded his PSU too. CM isn't a good brand for PSUs

 

[mindless728]

^+1 corsair 650TX

 

[goleafsguy]

According to that chart, 9800GTX is 10A at load. My math says that 2x10 > 18, and that's not taking drives into account.

What about the second rail? Couldnt I use that?

 

[goleafsguy]

Evga only recommends 30a total on the 12v rails and from what I see I have 36(2x18) so i'm thinking I should be alright...

 

[theAnimal]

Evga only recommends 30a total on the 12v rails and from what I see I have 36(2x18) so i'm thinking I should be alright...

The rails are generally not additive.

 

[theAnimal]

What about the second rail? Couldnt I use that?

No. The PCIe and Molex should all be on one rail if there are only 2.

 

[goleafsguy]

How exactly can I find out if they are seperate? I shut off the power and checked inside but I couldnt really figure anything out from it.