Sign in with
Sign up | Sign in
Your question

GTX 480 3 way SLI power question

Tags:
  • Graphics Cards
  • SLI
  • Hard Drives
  • Graphics
  • Product
Last response: in Graphics & Displays
Share
March 29, 2012 5:33:30 PM

I have 2 480's right now in SLI and love them. The 480's are down to 250 bucks now and was thinking about picking up a third one for 3 way SLI. I'm not sure if my PSU can handle it, although the PSU specs boasts 4 way SLI certified. Here is my PSU:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

My specs currently are:

CPU: I7 950
GPU: 2x 480's (maybe 3)
RAM: 8 gigs DDR3 1366
MOBO: GIGABYTE GA-X58A-UD3R
HDD: 1 solid state boot and two normal HDD's for storage
OS: W7 64 bit
Case: Cm Storm trooper ATX full tower

Do you think I can support 3 way SLI? My case has plenty of room. I know the 480's are power hungry heat making machines so I thought I would ask. Thank you for any advice you can give :) 

More about : gtx 480 sli power question

March 29, 2012 5:41:07 PM

You would need more pci-e power cables; one 8 pin and a 6 pin. The only way you could do this is with adapters.
m
0
l
March 29, 2012 6:05:55 PM

Thats ok I have enough molex's free with adapters. So you think the PSU could handle it?
m
0
l
Related resources
a c 175 U Graphics card
March 29, 2012 6:14:08 PM

I don't really recommend that option. GTX 480 is a very high power consuming card, and guru3d did a nice review with this.

http://www.guru3d.com/article/geforce-gtx-480-3way-sli-...

It states that it consumes 1009 watt of power, which your PSU will probably not be enough, in my opinion you'll be better when you get a new GTX 680 by selling your old GTX 480's, or get a PSU this strong:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Which adds big cost, almost the same as your GTX 480.
m
0
l
March 29, 2012 7:52:40 PM

Thanks for the links, Ill have to think about it :) 
m
0
l
a b U Graphics card
March 29, 2012 7:56:52 PM

Xyos said:
Thanks for the links, Ill have to think about it :) 


As someone who has 2 X GTX 480's in SLI I have seen my setup hit 975 watts in Furmark. In stuff like Seti it is hitting 750 watts. I would say no way on an 800 watt power supply with 3 GTX 480's.
m
0
l
April 11, 2012 10:13:17 PM

Sorry to bump from the grave but will this harm any components if I try 3 cards with my current PSU? My power supply specs say 1080W under load so I was just wondering.

Thank you in advance :) 
m
0
l
a b U Graphics card
April 12, 2012 2:40:26 PM

Normally if you don't have enough power the system will just BSOD or shut down. It shouldn't harm anything if you don't let it sit there and keep doing that.
m
0
l
!