PSU for three video cards

[andicole0]

Just setting up a GTX480 SLI setup and want to use an old 8800 for Physx. However my 800W PSU doesn't enough PCI-e connectors. Is it OK to use Molex adapters or do I need a new PSU and if so which one?

Cheers.

Andi.

 

[Mason-]

I'm not an expert but I'd say you're pushing the limit with 800W for 480 SLI + 8800.

I would feel safer with 1000W but thats me.

EDIT:

why the 8800 for physX

I'm sure the 480's would cope fine.
Taking the 8800 out I think you'd be (just about) okay.

 

[Kanpai]

I wouldn't risk it to be honest. Go for 1000W+ to be on the safe side

 

[andicole0]

I'm not an expert but I'd say you're pushing the limit with 800W for 480 SLI + 8800.

I would feel safer with 1000W but thats me.

EDIT:

why the 8800 for physX

I'm sure the 480's would cope fine.
Taking the 8800 out I think you'd be (just about) okay.

Simply because it's there

 

[angela]

Agree, that you don't need 8800, 2 gtx480's will be more thn enough for all games which got physix

 

[Ezyryder]

Indeed, you are going to have to spend a lot more money just to get those 3 cards in there. 850W + PSUs are expensive. Also 2 480 in SLI should cope with everything with ease, unless you have a 3, 30" monitor set up!

 

[HazardO]

+1 for 1KW+

You might find that the 8800gt actually slows games down with PhysX though.