What are the proper step to enable DUAL card SLI?

[cich1012]

I have two BFG 7800 GTX's and only one of them seems to be working right.

Is there any instuctions on how to set up sli.
cause this is how I did it.
Installed one card....installed drivers.
Went to the bios and enabled dual video option.
Went into windows where the card is detected and wants me to click on the SLI
asks to reboot.

Is this right cause 8780 in 3dmark 05 doesnt seem right..

Asus a8n-sli
OCZ 1024 pc3200 2-3-2-6
x2 BFG 7800 GTX OC
AMD 64 3500+ @ 2.75

 

[Acanthus]

are both cards properly powered?

what power supply are you using?

did you flip the bridge chip?

 

[cich1012]

Im using and antec 550 the ones recommended on the nv website truepower eps12v sli one.

http://www.antec.com/us/productDetails.php?ProdID=22551

they are both powered also.. i mean they are both hot... and it says they are enabled.

what do you mean flipping the bridge?

 

[Acanthus]

Check your motherboard manual, there is a bridge chip that must be "flipped around" on the motherboard to properly enable SLI.

 

[Topweasel]

Originally posted by: cich1012
I have two BFG 7800 GTX's and only one of them seems to be working right.

Is there any instuctions on how to set up sli.
cause this is how I did it.
Installed one card....installed drivers.
Went to the bios and enabled dual video option.
Went into windows where the card is detected and wants me to click on the SLI
asks to reboot.

Is this right cause 8780 in 3dmark 05 doesnt seem right..

Asus a8n-sli
OCZ 1024 pc3200 2-3-2-6
x2 BFG 7800 GTX OC
AMD 64 3500+ @ 2.75

Cich, you still haivng problems your SLI setup? Its been like 2 weeks. You might want to Try either Asus or BFG phone support. The BFG support is based in america and from what i hear is very knowledgeable.

 

[cich1012]

is there some sort of guide i can read on the internet?