2x GTX 660 cards with no output

Infiniteloupe

Commendable
Jul 8, 2016
2
0
1,510
Hey Everyone,

A friend sent me two Galaxy GTX 660s 2GB. He had them running in SLI on his rig, he came back from working away for a month and they weren't working. Not knowing much about PCs he just replaced them.

So I've got both cards. I have a working rig running a GTX 550 Ti. I've tried plugging both cards in singally and the PC boots but the card fans don't spin and there is no output.

I tried running them in SLI, same result. Plug the 550 back in it all works fine.

Anyone got any ideas? It seems very unlikely to me that two separate cards would die at the exact same time.

I have zero experience with card that are/have been run in SLI.

Is there something I'm missing or are they dead?