I had the setup up and running with same hub and all 3 sticks before the card got fried, so I'm confident that there is enough power, etc. I have tried with just one stick and it still doesn't recognize.

Here is my cmd line arg:

./cgminer -o stratum+tcp://solo.ckpool.org:3333 -u *btcaddress* -p x --suggest-diff 442 --gekko-compacf-freq 400 --gekko-mine2 --gekko-tune2 60