i got my gigabyte hd 5770 nearly a year ago and it works great. but i have always been curious about one thing. it came with a pcie to molex power adapter. it has two pcie 6 pin connections on the pcb. the adapter is one pcie 6 pin to two male molex. i have run this thing with just one molex connected. is it actually meant for two connections? like i said the thing is rock solid as is, but i am curious why the adapter is that way. and if it does actually require both connected....why is it working with only one?