It's working now....but just with some help
I tried inserting a 2nd card(old 8800gt), which worked right out of the box, even in the 1st slot, and after that the 2nd(the gt 1030) also worked
8800gt 1st pcie slot(01:00) , 1030gt 2nd pcie slot(02:00 with 02:00.0 and 02:00.1)
my current mainboard...