hi guys i brought GA-B75M-D3H Motherboard and HD 7750 1GB DDR5 graphics card , now i have a problem in connecting HDD's , i have two hard disk each of 250 GB , 7200 rpm , seagate barcuda HDD , when i connect two HDD in port 2 & 3 , the mother detects any one drive . (Sata Port 0 & 1 is Open) , i installed new OS Win 7 64 bit, but when i restart it will show no boot device found and bios says no sata drive in that connected port ... pls help me guys