I have this Intel D975XBX2 mobo. It has 4 black sata ports for Intel Matrix if used, 3 blue sata ports for Marvell if used and 1 red for an external SATA device. Ihave 3 SATA HDD and just got two SATA DVD writers. If I understand this SATA business correctly I can only put one device on each port? Intel says I cannot connect dvd burners to the blue ports, says to connect them to the black ones, only one problem I have my 3 SATA HDD connected to three black portssata 0-2, which leaves 1 black port and two DVD burners. I do not have a RAID configuration. What can I do? I wonder if connecting one to the last Black port/SATA 3, and the other one to the red port which the instructions say is for an external device. I welcome and thank you for any suggestions.