More of a question than an issue. Most sata ports are "paired" is my understanding. Meaning 2 run through the same circuit on the MB. Is my understanding correct? I have been successful setting up raid several times on motherboards using the built in raid mode. I noticed a non raid drive performing slowly on 1 board and switched it around to another set of ports- switched the cable with a DVD drive cable. Rebooted and drive was back to normal. Still wondering about this phrase I see (or something similar) in the MB installation manuals. I am just stupid because googling it receives no hits whit the specific phrase except for PDF installation manuals. I don't understand what this means..." If you set this item to RAID mode, it is suggested to install SATA ODD driver on SATA3_4 or SATA3_5 port" What is a SATA ODD driver??