Hi, I have an ASUS Crosshair IV Formula motherboard (bought 2 1/2 years ago) with 6 SATA 6 Gb/s ports. These ports are split in the BIOS into 1-4 and 5-6, I was just wondering whether this actually means anything? I have an SSD on Port 5 and am having some trouble with read/write speeds - so I...