Just thought i would like to share my experience. I have successfully installed all my 8 HDD drives using the 6 on board SATA ports and 2 ports from marvell controller that is on the Wifi Slot on the motherboard. DSM is reporting all 8 drives detected. and seems to be building fine. Note that in the BIOS, the drives have to be detected as ACHI not IDE, if it's in IDE it will not been seen in DSM. DSM also sees the two drives connected to the motherboard via the marvell PCI Express slot. Just sharing!