I will read what you linked to.. The card is a Marvell 88SE9215 4xSATA 3 which shouldn't be a multiplexed card.
How does it imply that one port is multiplexed and not 2ports? (I am aware multiplexed ports are not supported).
You say 4 out of 8 ports should be working (i have 4 disks attached to the motherboard) ? You have lost me here.
The 4 onboard are working. Are you implying here that if the card attached is multiplexed non of the "new" ports would work as i already have 4 working ports? If this is the case, it makes no sense to me. I would expect 2 of the new ports to work.
I'm sorry i didn't attach the make and model of the card in the first post. Do you need more info about my system?
I did a lsusb -v
and got this
0001:01:00.0 Class 0000: Device 1b4b:9215 (rev ff) (prog-if ff)
!!! Unknown header type 7f
I can see this comes up as a Marvell, so i guess this could be my card. Does this mean no drives are loaded? But then again half my HDD's are shifted 4 ports, so it has detected something somewhere?