Toshiba Magnia 3310 - Manual (Page 157)

Installing and Removing Hardware
Expansion cards
139
For the RAID controller MR518 to which an internal hard disk
drive is connected, install it only in the third slot (PCI-3) from
the top.
Installing the RAID controller MR518
NOTE: Be careful not to interpose other cables. Install the
RAID controller horizontally so that it is not caught on the
hooks above and below the slot.
10 Connect the SCSI cable that was removed in step 7 to the SCSI
connector on the RAID controller.
Connecting the SCSI cable