SCSI Conflict

I have recently installed a second harddrive to my machine.
The problem is now is that my Ricoh MP7040S CDRW is now not working (SCSI drive).
I've looked on my system settings and it tells me that my SCSI drive is conflicting with something. If anyone could help me as to what I should do to try and fix this problem, I would be very grateful.

Make sure all your SCSI devices in the chain have different identifiers, and it's properly terminated (some devices are self-terminating, make sure they are switched to the correct setting).