|What type of interface is the second DVD drive? IDE/ATA or SATA. If IDE then you may need to rework the jumpers on the back of the second drive. If the original optical drive is jumpered using CS (cable select) then you need to jumper the other one CS too. In that case you also need to use an 80 wire/ 40 pin cable. If the cable in use came with either drive and the drives are less than a few years old you should have the correct type of cable.|
You may have the SATA drives set to operate in an IDE compatibility mode. At any rate you don't need to be concerned with what the SATA drives show if they operate.