If the remaining optical drive is set up on master for the IDE connection, leave it alone. It will have to be physically connected to the end connector on the IDE cable, and the jumper set to master, but if it was the master drive before, there is no need to change anything.
If your machine is a Dell, they were probably set up as cable select, and again, there is no need to bother the remaining drive.
To use the SATA drive, all you need is a SATA connector on the motherboard, a SATA cable and a SATA power cord from the power supply to plug into the back of the Samsung. The operating system should recognize the new hardware once you start up the machine again after installing the drive.
Now, having said that, there are some older motherboards that don’t play well with SATA optical drives. What make and model computer do you have?