ND-6500A Help

I have 2 Dell 700m. One comes with Samsung DVD/CDRW and the other one comes with NEC ND-6500A. I tried to swap both drives. The Samsung drive works fine. The NEC drive worked one time and then stopped working now. I don’t have access to the other 700m (with Samsung drive) now.

What could went wrong with NEC drive? The drive has power and able to eject. I’m not even sure if BIOS recognized NEC drive. The primary master in BIOS showing the hard disk and nothing in secondary master. Am I supposed to see the NEC drive in the secondary master?

Any suggestions would be appreciated.

Thanks.

Check for correct jumpering and correctly connected IDE ports.