If you have to install an IDE drive and, there is no IDE port on the motherboard, you can use an IDE(PATA) to SATA adapter card. See attached. The required cable is a 80 wire, 40 pin PATA IDE ribbon cable.
Edit: For future finders, the adapter needs to be a bi-directional Parallel ATA(IDE) to SATA type. That's SATA into the motherboard and PATA(IDE) out to the HDD. The HDD should be visible in the BIOS as a SATA HDD. Deployment of a Secondary IDE device, which is normally the legacy CD-ROM drive attached to the same ribbon cable, might not be available via your adapter. Generally, one adapter per IDE device.