It's both Hypo... look on the drives themselves and you should see a jumper map. Make sure to set the pins jumper correctly for Master & Slave respectively.
Then when you are booting, go into the bios and set your Primary Master & Slave settings to "Auto Detect" if you can.... if you can't use an "Auto" feature, you'll have to input the drive settings manually. Then you should be able to boot up and see both drives in your tree.
Lemme know if you run into any snags...
