Originally posted by Gareas
The slave has to be on the IDE connector closest to the motherboard.
Not true, if you happen to be using shielded IDE cable (as I am), the master and slave swap around (unless you use cable select, then who cares)

Anyway, did you make sure both drives had a power cable (the one with a black, 2 yellow, and a red wire) as well as the normal IDE cable?


Since it's a fairly old machine, you may also have to go into the BIOS to change something, it's probably got the primary slave set to Disabled instead of Autodetect if it's previously unused, so you'll have to change that to auto-detect instead. (Although having all 4 of Primary/Secondary Master/Slave on autodetect isn't a bad idea, regardless of whether anything's actually plugged in there or not.)


You can probably also do it from the BIOS config. You know, hit F1 or some other F key when your computer boots up to get to the BIOS screen.
DEL key for me In any case, it should say what key to press unless you've gone and disabled that in the BIOS.