I'm a little bit confused by your description, but here's my suggestion.
Try to boot it with just the hard drive attached and 3 1/2" drive attached. Once you get that working, try to add the CD.
Leave your secondary IDE port empty. Strip back to the minimum, then build it back.
Describe cleary what is happing. Is your operating system booting and the new drive missing? Does the bios fail to identify the new drives? What operating system are you using? (Win2000 bluescreens when you change drives)
Good Luck. Let us know what happens.
Try to boot it with just the hard drive attached and 3 1/2" drive attached. Once you get that working, try to add the CD.
Leave your secondary IDE port empty. Strip back to the minimum, then build it back.
Describe cleary what is happing. Is your operating system booting and the new drive missing? Does the bios fail to identify the new drives? What operating system are you using? (Win2000 bluescreens when you change drives)
Good Luck. Let us know what happens.