There is only one quirk of real note to these systems; as with all of its direct relatives, you must have a hard drive of some description fitted, and working, for the fixed optical drive to be detected in BIOS. So if you see an Inspiron 8000 advertised as having a faulty optical drive when it has no hard drive present, there is every possibility that the seller was simply unaware of this trait, and that the drive may actually be good.
I was not aware of that "quirk" :/We're talking about a Dell Inspiron 8000, correct? Don't know where the Optiplex 380 came in unless an example of Dell and F12 key. Here's something noteworthy about the Inspiron 8000:
And, Victoria, it looks like an optical drive is in order -- although I don't know if I, myself, would sink any money into it!
Good -- don't give up, yet! Everyone here is hoping you get it going! Later, then.Maybe I can get into that this weekend.