If the IIvx has a CD drive, you need to make sure the drive is numbered/ identified differently than the CD. Typically, the CD is set to ID = 3 and the boot drive to ID = 0 (though 1 or 2 will work fine).

Many SCSI hard drives, and most likely a Connor 160MB drive, have pins for a termination jumper that must be installed underneath the drive, on small pins along with the ID. What you have underneath may look something like this:

** 0

** 1

** 2

** TE

but that is just a guess, as I don't have such a drive in front of me.

You would, in this case, minimally need a jumper installed across the ** TE pins ("Termination Enable," or some such thing). Thus:

** 0

** 1

** 2

_

** TE

_

Sorry, but that's the best I can do with the keyboard!

Chances are that the rest of the pins can be left alone, but you can most likely find the drive's specs online and see what you are supposed to do if all else fails.

Now, some drives also have automatic termination, in which case you don't have to do anything -- except check to see if termination is also set on the CD drive (which it shouldn't be). And it is also possible that your hard drive is dead, since spinning up and down can happen when that happens (google "stiction").

Try these hints and report back.