So I inherited a Color Classic from a friend that knows I like fixing Macs.  The case is in surprisingly good condition (minimal yellowing, very few scratches, even still has the Quicktime sticker!).  It also has 2x4MB RAM sticks, so it's maxed out as far as that goes too.

I have done the following so far:

• New 3.6v PRAM battery
• Replaced capacitors on motherboard
• Replaced hard drive with one leftover from another computer (18gb IBM with adapter to 50 pin SCSI)

It will always boot if I plug in an external SCSI ZIP drive with the termination set to on.  But it won't boot without an external SCSI device.  I've tried both with and without the "TERM POWER" jumper on the hard drive with no apparent difference.

Any ideas?