It might show the symptoms that you describe (IE no Video)
I remember SCSI/Termination issues with my A3000T many years ago. Thing is, the A3000T can take FOREVER to go to the default "Kickstart Floppy" video screen when the SCSI isn't correct. You may not be waiting long enough to see it. Pull the SCSI cable from the motherboard and give it a good 5 or 10 minutes before you decide there isn't any video.
Another time I was using the A3000 Batmem utility for something once and changed a SCSI bit. It took SO LONG to boot up after that I thought I killed the machine but it eventually came back up.
I think the power light should go Bright-Dim-Bright when the machine first powers up, is yours doing that? Also check and see if you can access the early startup screen by holding down both mouse buttons at power up.
Keep us posted and don't give up on it.
Jeff
