I'm sure that there is a good explanation for this, but it eludes me.
My Quadra will turn on from the key switch and from the keyboard (both normally), but I get no boot chime. I also get no video picture on the monitor. The configuration was as follows:
[slot A$]Pro Audi Spectrum 16 Sound card
[slot B$]Video Vision Studio card
[slot C$]FWB SCSI JackHammer card
[slot D$]FWB SCSI JackHammer card
[*]SCSI RW CD
[*]SCSI CD (caddy)
[*]SCSI 5 CD changer
Boot disk was a Mac OS 8.1 CD. all device IDs were valid and unique. no other drives were installed. Th machine would not respond, so I stripped it of everything but a standard tray loading SCSI CD (with the 8.1 disk - something I have been able to boot off of before). The machine behaves the same. I have removed all power (even the battery) and let it sit. The machine was sitting for a few weeks un used (off) prior to all of this. It is plugged through AC protection circuits.
I cannot find what caused the machine to turn on me. any ideas?