I recntly started to reanimate an old Quadra 950. The problem: The machine boots just fine under OS 7.5 (startup chime, welcome screen, desktop), but mouse pointer freezes and also keyboard commands do not work (known good keyboard, mouse and system harddisk). So i�m guessing the ADB port is toasted. Is there a chance to connect the ADB keyboard via some kind of serial-ADB adaptor or via NUBUS cards bearing additional ADB ports?
What also makes me wonder is that this monstrosity steadfast refuses to boot from known-good system floppy or CD, even when ALL harddisks are disconnected.
Any tips to solve the situation?