OK I couldn't find anything on this topic, or not close at least. I have a Centris 610 with the Quadra 610 MB upgrade (16mb ram, 512K Vram, 500mb HDD, System 7.6) :approve: . When I power it on, I get the happy chimes, a happy mac, hard drive starts pulling data then it reboots 5-10 seconds after happy mac shows up xx( . After reboot, Chimes, Happy Mac, then it boots completely up. I am not sure what this is. All the caps on the board are good, the pram battery is brand new, and there is no other issues. Am I making a big deal of this, or is this a legitimate problem that someone knows something about?