Possible, of course, but in the case of an Indy, the processor and PSU are working, and it gets only as far as the "I think, therefore I am a processor; I wonder if I have any memory" test in the PROM, and then executes a loop which controls the LED in the PSU if there's no RAM. At least, that's what I believe; I've not seen a detailed description of the PROM startup. I suppose your problem may be something similar, in that the CPU is running but can't do anyting useful because either it's crippled or some other part of the system is disfuntional. Does the CPU control the power supply LED(s), like it does in an Indy?