Yet another dead(?) Power Mac 9600/300

[HunOmegared]

I recently got a 9600/300 (tested stock 300mhz cpu, Kansas logicboard, tested ram sticks /4*128MB/, ixmicro 128m8, GOOD pram batteryS, good psu, 4gig hdd, cd, zip, floppy).

Chimes, but thats it.

No video, no keyboard (no response to cmd-opt-p-r, can power on with keyboard).
I tried evertything, cuda reset, logic board reset, another CPU (Sonnet 400), ram, different videocard (fw modded radeon 7000, mac rage128pro), disconnect scsi etc.

Chime comes almost immediately after i press the power button.

Without the ram sicks no broken mac sound, just chime.

Tried to get to OpenFirmware, with cmd-opt-o-f, holding down looooong the power button, but the system shuts down after 1-2 secs.

Anybody have any idea what anything can i try?

Thanks:
Daniel

 

[dramirez]

Are the SCSI buses terminated? I read recently that the 8600/9600 don't boot when the buses are not correctly terminated, if you disconnect the buses they are not terminated...

 

[HunOmegared]

HDD termination jumper set, hdd on the last connector. No diff with or without scsi cable

 

[KGLlewellyn]

I had a similar issue with mine, it turned out to be a dead CPU Card, mine was a Kansas too.