Very very big crash on a //GS

[cf@calvanet.calvacom.fr (Cedric Filhol)]

What is the configuration.

Apple //GS ROM 0
GS color screen
Memory card with 256k on it
5'25 controler card in slot 6 with one drive
printer card in slot 1
3'5 drive pluged in the back of the GS
GS keyboard and mouse


How it happened.

I boot my GS on the ProDOS8 v1.5 5'25 disk. I quit basic with <BYE> and
then run the SYSUTIL.SYSTEM (Apple II System Utilities v3.1). I choose
FORMAT A DISK in the slot 5 drive 1 (an Apple 3'5 drive). It starts
working and suddenly stops and doesn't say anything. I try to reboot
<Ctrl-OpenApple-Reset> but it doesn't work. I switch the GS off, wait a
little, and switch it on. I got a white screen and nothing else. No boot
anywhere, no message, no sound, doesn't want to reset. I can't get
anything else since then.


What I tried.

Unplug power supply, wait, re-plug
Unplug 3'5 drive
Unplug Keboard and mouse
Remove 5'25 card
Remove printer card
Remove memory card
Unplug screen

...doesn't change anything


Other stuff

I opened the GS, it seems not to be hot inside.
I can still eject 3'5 disk and the screen is working so I don't think the
power supplit unit is involved.
Sometimes when it was left doing nothing for a moment the keboard was not
responding and I had to Reset (Reset from keboard was still working).


Please help !

Did someone ever had this kind of problem ?
What to do ? (if something can be done)
I REALLY feel anxious about my GS health :-(


Cedric Filhol
cf@calva.net