[rescue] Ultra 2 troubleshooting

[Ken Link]

You could try bypassing POST by holding Stop while turning on the machine.
There should be a line that says something like "Stop key detected.
Skipping POST" and then you can release the key.

It might also be worth clearing NVRAM settings - hold Stop and N while
turning on the machine until you see the system banner that displays the
CPUs and memory.

Did it boot successfully before your NVRAM modifications? It sounds like
you modified the original NVRAM - do you have another one you could try
swapping it with?



On Sun, May 1, 2022 at 9:30 PM Scott Quinn <saquinn624 at aol.com> wrote:

> Trying to troubleshoot my Ultra-2 2x300 machine.
>
> The NVRAM died, so I pulled it and replaced the battery being very
> careful as to polarity, etc. It has been a while since I powered it up,
> but on replacing the NVRAM and powering up I get this over serial:
>
> Hardware Power ON
>
> Master CPU online
>
> Master Version: xxx
>
> Slave Version: xxx
>
> CPU E$(M): XXX
>
> Button Power ON
>
> Probing keyboard done
>
> %o0 XXX
>
> Executing Power On SelfTest
>
> and then it sits. I know it takes a while when heavy diags are on, but
> this just sits for hours with the caps lock not even flashing and no
> other keyboard lights on. Per the service manual that is DSIMM in
> U604/704 (bank 8) issues, but it even does that when I have it stripped
> down to a single set of DSIMMS in bank 0.
>
> Any tips?
>
>
> _______________________________________________
> rescue list - http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org
>
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