[rescue] Troubleshooting thoughts

[William Barnett-Lewis]

Good point to look at that too. I'll keep it in mind once I get my
Null Modem cable in hand.

On Sat, Feb 22, 2025 at 4:14 AM silcreval <silvercreekvalley at yahoo.com> wrote:
>
> It's always worth checking memory as well. I've had endless issues in the past with bad memory and they can be hard to diagnose. Systems can start, pass POST but then various things fail.
>
> Recently on an Ultra 2 I had issues with one of the CPU modules which was constantly failing in service, replacing the module had no effect, and I eventually tracked it down to bad memory.
>
> Just FYI.
>
> Ian
>
>
> On 21 Feb 2025, at 22:51, Alan Perry via rescue <rescue at sunhelp.org> wrote:
>
> I fired up my 320 (for the first time in a couple years).
>
> I tried taking one of the (6) DIMMs out and the system booted fine. It turns out that I have 2.5.1 installed on it.
>
> I also tried to boot it with a Ross 133MHz hyperSPARC mbus module. The PROM is Axil 320 specific (it says "320" on the label) and is version 2.19. It does not boot:
>
> Trap # 9 sfsr 3a6 sfar 4000000
> Ross afsr 0 Ross afar fc47c0
> Data Access ExceptionTrap # 9 sfsr 126 sfar a1480002
> Ross afsr 0 Ross afar fc47c0
> Data Access ExceptionTrap # 9 sfsr 126 sfar a1480002
>
> ... repeated until I powered down the system.
>
> alan
>
> On 2/21/25 1:40 PM, William Barnett-Lewis wrote:
>
> Unknown at this time. It did arrive with a Ross 90 MHz 256 cache CPU installed. I'll put it back in first when I get home from picking up my son from his welding class.
>
>
> On Fri, Feb 21, 2025, 15:35 Alan Perry <alanp at snowmoose.com> wrote:
>>
>> I can try stuff in my 320 (like an odd number of memory) to see if it works there.
>>
>> What is the PROM version?
>>
>> alan
>>
>> On Feb 21, 2025, at 13:08, William Barnett-Lewis via rescue <rescue at sunhelp.org> wrote:
>>
>> 
>> That's a really good thought. I don't have any previous experience with mbus machines, so that didn't occur to me. I'll try that when I get home in a bit.
>>
>> Thanks!
>>
>> William
>>
>> On Fri, Feb 21, 2025, 14:56 Mike Spooner via rescue <rescue at sunhelp.org> wrote:
>>>
>>> William,
>>>
>>> I would try it with just a single CPU module at a time (both of them, one at a time) - MBus modules are all very old now, and I've had an MBus module die completely before.
>>>
>>> Regards,
>>> Mike
>>>
>>>
>>> On 21 February 2025 19:17:08 GMT, William Barnett-Lewis via rescue <rescue at sunhelp.org> wrote:
>>>>
>>>> Got the Axil 320 and CPUs in today.
>>>> I've plugged in my dell flatscreen with a sun type 13w3->VGA adapter,
>>>> Type 5 keyboard and mouse, and ethernet cable. There are 5 memory
>>>> DIMMS (one in slot 0 marked 64mb, others unmarked). I pulled the
>>>> single 90mhz/256cache cpu and put in the 2 147s. I haven't gotten the
>>>> ZuluSCSI yet but hoped to get to the prompt.
>>>>
>>>> No such luck.
>>>>
>>>> I do get a single beep from the keyboard, all the led's flash once and
>>>> then nothing more. The most concerning thing is that one of the three
>>>> fans - the one closest to where the drives are - isn't spinning - and
>>>> there is as sort of undulating sound like going up and down. I let it
>>>> run for a good 15 minutes in case of dead NVRAM but still nothing came
>>>> up on video.
>>>>
>>>> I presume the next thing is to get a serial cable from A/B on the back
>>>> to my PC? Anything special I'll need for that? Then just any linux
>>>> terminal emulator should do.
>>>>
>>>> William
>>>
>>> _______________________________________________
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>>
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>
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