[rescue] sunpc fail

[Dave McGuire]

On 8/31/23 12:03, silcreval via rescue wrote:
>>Does the SunPC software work when the SunPC card is *not* installed? It should do (at least for a DOS session), slowly, as it uses software emulation if the card is not >there. I used to use it exactly that way, back in the 90s.
> 
>>If the SunPC software won't even do that,  you have a problem that is not merely with the card itself.
> 
> Yes it runs fine without the Accelerator fitted, I get the SunPC window and Caldera OpenDOS starts up. I did try updating to SunPC 4.2 and that works fine (without the card) as well.
> 
> With the card fitted, it immediately faults when you run sunpc, and in fact the machine reboots which is pretty severe :/
> 
> I did test the 486 as its socketed and that works fine, and the clock signals etc all look sane. Its a shame as the cards are not too common. There is nothing obvious that is damaged on the board everything looks good under a magnifier.

   Did you check the Sbus connector?  I've seen a few Sbus (and Mbus) 
cards recently that had pins bent and folded over.

             -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA