[rescue] SPARCstation 1 boot woes

[Dave McGuire]

On 10/21/25 19:09, David McMackins II via rescue wrote:
> It is with great dismay that I report that this netboot setup exhibits
> the same behavior as current NetBSD. It seems there is a subtle
> hardware issue after all.
> 
> The only idea that I've come up with as a shot in the dark is that it
> could be a power supply issue of some sort. That is, during the boot
> sequence (or POST sequence on OBP 1.0), the power demand from the
> system increases, and one of the PSU voltages drops below a critical
> threshold and causes malfunctions.
> 
> I don't have a spare SS1 power supply laying around, though, and I'm
> not really sure how I'd go about testing this hypothesis otherwise,
> unless I could measure something very obviously wrong.

   Are you anywhere near Pittsburgh, PA?  We at LSSM can help you narrow 
this down, but that'd pretty much have to be done in person.

              -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA