23 Apr
2016
23 Apr
'16
10:57 a.m.
On Sat, 23 Apr 2016, Robert Jarratt wrote:
Well! I took out the DROM and switched it on again.
The machine bleeped at
me, but then it gave me a console and I was able to boot VMS!
I'm glad that it worked, this will certainly make further diagnostics
easier, and you have a usable machine anyway.
I will have to see if the NVRAM is now populated and
whether it will
continue to work with the DROM installed.
First: to double-check, how did you know it was a NVRAM failure, did LEDs
show DC (xxox xxoo)?
Second: it may also be that DROM itself is faulty, a bit may have flipped
for example; NB this is UV EPROM, so things happen. Maybe someone can
share a known-good image.
Thanks!
You are welcome!
Maciej