2 Aug
2016
2 Aug
'16
9:57 a.m.
Back in the day we were running and selling 2000 gear in the 80's never
had a bad power supply. one fan died in our 2000 F/ access system and
rather than tear it down to replace the fan.... just bolted a mother of a
fan to the back of the processor over the space the dead fan was.
Like the story of the shoemakers kids that never got new shoes as the
shoemaker was busy helping everyone else.... this poor processor to this
very day still has that fan on the back of the processor......
Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 8/2/2016 9:42:19 A.M. US Mountain Standard Time,
glen.slick at gmail.com writes:
On Mon, Aug 1, 2016 at 10:25 PM, Lyle Bickley <lbickley at bickleywest.com>
wrote:
On Mon, 1 Aug 2016 22:11:17 -0700
Bob Rosenbloom <bobalan at sbcglobal.net> wrote:
--snip--
That is good information to know. I have a 2100A that I haven't
touched in a while. It had memory issues that I never got around to
trying to debug. Next time I work on it I'll look at the IDL card.
There's a bunch of small electrolytic
capacitors on the Inhibit
Driver Load Card, A106, that needed to be reformed before my memory
would work reliably.
They reformed themselves in one of my units. I
had memory errors for
an hour or so then they went away. On other units, I reformed the
caps (took the board
out and slowly brought it up on a bench supply),
and had no memory
errors at first power up of the system.
Bob
I had exactly the same problem with the capacitors on a spare Inhibit
Driver Load Card. Most would not reform so I just replaced them with
modern caps. The board (and memory) worked perfectly after that.
Lyle