19 Aug
1999
19 Aug
'99
5:27 a.m.
At 08:56 PM 8/18/99 -0500, Jay wrote:
>Well, once again I come to the well for
knowledge.....:) Seeking advice from
>those up on core memory
>
>I'm kinda lost on checking out the memory in my HP 2100. I have two 2100's,
>each with four 8K boards or 32k per machine. I had lots of parity errors so
>I lined up all eight 8K boards on the bench...
Ok, here is one that is likely to sound a bit odd, but... (you asked for
it) B^}
Let the machine warm up for a while before running the test.
Core being rather timing sensitive, it has been related to me from another
local collector that his PDP-8 (yes, a 'straight' 8) with core is
completely useless until is has idled for thirty minutes to an hour
(depending on the ambient temperature) to allow internal temperatures to
stabilize.
He has mentioned sections that will refuse to store data, fail memory
tests, etc... All of which mysteriously vanish after a 'warm up' period.
FWIW
-jim
---
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