On 04/01/2020 02:08 AM, Rob Jarratt via cctalk wrote:
I mistakenly bought some memory thinking it was for a VAXstation 4000 VLC.
It turns out that it isn't. It physically fits a VAXstation 4000 Model 60,
but putting it in that machine the machine fails to power up. The part
number is 50-19464-02, and I am unable to identify what machine it works in.
Can anyone tell me where to find out?
Is it possible the board is defective? Does it have
tantalum capacitors? A VERY well-known failure
mechanism of these is that they will work fine for years,
but if left unpowered for about two years, they will fail to
a shorted condition when powered on again.
In surface mount style, they will be little yellowish blocks
with a bar engraved or printed on one end.
Locating the one or two bad ones is an exercise in major
frustration!
Jon
