DEC 3000/600 Alphaserver problems

[Maciej W. Rozycki]

On Wed, 12 Jan 2022, Jon Elson via cctalk wrote:

> > Thanks Jon.
> > 
> > Here is a badly focused picture of the suspect components:
> > 
> > http://www.beyondthepale.ie/cctech/p1010198.jpg
> 
> WOW, I don't know what those are!  They look like big ceramic caps to me, but
> if they don't have any polarity marking, then they can't be Tantalum.  Big
> multilayer ceramics are prone to cracking due to board flexing, and that can
> cause catastrophic failure, too.

 They do look like tantalum caps to me, e.g.:

<https://www.mouser.co.uk/ProductDetail/74-595D106X9025C2T>

The pointed end indicates polarity.

  Maciej