[rescue] Sun Kit Needed for EE Student Here
wa2egp at att.net
wa2egp at att.net
Thu May 4 00:50:26 CDT 2006
> Again, apples and oranges. That Tyan motherboard has far
> higher speed trace than the old U60 board you put there.
> That may give you a hint on why them caps are there, I
> recommend a remedial review on concepts such as line
> decoupling. And you are assuming that somehow SUN board =
> good, and Tyan board = bad. Well if capacitors are a
> metric of bad design then the latest SUN offerings must be
> aweful, lets look at the insides of a T2000:
>
> http://204.3.197.26/perspectives/wp-content/t2000_inside.jpg
>
> Plenty of caps there, I guess the quality of sun design
> must have gone through the drain. Afterall... look at all
> them caps!
Line decoupling? Heck, old S-100 machines didn't use as many
electolytics as that PC board and electrylytics don't work very well
at higher frequencies. The circuit must really pull the
+V down.
Bob
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