Re: IIe faulty RAM ?

["Mark Cummings" <NOTfigjams@primus.com.au>]

Ed,

> Wow, thank you for the excellent example of how to trouble shoot.  It
> looks like your technique may be flawed though.  Where's the 'R' as in
> Remove extraneous circuits?

CEPIO is how I was taught, however computers are a little different so I
take your point, and from my experience on PCs (not necessarily training),
remove the extras in any case. I also use a technique of double checking
parts in other systems, sometimes just a glitch, dirty connector, power
spike, whatever causes a fault. Not necessarily anything wrong.

> Before you think me
> perfect, yes, I too have suffered the occasional brain fart.

There is nothing wrong with making errors in fault finding, sometimes the
only way forward is to have a guess, then if that's proven to be wrong,
backtrack and  go the other way. I don't call that imperfect, just logical.
I actually think I learn more when I go the wrong way than when I go the
right way, because I find out why I was wrong. If I go the right way all the
time, there is just the "luck" element and I learn nothing.

> As for my creds, very similar to yours.

Pleased to hear.

On checking my local RAM/Electronics suppliers, the 41464C-10's are not a
real hot seller anymore :)
So any ideas where to get them. I've checked about a half dozen vintage PC
video cards and motherboards, havn't found anything yet. What I might try,
for the sake of enlightenment, is swapping the RAMs between two
motherboards. Then whether I ever finish fixing it or not is irrelevant, at
least I got to where I wanted to.

Mark