jojo@astroatc.UUCP (Jon Wesener) (09/01/88)
Since there's a lot of talk about expansion interfaces, I thought
I'd pass this on to people who already own or are looking at the
subsystem 500.
I put an A2090 controller in one and experienced strange disk
behaviour, like sudden disk read/write errors after prolonged use.
The problem turned out to be overheating. The a2090 gets pretty
hot, and with no fan in the expansion box, this heat make the
controller act funny and also sends heat on up to your A500. There
was SO MUCH heat that it was getting uncomfortable to type...
A small fan was a cheap and easy solution and now everything
has been working without a hitch ever since. I feel a lot safer
getting a memory board now.
By the way, I do like my subsystem 500, but the line in the
advertisements saying that putting the expansion box under
your keyboard makes it easier to type is a crock of shit. Maybe
if your fingers are 7 inches long...
Out of curiousity, has anyone tried connecting the expansion
box with a shielded bus cable so that you wouldn't have to have
the thing underneath your amy? Is there any problems with doing
this, like maximum lengths the bus can be stretched?
Hope this helps someone,
--j
--
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"Some people should die, it's just unconscious knowlege"