Re: Super II questions

[dempson@actrix.gen.nz (David Empson)]

Edhel Iaur, Esq. <drsmooth@relex.com> wrote:

> shack@onyx.southwind.net (Randy Shackelford) wrote:
> 
> >The self test failed
> >with "IOU FLAG" but I know the chip is good.
> 
> My unenhanced //e's self-test also fails with that message ("IOU
> FLAG:E5 1", I think) about 1 out of 15 times.  Wierd.

I saw that failure quite often on the unenhanced IIe if the self-test
was run immediately after certain other software (but I can't remember
which software - this would have been in 1983 or 1984).  Rebooting with
Ctrl-Apple-Reset then running the self test again usually cleared it.

It appears that the original firmware's self test doesn't set up some
soft-switch properly.  If it has been left in an unusual state by
previous software, the self test thinks there is a problem.

I've never seen this problem reported on an enhanced IIe, so they
presumably fixed the self test.

-- 
David Empson
dempson@actrix.gen.nz
Snail Mail: P.O. Box 27-103, Wellington, New Zealand