Re: Freakin' Second Sight Board

[rubywand@aol.com (RUBYWAND)]

In article <Pine.SUN.3.91.951224100837.12985A-100000@moose>, Paul Schultz
<pschultz@med.wayne.edu> writes:

>
>If you can't get it to work even with ONLY the memory card and SCSI card,
>try to remove the SCSI card and boot from floppy and see if that works.
>Crazy as it may sound, I can boot if I don't have either my ZipGS or my
>RamFAST installed. Together, these cards have caused my SS to display the
>same symptoms you have described.
>
>
    It does not sound crazy.

    When a Zip-GS 10/64 was swapped-in for a '9/32, similar problems
cropped up on our IIgs. The cure was a power supply fix-- not a new,
"heavy duty" power supply.

    Mainly, there are two problems:  (1) Noise on the +5V line and,
perhaps, on the +12V line; and,   (2) The voltages getting to the cards in
the slots is too low. The cure is to fatten-up the +5V, +12V, and Ground
leads running from the power supply to the connector-- swap-in #14 gauge
or #12 gauge stranded copper leads-- and, probably, on the under side of
the motherboard, run #18 gauge leads from the power supply connector +5V
and +12V points to the corresponding points on Slots 3 and 7.