19 Jan
2018
19 Jan
'18
12:58 a.m.
manipulate
SSSD images then tonight I read a message on VCFED from
our own Chuck Guzis saying there were two controller chips in the
1542CF (national and broken Intel) and I discovered I had a broken
Intel one.
I may have cussed.
Perhaps all is not lost. I'd have to go and look at my 1542CF, but I
believe that I discovered that it uses either the Intel 82077 or the
National PC8477 chip. That being the case, if you're handy, you can
simply replace the Intel
chip with the National one. They're pretty much pin-compatible (the NSC
one requires a couple fewer external components).
I could, but I guess by the time I?ve sourced a replacement I might as well have bought an
AHA-1522A instead, I have a couple of scouts out looking for them as we speak :) The 1522A
is a full pass for TESTFDC.
There are many other SCSI controllers that have decent FDCs. I've had
good luck with Ultrastor and Future Domain cards, for example.
I noticed a couple of boards on the list that I might?ve gone past in the ?spare old
boards? box at work earlier and discounted because they were too ?new?, an Asus one and
Aopen one which are both Athlon based. They both do SSSD so it?s also an avenue worth
pursuing.
Cheers!
?
Adrian/Witchy
Binary Dinosaurs - Celebrating Computing History from 1972 onwards
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