6 Oct
2007
6 Oct
'07
4:09 p.m.
On Saturday 06 October 2007 17:30, Tony Duell wrote:
PGC = Professional Graphics Controller. An IBM board set (3 boards
fitting into 2 adjacent ISA slots (there's a memory PCB sandwiched
between them) that form an intellegent-ish graphics card with an 8088 to
control it (!). I have the techref, I'd love to play with the boards.
Ah. I was wondering about that too. If you'd said "PGA" I would've had
a
clue right off.
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
Again, how on earth cna you know what the fault is if
you can't diagnose
it. You mentioned swapping a DIMM. How can you know if an intermittant
memory problem is a fault in the DIMM or in the memory controller on the
motherboard?
I've wondered about that for a while now. I've used various memory
diagnostics on different machines over the years, and basically they all
seem to have in common that they write different patterns to memory and then
read it back for comparison. While this is okay as far as it goes, how DO
you deal with the situation you mention there?
Another one I ran into some years back (my first purchased 386 board actually)
was what appeared to be a problem with cache. I *still* have no idea whether
the lockups I was seeing that went away when I disabled external cache were
the fault of the cache ram or something on the MB, and I've never run across
anything that appeared to be capable of testing that function.
Actually, there are some ISA boards I am still looking
for. Top of the
list is an origianl IB< PGC.
I don't know what that is. I have a bag of ISA kit: mostly multi-I/O