On Tuesday 27 May 2008 23:05, Fred Cisin wrote:
On Tue, 27 May 2008, Andrew Lynch wrote:
Has anyone have or know where to get an IBM XT
(5160) diagnostic ROM? I
am trying to revive an original IBM XT motherboard which is nonresponsive
and gives no error codes (beep or POST).
I am not even sure such a ROM exists but it would be a 27C256 style EPROM
that plugs into an IBM XT motherboard to help fault isolate an almost
completely dead unit.
It DID exist. Todd Fischer? made a diagnostic ROM. It came with a serial
board, and required that you supply a terminal. The chances of my finding
mine are zilch. Unlike a POST card, it could diagnose a dead CPU, etc.
How the heck is a diagnostic ROM going to diagnose a dead CPU? I must be
missing something here...
--
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"
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Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin