28 Sep
2005
28 Sep
'05
12:09 p.m.
On Tue, 27 Sep 2005, Jim Leonard wrote:
While it is rare that a minor error will surface in,
say, the CPU (I have NEVER
seen a CPU go gradually, like "whoops, now I can't ADD or SHL" -- it's
all or
nothing), the diagnostics run in something like 1K of ROM with no memory use
other than video so they are helpful in diagnosing RAM problems. And the
sound, joystick, video, and floppy drive tests are helpful in determining if
the machine is functional on a basic level -- I always run them on any new PCjr
I come across to determine if it's worth hauling away or not :-)
Hey Jim.
How do you access the diagnostics?
--
Sellam Ismail Vintage Computer Festival
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