2 Nov
1998
2 Nov
'98
10:46 a.m.
Max Eskin wrote:
Actually, I'm wondering how those things work. Do they read the POST
code off the motherboard, or do they do their own diagnosis? I've
looked at the ads in various magazines, but never thought it had
much potential.
Basically, the bios startup routines output a number to a port address as
they start each part of the test, and that number is displayed on the POST
card. I/O port 180h comes to mind for the IBM (it is different for Compaq)
but my memory may be faulty.