Section 1. Power-On Self-Test
(POST)
The
IBM
PC
Convertible uses a set
of
routines called the
power-on self-test
(POST) routines. These routines
automatically activate system power, perform basic function
and
device control tests for the major system components,
and
initialize the system
to
the ready state. Because the
operation
of
these routines is automatic
and
cannot be
changed by an application programmer, the actual program
listings are not included
in
this manual. However, it
may
be
useful to understand the function
of
these routines
and
the
initial values they
may
establish.
Figure
I-Ion
page
1-2
shows the sequence
of
the steps the
power-on routines, the error indicators returned,
and
the
initial values established. Figure
1-2
on
page
1-9
and
Figure
1-3
on
page 1-12 provide additional information
on
testing for
the presence
of
devices.
Power-On Self-Test
(POST)
1-1
To Next Page
Loading...
Need help?
General