Problem determination tips, File updates, Adding adapters to the system – IBM 6643 User Manual
Page 114: Problem, Determination, Tips, File, Updates, Adding, Adapters
Problem
determination
tips
Because
there
is
a
large
variety
of
hardware
and
software
combinations
that
can
be
encountered,
use
the
following
information
to
assist
you
in
problem
determination.
v
Verify
any
recent
hardware
changes.
See
v
Verify
any
recent
software
changes.
See
v
Verify
that
the
BIOS
is
at
the
latest
level.
See
v
Verify
that
the
drivers
are
at
the
latest
levels.
See
v
Verify
that
the
Configuration
matches
the
hardware.
See
v
Verify
that
the
Diagnostics
diskette
is
at
the
latest
level.
See
As
you
go
through
problem
determination,
consider
these
questions.
v
Do
diagnostics
fail?
v
What,
when,
where,
single,
or
multiple
systems?
v
Is
the
failure
repeatable?
v
Has
this
configuration
ever
worked?
v
If
it
has
been
working,
what
changes
were
made
prior
to
it
failing?
v
Is
this
the
original
reported
failure?
Important
To
eliminate
confusion,
systems
are
considered
identical
only
if
the
following
are
exactly
identical
for
each
system:
1.
Machine
type
and
model
2.
BIOS
level
3.
Adapters/attachments
(in
same
locations)
4.
Address
jumpers/terminators/cabling
5.
Software
versions
and
levels
6.
Reference/Diagnostics
Diskette
7.
Configuration
options
set
in
the
system
8.
Setup
for
operation
system
control
files
Comparing
the
configuration
and
software
setup
between
“working”
and
“non-working”
systems
will
often
resolve
problems.
File
updates
Use
the
IBM
support
area
on
the
World
Wide
Web
(WWW)
to
download
Diagnostic,
BIOS
Flash,
and
Device
Driver
files.
http://www.ibm.com/support
Adding
adapters
to
the
system
When
adapters
are
added
to
the
system,
an
area
in
memory
has
to
be
allocated
to
run
its
programs.
This
can
be
done
with
either
hardware
switches
or
software
mapping
.
If
there
is
a
conflict
in
software
mapping,
then
the
following
may
be
true.
v
The
first
device
to
attach
to
an
IRQ,
DMA,
I/O
Address,
or
RAM
location
will
probably
function.
The
second
device
will
not
be
found.
106
Hardware
Maintenance
Manual