IBM 8479 Hardware Maintenance Manual - Page 101

FRU/Action

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General FRU/Action CD-ROM drive tray is not working. (The server must be powered-on.) 1. Insert the end of a paper clip into the manual tray-release opening. 2. Run CD-ROM diagnostics. 3. CD-ROM Drive CD-ROM drive is not recognized. 1. Run Configuration/Setup, enable primary IDE channel. 2. Check cables and jumpers. 3. Check for correct device driver. 4. Run CD-ROM diagnostics. 5. CD-ROM drive 6. System Board Power switch does not work. 1. Verify that switch number 5 of switch block is Off. 2. Power Switch Assembly 3. System Board CD-ROM drive cable is not 1. Make sure CD-ROM drive cable is plugged in. plugged in. SCSI expansion enclosure used to work, but does not work now. Verify that: 1. The cables for all external SCSI options are connected correctly. 2. The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly. 3. External SCSI options are turned on. You must turn on external SCSI options before turning on the system. For more information, see the SCSI and expansion enclosure documentation. Diskette drive in-use light stays on, or the system bypasses the diskette drive, or the diskette drive does not work. 1. If there is a diskette in the drive, verify that: a. The diskette drive is enabled in the Configuration/Setup utility program. b. The diskette is good and not damaged. (Try another diskette if you have one.) c. The diskette is inserted correctly in the drive. d. The diskette contains the necessary files to start the server. e. The software program is OK. f. Cable is installed correctly (proper orientation) 2. Run Diskette Drive Diagnostics. 3. Cable 4. Diskette Drive 5. System Board Not all drives are recognized 1. Remove first drive that does not show up and rerun diagnostic. If remaining by fixed disk diagnostic. drives show up, replace the one that was removed. 2. If remaining drives do not show up, remove successive drives one at a time and rerun diagnostic. System hangs during fixed 1. Remove hard drive being tested at the time of the hang and rerun the disk diagnostic. diagnostic. If successful, replace drive that was removed. Monitor problems (general). 1. Monitor Some IBM monitors have 2. Run Video Diagnostics. If diagnostics pass, the problem may be a video driver. their own self-tests. If you 3. Display Adapter / System Board suspect a problem with the monitor, refer to the information that comes with the monitor for adjusting and testing instructions. Symptom-to-FRU index 93

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General
FRU/Action
CD-ROM
drive
tray
is
not
working.
(The
server
must
be
powered-on.)
1.
Insert
the
end
of
a
paper
clip
into
the
manual
tray-release
opening.
2.
Run
CD-ROM
diagnostics.
3.
CD-ROM
Drive
CD-ROM
drive
is
not
recognized.
1.
Run
Configuration/Setup,
enable
primary
IDE
channel.
2.
Check
cables
and
jumpers.
3.
Check
for
correct
device
driver.
4.
Run
CD-ROM
diagnostics.
5.
CD-ROM
drive
6.
System
Board
Power
switch
does
not
work.
1.
Verify
that
switch
number
5
of
switch
block
is
Off.
2.
Power
Switch
Assembly
3.
System
Board
CD-ROM
drive
cable
is
not
plugged
in.
1.
Make
sure
CD-ROM
drive
cable
is
plugged
in.
SCSI
expansion
enclosure
used
to
work,
but
does
not
work
now.
Verify
that:
1.
The
cables
for
all
external
SCSI
options
are
connected
correctly.
2.
The
last
option
in
each
SCSI
chain,
or
the
end
of
the
SCSI
cable,
is
terminated
correctly.
3.
External
SCSI
options
are
turned
on.
You
must
turn
on
external
SCSI
options
before
turning
on
the
system.
For
more
information,
see
the
SCSI
and
expansion
enclosure
documentation.
Diskette
drive
in-use
light
stays
on,
or
the
system
bypasses
the
diskette
drive,
or
the
diskette
drive
does
not
work.
1.
If
there
is
a
diskette
in
the
drive,
verify
that:
a.
The
diskette
drive
is
enabled
in
the
Configuration/Setup
utility
program.
b.
The
diskette
is
good
and
not
damaged.
(Try
another
diskette
if
you
have
one.)
c.
The
diskette
is
inserted
correctly
in
the
drive.
d.
The
diskette
contains
the
necessary
files
to
start
the
server.
e.
The
software
program
is
OK.
f.
Cable
is
installed
correctly
(proper
orientation)
2.
Run
Diskette
Drive
Diagnostics.
3.
Cable
4.
Diskette
Drive
5.
System
Board
Not
all
drives
are
recognized
by
fixed
disk
diagnostic.
1.
Remove
first
drive
that
does
not
show
up
and
rerun
diagnostic.
If
remaining
drives
show
up,
replace
the
one
that
was
removed.
2.
If
remaining
drives
do
not
show
up,
remove
successive
drives
one
at
a
time
and
rerun
diagnostic.
System
hangs
during
fixed
disk
diagnostic.
1.
Remove
hard
drive
being
tested
at
the
time
of
the
hang
and
rerun
the
diagnostic.
If
successful,
replace
drive
that
was
removed.
Monitor
problems
(general).
Some
IBM
monitors
have
their
own
self-tests.
If
you
suspect
a
problem
with
the
monitor,
refer
to
the
information
that
comes
with
the
monitor
for
adjusting
and
testing
instructions.
1.
Monitor
2.
Run
Video
Diagnostics.
If
diagnostics
pass,
the
problem
may
be
a
video
driver.
3.
Display
Adapter
/
System
Board
Symptom-to-FRU
index
93