IBM 8874 Installation Guide - Page 89

Light, diagnostics, panel

Get IBM 8874 - eServer xSeries MXE 460 PDF manuals and user guides
UPC - 000435813008
View all IBM 8874 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 89 highlights

v A new error occurs, causing the system-error LED to be lit again. Light path diagnostics panel The following table lists the LEDs on the light path diagnostics panel, the problems that they indicate, and actions to solve the problems. v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician. Lit light path diagnostics LED with the system-error LED also lit Description Action All LEDs off (the power LED is lit). No action necessary. OVERSPEC There is insufficient power to power the system. The NON RED and LOG LEDs might also be lit. 1. Add an optional power supply if only one power supply is installed. 2. Use 220 V ac instead of 110 V ac. 3. Reseat the following components: a. Power supply b. (Trained service technician only) Power backplane 4. Remove optional devices. 5. Replace the components listed in step 3 one at a time, in the order shown, restarting the server each time. PS A power supply has failed or has 1. Reinstall the removed power supply. been removed. Note: In a redundant power configuration, the dc power LED on 2. Check the individual power-supply LEDs to find the failing power supply. one power supply might be off. 3. Reseat the following components: a. Failing power supply b. (Trained service technician only) Power backplane 4. Replace the components listed in step 3 one at a time, in the order shown, restarting the server each time. 5. If a 12 V fault has occurred, ac power must be removed before dc power can be restored. LINK There is a fault in an SMP 1. Check the SMP Expansion Port link LEDs to find Expansion Port or SMP Expansion the failing port or cable. cable. Note: The SMP Expansion Port link 2. Reseat the SMP Expansion cables. LED on the failed port is off. 3. Replace the SMP Expansion cables. 4. (Trained service technician only) Replace the scalability cartridge assembly. If the scalability cartridge assembly must be replaced, call for service. Chapter 6. Solving problems 77

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
v
A
new
error
occurs,
causing
the
system-error
LED
to
be
lit
again.
Light
path
diagnostics
panel
The
following
table
lists
the
LEDs
on
the
light
path
diagnostics
panel,
the
problems
that
they
indicate,
and
actions
to
solve
the
problems.
v
Follow
the
suggested
actions
in
the
order
in
which
they
are
listed
in
the
Action
column
until
the
problem
is
solved.
v
See
the
parts
listing
in
the
Problem
Determination
and
Service
Guide
to
determine
which
components
are
customer
replaceable
units
(CRU)
and
which
components
are
field
replaceable
units
(FRU).
v
If
an
action
step
is
preceded
by
“(Trained
service
technician
only),”
that
step
must
be
performed
only
by
a
trained
service
technician.
Lit
light
path
diagnostics
LED
with
the
system-error
LED
also
lit
Description
Action
All
LEDs
off
(the
power
LED
is
lit).
No
action
necessary.
OVERSPEC
There
is
insufficient
power
to
power
the
system.
The
NON
RED
and
LOG
LEDs
might
also
be
lit.
1.
Add
an
optional
power
supply
if
only
one
power
supply
is
installed.
2.
Use
220
V
ac
instead
of
110
V
ac.
3.
Reseat
the
following
components:
a.
Power
supply
b.
(Trained
service
technician
only)
Power
backplane
4.
Remove
optional
devices.
5.
Replace
the
components
listed
in
step
3
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time.
PS
A
power
supply
has
failed
or
has
been
removed.
Note:
In
a
redundant
power
configuration,
the
dc
power
LED
on
one
power
supply
might
be
off.
1.
Reinstall
the
removed
power
supply.
2.
Check
the
individual
power-supply
LEDs
to
find
the
failing
power
supply.
3.
Reseat
the
following
components:
a.
Failing
power
supply
b.
(Trained
service
technician
only)
Power
backplane
4.
Replace
the
components
listed
in
step
3
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time.
5.
If
a
12
V
fault
has
occurred,
ac
power
must
be
removed
before
dc
power
can
be
restored.
LINK
There
is
a
fault
in
an
SMP
Expansion
Port
or
SMP
Expansion
cable.
Note:
The
SMP
Expansion
Port
link
LED
on
the
failed
port
is
off.
1.
Check
the
SMP
Expansion
Port
link
LEDs
to
find
the
failing
port
or
cable.
2.
Reseat
the
SMP
Expansion
cables.
3.
Replace
the
SMP
Expansion
cables.
4.
(Trained
service
technician
only)
Replace
the
scalability
cartridge
assembly.
If
the
scalability
cartridge
assembly
must
be
replaced,
call
for
service.
Chapter
6.
Solving
problems
77