IBM 887022X Maintenance Manual - Page 251

supervisor

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Note: See Chapter 8, "Parts listing, Type 8870," on page 249 to determine which components are replaceable by the customer, and which components should be replaced by an IBM field service technician. AC good LED DC good LED Front Power good power on indicators light (center plane) Description FRU/action On On Blinking Off Standby power problem 1. View service processor error logs through serial connection of remote supervisor adapter. 2. Force power-on (see "Force power-on" on page 160) to eliminate suspect power/reset card. 3. Isolate with single SMP Expansion Module. 4. Disconnect the following items from the center plane in order to isolate the failing FRU: v Center plane light path cable and SCSI power cable (J8, J9) v PCI adapters v Fans 1 and 2 v I/O board cable attachments (J1, J2, J3, J8) (see "I/O board internal connectors" on page 166) 5. If no LEDs are lit after step 4, replace the following: a. Center plane VRM b. Center plane c. PCI-X board and VRM d. I/O board and VRM e. Remote Supervisor Adapter On On Off Off Power/reset card problem 1. Power/reset card (front panel) and cable 2. I/O board On On On On Power is OK. N/A Chapter 7. Symptom-to-FRU index 241

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Note:
See
Chapter
8,
“Parts
listing,
Type
8870,”
on
page
249
to
determine
which
components
are
replaceable
by
the
customer,
and
which
components
should
be
replaced
by
an
IBM
field
service
technician.
AC
good
LED
DC
good
LED
Front
power
on
light
Power
good
indicators
(center
plane)
Description
FRU/action
On
On
Blinking
Off
Standby
power
problem
1.
View
service
processor
error
logs
through
serial
connection
of
remote
supervisor
adapter.
2.
Force
power-on
(see
“Force
power-on”
on
page
160)
to
eliminate
suspect
power/reset
card.
3.
Isolate
with
single
SMP
Expansion
Module.
4.
Disconnect
the
following
items
from
the
center
plane
in
order
to
isolate
the
failing
FRU:
v
Center
plane
light
path
cable
and
SCSI
power
cable
(J8,
J9)
v
PCI
adapters
v
Fans
1
and
2
v
I/O
board
cable
attachments
(J1,
J2,
J3,
J8)
(see
“I/O
board
internal
connectors”
on
page
166)
5.
If
no
LEDs
are
lit
after
step
4,
replace
the
following:
a.
Center
plane
VRM
b.
Center
plane
c.
PCI-X
board
and
VRM
d.
I/O
board
and
VRM
e.
Remote
Supervisor
Adapter
On
On
Off
Off
Power/reset
card
problem
1.
Power/reset
card
(front
panel)
and
cable
2.
I/O
board
On
On
On
On
Power
is
OK.
N/A
Chapter
7.
Symptom-to-FRU
index
241