System
Attention
LEDs
On
the
processor
subsystem,
there
are
two
system
attention
LEDs,
one
on
the
DCA
and
the
other
on
the
rear
of
the
system.
For
the
specific
locations
of
these
LEDs,
refer
to
the
following
illustration.
Hot Plug Slot ID
Hot Plug Slot Power
DCA
Power In
Power Out
System Attention
DCA FRU Identify
Fan FRU Identify
DASD Backplane
Activity Identify
Hardfile 1
Activity Identify
Hardfile 2
DASD Cage
FRU Identify
Light Pipes to
make LED visible
with File plugged
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
Enet 0
Enet 1
Link Status
Hardfile
Carrier
Memory Card 1
Memory Card 3
Memory Card 4
Memory Card 2
System Attention
SP Adapter FRU Indicator
Service Processor FRU Indicator
Processor Planar FRU Indicator
Bank 1
Bank 2
FRU Indicator
Cable Identify
Port 1 Port 0
1
Ethernet
Port
1
11
Memory
Controller
1
21
DASD
Ribbon
Cable
Connector
2
Ethernet
Port
0
12
Memory
Controller
3
22
Service
Processor/VPD
Card
Connector
3
RIO
(or
RIO-2)
Port
0
(A0)
13
Memory
Controller
2
23
SP
Adapter
Connector
4
RIO
(or
RIO-2)
Port
1
(A1)
14
L3
Cache
Module
0
24
PCI-X
Bridge
(PH2)
5
RIO
(or
RIO-2)
Adapter
15
L3
Cache
Module
1
25
PCI-X
Bridge
(PH0)
6
Memory
Card
Slot
1
16
L3
Cache
Module
3
26
PCI
Adapter
Slot
1
7
Memory
Card
Slot
2
17
L3
Cache
Module
2
27
PCI
Adapter
Slot
2
8
Memory
Card
Slot
3
18
MCM
Module
(processor)
28
PCI
Adapter
Slot
3
9
Memory
Card
Slot
4
19
RIO/PCI-X
Bridge
10
Memory
Controller
0
20
SCSI
Controller
The
two
LEDs
are
tied
together,
so
they
will
always
be
in
the
same
state,
either
both
on
or
both
off.
They
are
referred
to
as
the
system
attention
LEDs
.
The
system
attention
LED
is
turned
on
when
an
entry
is
Chapter
2.
Introducing
the
pSeries
655
11
Summary of Contents for p 655 series
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