System Attention Leds - IBM p 655 series User Manual

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.
4
5
3
2
1
Link Status
Enet 0
Enet 1
SP Adapter FRU Indicator
Service Processor FRU Indicator
Processor Planar FRU Indicator
1 Ethernet Port 1
2 Ethernet Port 0
3 RIO (or RIO-2) Port 0
(A0)
4 RIO (or RIO-2) Port 1
(A1)
5 RIO (or RIO-2) Adapter
6 Memory Card Slot 1
7 Memory Card Slot 2
8 Memory Card Slot 3
9 Memory Card Slot 4
10 Memory Controller 0
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
Cable Identify
Port 1 Port 0
6
11
10
7
8
12 13
9
23
26
27
25
28
Hot Plug Slot ID
Hot Plug Slot Power
FRU Indicator
Bank 2
System Attention
11 Memory Controller 1
12 Memory Controller 3
13 Memory Controller 2
14 L3 Cache Module 0
15 L3 Cache Module 1
16 L3 Cache Module 3
17 L3 Cache Module 2
18 MCM Module
(processor)
19 RIO/PCI-X Bridge
20 SCSI Controller
15
14
18
16 17
20
19
21
24
22
Hardfile
Carrier
Activity Identify
Hardfile 1
DASD Cage
FRU Identify
DASD Backplane
Bank 1
Memory Card 1
Memory Card 2
Memory Card 3
Memory Card 4
21 DASD Ribbon Cable Connector
22 Service Processor/VPD Card Connector
23 SP Adapter Connector
24 PCI-X Bridge (PH2)
25 PCI-X Bridge (PH0)
26 PCI Adapter Slot 1
27 PCI Adapter Slot 2
28 PCI Adapter Slot 3
Chapter 2. Introducing the pSeries 655
DCA
Power In
Power Out
System Attention
DCA FRU Identify
Fan FRU Identify
Activity Identify
Hardfile 2
Light Pipes to
make LED visible
with File plugged
11