IBM Power Series User Manual

Top (8412-EAD, 9117-MMD, 9179-MHC with four-processor system unit, or 9179-MHD)
Table 24. FRU location table
Failing item name Physical location code Identify LED
Failing item
removal and
replacement
procedures
System unit Un
Fans
Fan 1 Un-A1 Yes See Fans.
Fan 2 Un-A2 Yes
Fan 3 Un-A3 Yes
Fan 4 Un-A4 Yes
Fan 5 Un-A5 Yes
Power supplies
Power supply 1 Un-E1 Yes See Power
supply.
Power supply 1 - Line cord Un-E1-T1
Power supply 2 Un-E2 Yes
Power supply 2- Line cord Un-E2-T1
Battery pack (left) Un-P2-C9-C1-E1
Battery pack (right) Un-P2-C9-C1-E2
Backplanes
Midplane Un-P1 Yes
I/O card Un-P2 Yes
System processor assembly Un-P3 Yes
78 Finding parts, locations, and addresses

IBM Power Series Specifications

General

Operating System	AIX, IBM i, Linux
Architecture	POWER
Processor	POWER9 or POWER10
Threads per core	4
Memory	Up to several TB per server
Storage	Multiple NVMe, SSD, HDD options
Form Factor	Rackmount
Power Supply	Redundant power supplies
Networking	Gigabit Ethernet, 10 Gigabit Ethernet
Use Cases	Enterprise workloads, AI, Cloud