Identify And Replace Uepo Cable <= Ssr Task - IBM Power775 Service Procedure

3.2 Identify and Replace UEPO Cable <= SSR Task
1.
You should have downloaded this procedure from the InfoCenter Website listed here to ensure you are using the
latest version and ensure no pages are missing by verifying the last section is titled "End of Document":
http://publib.boulder.ibm.com/infocenter/powersys/v3r1m5/topic/p7ee2/p7ee2kickoff.htm
2.
If using printed copies of these procedures, then be sure to staple or paperclip the pages together to help keep them
in the right page number sequence.
3.
An HMC Service Focal Point SRC FRU Call or direction from a higher level of support should have directed you to
perform this procedure
4.
Ensure the UEPO Panel switch is ON (double-red-switch in UP position -- reference Figure 7 UEPO Panel location
on Front Door below). The HMC can be accessed via the keyboard/display that resides in the management rack
5.
Locate rack that requires service.
6.
If the rack could not be located in Step 5 above, then light the UEPO Service Identify LED by accessing the HMC
BPC-A ASM SIDE_A Service Processor Command Line (Refer to 'Power775 BPC FSP Command Line
Procedure' in Appendix A of this PDF and select SIDE_A on the Launch ASM Interface window) and enter the
following at the command prompt (IMPORTANT: DOUBLE-CHECK THE COMMAND IS TYPED IN
EXACTLY CORRECT BEFORE PRESSING ENTER BECAUSE EVEN A SINGLE INCORRECT CHARACTER
COULD RESULT IN SEVERE UNINTENDED SYSTEM DISRUPTION!!):
bpccmd -c 28aa0001ff01
Expect 00aa00 returned which means the command executed properly
and reported successful "UEPO Service Identify LED On" status.
If something different is returned, then contact the next level of support. For reference, the returned "rrssdd" format
hexadecimal characters can be translated as follows:
"rr" Return Code Definitions:
00 = Command executed properly
21 = Cage Not Present / Configured
22 = FRU Not Present / Configured.
27 = Location code error
4A = Error in sent command
4B = Invalid State
95 = BPCH LIC Detected Error
96 = Mail-boxing error
"ss" Sequence Number:
aa = Arbitrary and unimportant
"dd" Return Data Definitions
00 = UEPO Service Identify LED turned on successfully. It is OK to continue with the service procedure
7.
The UEPO Panel Identify Amber "!" LED should be blinking. Verify the rack MTMS (Machine Type Model Serial
number) are as expected. The rack level MTMS is located on the face of the UEPO Panel (see Figure 7 UEPO Panel
location on Front Door below). The Green circular lightning-bolt LED indicates that the UEPO loop is complete
and it should remain lit throughout the procedure.
Power775 UEPO Cable Service Procedure
PN: 41U8503, EC N44172
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