IBM iSeries 820 Hardware Problem Analysis And Isolation

v No: Continue with the next step.
v Yes: Exchange the PCC in the failing frame.
Note: See the Remove and replace procedures topic, or the FC 504x Problem Analysis and Repair
and Parts information (SY44-4934-00), or the Migrated Expansion Tower Problem Analysis, Repair
and Parts manual on the V5R1 Supplemental Manuals web site , depending on the secondary
frame you are working on.
This
ends the procedure.
6. Is the Unit Emergency Power Off (UEPO) switch on the secondary frame set to the On position?
v No: Continue with the next step.
v Yes: Go to step 9 (See page 45).
7. Perform the following:
a. Check with the customer to determine why the UEPO switch is set to the Off position.
b. Set the UEPO switch to the On position.
c. Power on the system. Do all of the frames on the system become powered on?
v Yes: Continue with the next step.
v No: Go to “Starting point for all problems” on page 2 for frames that do not become powered
on.
This
ends the procedure.
8. Continue the IPL (see Initial Program Load (IPL) Information in the iSeries
(TM)
Service Functions
).
Does the IPL complete successfully?
v Yes: You have corrected the problem. Select the mode on the control panel that the customer
wants.
This
ends the procedure.
v No: Go to “Starting point for all problems” on page 2.
This
ends the procedure.
9. Is the mainline ac power cable from J12 on the PCC to the customer’s ac power outlet connected
and seated correctly at both ends?
Note: J12 may not be present on machines in some countries.
v No: Continue with the next step.
v Yes: Go to step 11 (See page 45).
10.
Perform the following:
a. Power off the system (see Power on/off the system and logical partitions).
b. Set circuit breaker CB1 on the PCC to the O (off) position.
c. Connect the mainline ac power cable correctly at both ends.
Note: The connectors shown may not be present on machines in some countries.
d. Set circuit breaker CB1 to the | (on) position.
e. Power on the system (see Power on/off the system and logical partitions). Does the failing frame
become powered on?
v No: Continue with the next step.
v Yes: Go to step 18 (See page 47).
11.
Perform the following:
DANGER
Dangerous voltage being measured. (RSFTD005)
a. Power off the system.
Analyze hardware problems 45

IBM iSeries 820 Specifications

General

Brand	IBM
Model	iSeries 820
Category	Server
Language	English