IBM i 830 Repair Manual page 71

Note: Stage 2 frames have a Rack Attention light on the frame control panel.
Yes No
↓
Go to step 3 of this procedure.
2. Go to "System or Rack Cannot Become Powered Off" in SY44-4934-00, FC 504x
Problem Analysis and Repair and Parts.
This ends the procedure.
3. Is the power off problem on the system unit?
No Yes
↓
Go to step 6 of this procedure.
4. Ensure that the SPCN cables that connect the frames are connected and seated
correctly at both ends. Does the frame power off, and is the Power On light
off?
No Yes
↓
This ends the procedure.
5. Go to step 9 on page 58 of this procedure.
6. Perform Powering Off the System (see "Powering On and Powering Off the
System and Logical Partitions" on page 922). Then return here and answer the
following question. Does the system unit or frame power off, and is the Power
On light off?
No Yes
↓
The system is not responding to normal power off procedures, which
could indicate a Licensed Internal Code problem. Ask your next level
of support for assistance.
This ends the procedure.
7. Is the frame that will not power off part of a shared I/O Tower loop?
Yes No
↓
Go to step 9 on page 58.
Power Problems
Rack Power Ready
Rack Attention
RV2A176-2
Chapter 1. Starting Problem Analysis
57