PFW1542: I/O problem isolation procedure

PFW1542: I/O problem isolation procedure

This I/O problem-determination procedure isolates I/O card and I/O subsystem failures. When I/O problem isolation is complete, all cables and cards that are failing will have been replaced or reseated.

Notes:

To avoid damage to the system or subsystem components, unplug the power cords before removing or installing a part.
This procedure assumes that either:
- An optical drive is installed and connected to the integrated EIDE adapter, and an AIX^(R) diagnostic CD-ROM is available.
  OR
- AIX standalone diagnostics can be booted from a NIM server.
If a power-on password or privileged-access password is set, you are prompted to enter the password before the AIX diagnostic CD-ROM can load.
The term POST indicators refers to the device mnemonics that appear during the power-on self-test (POST).
The service processor might have been set by the user to monitor system operations and to attempt recoveries. You might want to disable these options while you diagnose and service the system. If these settings are disabled, make notes of their current settings so that they can be restored before the system is turned back over to the customer.
The following settings may be of interest.

Monitoring

(also called surveillance) From the ASMI menu, expand the System Configuration menu, then click on Monitoring. Disable both types of surveillance.

Auto power restart

(also called unattended start mode) From the ASMI menu, expand Power/Restart Control, then click on Auto Power Restart, and set it to disabled.

Wake on LAN^(R)

From the ASMI menu, expand Wake on LAN, and set it to disabled. Call Out From the ASMI menu, expand the Service Aids menu, then click on Call-Home/Call-In Setup. Set the call-home system port and the call-in system port to disabled.
If this is a pSeries^(R) system, verify that the system has not been set to boot to the SMS menus or to the open firmware prompt. From the ASMI menu, expand Power/Restart Control to view the menu, then click on Power On/Off System. The AIX/Linux partition mode boot should say "Continue to Operating System".

Use this procedure to locate defective FRUs not found by normal diagnostics. For this procedure, diagnostics are run on a minimally configured system. If a failure is detected on the minimally configured system, the remaining FRUs are exchanged one at a time until the failing FRU is identified. If a failure is not detected, FRUs are added back until the failure occurs. The failure is then isolated to the failing FRU.

Perform the following procedure:

PFW1542-1
1. Insure that the diagnostics and the operating system are shut down.
2. Turn off the power.
3. Select slow system boot speed on the power on/off system menu under the power/restart control menu on the ASMI.
4. Turn on the power.
5. Put the AIX diagnostic CD-ROM into the optical drive.
Does the optical drive appear to operate correctly?

NO

Go to Problems with loading and starting the operating system (AIX and Linux)

YES

Continue to PFW1542-2.
PFW1542-2
1. When the keyboard indicator is displayed (the word keyboard), if the system or partition gets that far in the IPL process, press the 5 key on the firmware console.
2. Enter the appropriate password if you are prompted to do so.
Is the Please define the System Console screen displayed?

NO

Continue toPFW1542-3.

YES

Go to PFW1542-4.
PFW1542-3
The system is unable to boot standalone AIX diagnostics. Check the service processor error log (using the ASMI) and the operator panel for additional error codes resulting from the slow boot that was performed in PFW1542-1.

Did the slow boot generate a different error code or partition firmware hang from the one that originally sent you to PFW1542?

NO

If you were sent here by an error code, and the error code did not change as the result of a slow boot, you have a processor subsystem problem. Go to PFW1548: Memory and processor subsystem problem isolation procedure. If you were sent here because the system is hanging on a partition firmware checkpoint, and the hang condition did not change as a result of the slow boot, go to PFW1542-5.

YES

Restore fast boot on the power on/off system menu from the ASMI. Look up the new error code in the reference code index and perform the listed actions.
PFW1542-4
The system stopped with the please define the system console prompt on the system console. Standalone diagnostics can be booted. Perform the following:
1. Follow the instructions on the screen to select the system console.
2. When the DIAGNOSTIC OPERATING INSTRUCTIONS screen is displayed, press Enter.
3. If the terminal type has not been defined, you must use the Initialize Terminal option on the FUNCTION SELECTION menu to initialize the AIX operating system environment before you can continue with the diagnostics. This is a separate operation from selecting the firmware console.
4. Select Advanced Diagnostic Routines.
5. When the DIAGNOSTIC MODE SELECTION menu displays, select System Verification to run diagnostics on all resources.
  Did running diagnostics produce a different symptom?
  
  NO
  
  Go to the following step.
  
  YES
  
  Return to the Problem Analysis procedures with the new symptom.
6. Record any devices missing from the list of all adapters and devices. Continue with this procedure. When you have fixed the problem, use this record to verify that all devices appear when you run system verification.
  Are there any devices missing from the list of all adapters and devices?
  
  NO
  
  Reinstall all remaining adapters, if any, and reconnect all devices. Return the system to its original configuration. Be sure to select fast boot on the power on/off system menu on the ASMI. Go to Verifying a repair.
  
  YES
  
  The boot attempts that follow will attempt to isolate any remaining I/O subsystem problems with missing devices. Ignore any codes that may display on the operator panel unless stated otherwise. Continue to PFW1542-5.
PFW1542-5
Examine RIO port 0 of the first RIO bus card (Un-P1-C8-T1) in the base system unit drawer.

Are there any I/O subsystems attached to this RIO card?

NO

Go to PFW1542-25.

YES

Continue to PFW1542-6.
PFW1542-6
There may be devices missing from one of more of the I/O subsystems, or one or more devices in the I/O subsystems may be causing the system or a partition to hang during IPL.

Attention: The 7311 Model D11 I/O subsystem, the 7311/D20 I/O subsystem or the 7314 Model G30 subsystem might be connected to this system.

The RIO and InfiniBand^(TM) ports on these subsystems are shown in the following table. Use this table to determine the physical location codes of the RIO or InfiniBand connectors that are mentioned in the remainder of this MAP.

Note:

Before continuing, check the cabling from the base system to the I/O subsystem(s) to insure that the system is cabled correctly. Refer to the cabling information for your I/O enclosure for valid configurations. Record the current cabling configuration and then continue with the following steps.
In the following steps, the term RIO cable means either RIO cable or InfiniBand cable.
1. Turn off the power. Record the location and machine type and model number, or feature number, of each I/O drawer or tower. In the following steps, use this information to determine the physical location codes of the RIO connectors that are referred to by their logical names. For example, if I/O subsystem #1 is a 7311-D20 drawer, RIO port 0 is Un-P1-C05-T2.
2. At the base system drawer, disconnect the cable connection at RIO port 0 (Un-P1-C8-T2).
3. At the other end of the RIO cable referred to in step 2 of PFW1542-6, disconnect the I/O subsystem port connector 0. The RIO cable that was connected to RIO port 0 in the base system should now be loose; remove it. Record the location of this I/O subsystem and call it "subsystem #1".
4. Examine the connection at the I/O port connector 1 of the I/O subsystem recorded in step 3 of PFW1542-6. If the RIO cable attached to I/O port connector 1 connects to the I/O port connector 0 of another I/O subsystem, record the location of the next I/O subsystem that is connected to I/O port 1 of subsystem #1, then go to step 9 of PFW1542-6.
5. This step is reserved.
6. At the base system, disconnect the cable connection at RIO port 1 (Un-P1-C8-T1) and reconnect it to RIO port 0 (Un-P1-C8-T2).
7. At the I/O subsystem recorded in step 3 of PFW1542-6, disconnect the I/O port connector 1 and reconnect to I/O port 0.
8. Verify that a single RIO cable connects base system RIO port 0 (Un-P1-C8-T2) to the I/O subsystem recorded in step 4 port 0. Go to step 21 of PFW1542-6.
9. Record the location of the next I/O subsystem and call it "subsystem #2". This is the I/O subsystem that is connected to I/O port 1 of subsystem #1.
10. Examine the connection at the I/O port 1 of subsystem #2 recorded in step 9 of PFW1542-6. If the RIO cable attached to I/O port 1 connects to the I/O port 0 of another I/O subsystem, record the location of the next I/O subsystem that is connected to I/O port 1 of subsystem #2 and call it "subsystem #3". Go to step 14 of PFW1542-6.
11. The RIO cable attached to the I/O port 1 of subsystem #2 is attached to port 1 (Un-P1-C8-T1) of the base system. At the base system, disconnect the cable connection at RIO port 1 (Un-P1-C8-T1) and reconnect it to RIO port 0 (Un-P1-C8-T2).
12. On subsystem #2, disconnect the cable from I/O port 1 and reconnect it to I/O port 0 of subsystem #1.
13. Verify that a single RIO cable connect base system RIO port 0 to one or two I/O subsystems. Go to step 21 of PFW1542-6.
14. Examine the connection at the I/O port 1 of subsystem #3 recorded in step 10 of PFW1542-6. If the RIO cable attached to I/O port 1 connects to the I/O port 0 of another I/O subsystem, record the location of the next I/O subsystem that is connected to I/O port 1 of the subsystem #3 and call it "subsystem #4". Go to step 18 of PFW1542-6.
15. The RIO cable attached to the I/O port 1 of subsystem #3 is attached to port 1 (Un-P1-C8-T1) of the base system. At the base system, disconnect the cable connection at RIO port 1 (Un-P1-C8-T1) and reconnect it to RIO port 0 (Un-P1-C8-T2).
16. On subsystem #3, disconnect the cable from I/O port 1 and reconnect it to I/O port 0 of subsystem #1.
17. Verify that a single RIO cable connects base system RIO port 0 to three I/O subsystems. Go to step 21 of PFW1542-6.
18. The RIO cable attached to the I/O port 1 of subsystem #4 is attached to port 1 (Un-P1-C8-T1) of the base system. At the base system, disconnect the cable connection at RIO port 1 (Un-P1-C8-T1) and reconnect it to RIO port 0 (Un-P1-C8-T2).
19. On subsystem #4, disconnect the cable from I/O port 1 and reconnect it to I/O port 0 of subsystem #1.
20. Verify that a single RIO cable connects base system RIO port 0 to four I/O subsystems. Continue to step 21 of PFW1542-6.
21. Turn on the power to boot the standalone AIX diagnostics from CD-ROM.
22. If the Please define the system console screen is displayed, follow the directions to select the system console.
23. Use the Display Configuration and Resource List option to list all of the attached devices and adapters.
24. Verify that all adapters and the attached devices are listed.
Did the Please define the system console screen display and are all adapters and attached devices listed?

NO

Go to PFW1542-7.

YES

The RIO cable that was removed in step 3 above is defective. Replace this RIO cable.
- If four I/O subsystems are chained to RIO port 0 (Un-P1-C8-T2) of the base system, connect the new RIO cable from subsystem #4 I/O port 1 to base system RIO port 1 (Un-P1-C8-T1).
- If three I/O subsystems are chained to RIO port 0 (Un-P1-C8-T2) of the base system, connect the new RIO cable from subsystem #3 I/O port 1 to base system RIO port 1 (Un-P1-C8-T1).
- If two I/O subsystems are chained to RIO port 0 (Un-P1-C8-T2) of the base system, connect the new RIO cable from subsystem #2 I/O port 1 to base system RIO port 1 (Un-P1-C8-T1).
- If one I/O subsystem is chained to RIO port 0 (Un-P1-C8-T2) of the base system, connect the new RIO cable from subsystem #1 I/O port 1 to base system RIO port 1 (Un-P1-C8-T1).
Restore the system back to its original configuration. Go to Verifying a repair.
PFW1542-7
The I/O attached to the RIO ports on the base system planar will now be isolated. Power down the system. Disconnect the cable connection at RIO port 0 (Un-P1-C8-T2) of the base system.
PFW1542-8
1. Turn on the power to boot the standalone diagnostic CD-ROM.
2. If the Please define the system console screen is displayed, follow the directions to select the system console.
3. Use the Display Configuration and Resource List option to list all of the attached devices and adapters.
4. Check that all adapters and attached devices in the base system are listed.
If the Please define the system console screen was not displayed or all adapters and attached devices are not listed, the problem is in the base system.

Was the Please define the system console screen displayed and were all adapters and attached devices listed?

NO

Go to PFW1542-25.

YES

Go to PFW1542-21.
PFW1542-9
For subsystem #1: Are there any adapters in the I/O subsystem?

NO

Go to PFW1542-10.

YES

Go to PFW1542-13.
PFW1542-10
For subsystem #2: Are there any adapters in the I/O subsystem?

NO

Go to PFW1542-11.

YES

Go to PFW1542-14.
PFW1542-11
For subsystem #3: Are there any adapters in the I/O subsystem?

NO

Go to PFW1542-12.

YES

Go to PFW1542-15.
PFW1542-12
For subsystem #4: Are there any adapters in the I/O subsystem?

NO

Go to PFW1542-19.

YES

Go to PFW1542-16.
PFW1542-13
1. If it is not already off, turn off the power.
2. Label and record the locations of any cables attached to the adapters, then disconnect the cables.
3. Record the slot numbers of the adapters.
4. Remove all adapters from the I/O subsystem.
5. Turn on the power to boot the standalone diagnostic CD-ROM.
6. If the ASCII terminal displays Enter 0 to select this console, press the 0 (zero) key on the ASCII terminal's keyboard.
7. If the Please select the system console screen is displayed, follow the directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Check that all adapters and attached devices are listed.
Was the Please define the system console screen displayed and were all adapters and attached devices listed?

NO

Go to PFW1542-10.

YES

Go to PFW1542-17.
PFW1542-14
1. If it is not already off, turn off the power.
2. Label and record the locations of any cables attached to the adapters, then disconnect the cables.
3. Record the slot numbers of the adapters.
4. Remove all adapters from the I/O subsystem.
5. Turn on the power to boot the standalone diagnostic CD-ROM.
6. If the ASCII terminal displays Enter 0 to select this console, press the 0 (zero) key on the ASCII terminal's keyboard.
7. If the Please select the system console screen is displayed, follow the directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Check that all adapters and attached devices are listed.
Was the Please define the system console screen displayed and were all adapters and attached devices listed?

NO

Go to PFW1542-11.

YES

Go to PFW1542-17.
PFW1542-15
1. If it is not already off, turn off the power.
2. Label and record the locations of any cables attached to the adapters, then disconnect the cables.
3. Record the slot numbers of the adapters.
4. Remove all adapters from the I/O subsystem.
5. Turn on the power to boot the standalone diagnostic CD-ROM.
6. If the ASCII terminal displays Enter 0 to select this console, press the 0 (zero) key on the ASCII terminal's keyboard.
7. If the Please select the system console screen is displayed, follow the directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Check that all adapters and attached devices are listed.
Was the Please define the system console screen displayed and were all adapters and attached devices listed?

NO

Go to PFW1542-12.

YES

Go to PFW1542-17.
PFW1542-16
1. If it is not already off, turn off the power.
2. Label and record the locations of any cables attached to the adapters, then disconnect the cables.
3. Record the slot numbers of the adapters.
4. Remove all adapters from the I/O subsystem.
5. Turn on the power to boot the standalone diagnostic CD-ROM.
6. If the ASCII terminal displays Enter 0 to select this console, press the 0 (zero) key on the ASCII terminal's keyboard.
7. If the Please define the system console screen is displayed, follow the directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Check that all adapters and attached devices are listed.
Was the Please define the system console screen displayed and were all adapters and attached devices listed?

NO

Go to PFW1542-19.

YES

Go to PFW1542-17.
PFW1542-17
If the Please define the system console screen was not displayed and all adapters and attached devices were not listed, the problem is with one of the adapter cards or attached devices that was removed or disconnected from the I/O subsystem.
1. Turn off the power.
2. Reinstall one adapter and device that was removed. Use the original adapter cards in their original slots when reinstalling adapters.
3. Turn on the power to boot the standalone diagnostic CD-ROM.
4. If the Please define the system console screen is displayed, follow the directions to select the system console.
5. Use the Display Configuration and Resource List option to list all adapters and attached devices.
6. Check that all adapters and attached devices are listed.
Was the Please define the system console screen displayed and were all adapters and attached devices listed?

NO

Go to PFW1542-18.

YES

Reinstall the next adapter and device and return to the beginning of this step. Repeat this process until an adapter or device causes the Please define the System Console screen to not display or all attached devices and adapters to not be listed.
After installing all of the adapters and the Please define the System Console screen does display and all attached devices and adapters are listed, return the system to its original configuration. Go to Verifying a repair.
PFW1542-18
Replace the adapter you just installed with a new adapter and retry booting AIX standalone diagnostics from CD-ROM.
1. If the Please define the system console screen is displayed, follow the directions to select the system console.
2. Use the Display Configuration and Resource List option to list all adapters and attached devices.
3. Check that all adapters and attached devices are listed.
Was the Please define the system console screen displayed and were all adapters and attached devices listed?

NO

The I/O subsystem backplane is defective. Replace the I/O subsystem backplane. In all 4 subsystem types, the I/O subsystem backplane is Un-CB1. Then go to PFW1542-20.

YES

The adapter was defective. Go to PFW1542-20.
PFW1542-19
1. Turn off the power.
2. Disconnect the I/O subsystem power cables.
3. Replace the following parts, one at a time, if present, in the sequence listed:
  1. I/O subsystem #1 backplane
  2. I/O subsystem #2 backplane
  3. I/O subsystem #3 backplane
  4. I/O subsystem #4 backplane
  5. The RIO interface in the base system to which the RIO cables are presently attached.
4. Reconnect the I/O subsystem power cables.
5. Turn on the power.
6. Boot standalone AIX diagnostics from CD.
7. If the Please define the System Console screen is displayed, follow directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Check that all attached devices and adapters are listed.
Did the Please define the System Console screen display and are all attached devices and adapters listed?

NO

Replace the next part in the list and return to the beginning of this step. Repeat this process until a part causes the Please define the System Console screen to be displayed and all adapters and attached devices to be listed. If you have replaced all the items listed above and the Please define the System Console screen does not display or all attached devices and adapters are not listed, check all external devices and cabling. If you do not find a problem, contact your next level of support for assistance.

YES

Go to PFW1542-20.
PFW1542-20
1. Turn off the power.
2. The item just replaced fixed the problem.
3. If a display adapter with keyboard and mouse were installed, reinstall the display adapter card, keyboard, and mouse.
4. Reconnect the tape drive (if previously installed) to the internal SCSI bus cable.
5. Plug in all adapters that were previously removed but not reinstalled.
6. Reconnect the I/O subsystem power cables that were previously disconnected.
Return the system to its original condition. Go to Go to Verifying a repair.
PFW1542-21
1. Turn off the power.
2. At the base system, reconnect the cable connection at RIO port 0 (Un-P1-C8-T2) recorded in PFW1542-7.
3. At the base system, reconnect the cable connection at RIO port 1(Un-P1-C8-T1) recorded in PFW1542-7.
4. Reconnect the power cables to the I/O subsystems that were found attached to the base system RIO ports mentioned in step 2 and step 3 of PFW1542-21. All I/O subsystems that were attached to the base system RIO port 0 and RIO port 1 should now be reconnected to the base system.
5. Make sure the I/O subsystem(s) are cabled correctly. See the cabling information for your I/O subsystem.
6. Turn on the power to boot standalone AIX diagnostics from CD-ROM.
7. If the Please define the System Console screen is displayed, follow the directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Check that all adapters and attached devices are listed.
Did the Please define the System Console screen display and are all attached devices and adapters listed?

NO

Go to PFW1542-9 to isolate a problem in an I/O subsystem attached to the base system RIO bus on the system backplane.

YES

Go to PFW1542-22.
PFW1542-22
Is there a RIO expansion card plugged into Un-P1-C9 in the base system, and if so, is there at least one I/O subsystem attached to it?

NO

Go to PFW1542-25.

YES

Continue to PFW1542-23.
PFW1542-23
1. Turn off the power.
2. At the base system, reconnect the cable connection at RIO port 0 on the second RIO expansion card (Un-P1-C9-T2) recorded in PFW1542-7.
3. At the base system, reconnect the cable connection at RIO port 1 on the RIO expansion card (Un-P1-C9-T1) recorded in PFW1542-7.
4. Reconnect the power cables to the I/O subsystems that were attached to the base system's RIO ports mentioned in substeps 2 and 3 in this step. All I/O subsystems that were attached to RIO port 0 on the RIO expansion card (Un-P1-C9-T2) and RIO port 1 on the RIO expansion card (Un-P1-C9-T1) in the base system should now be reconnected to the system.
5. Make sure that the I/O subsystem(s) are cabled correctly as shown in the cabling information for your I/O expansion unit.
6. Turn on the power to boot the standalone AIX diagnostic CD-ROM.
7. If the Please define the system console screen is displayed, follow the directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Verify that all adapters and attached devices are listed.
Did the Please define the system console screen display and are all adapters and attached devices listed?

NO

Go to PFW1542-24 to isolate the problems in the I/O subsystems that are attached to the second RIO expansion card in the base system.

YES

Go to PFW1542-25.
PFW1542-24
At the base system, reconnect the second I/O subsystem to the RIO ports on the base system's expansion card at Un-P1-C9-T1 and Un-P1-C9-T2.

The RIO ports on these subsystems are shown in the following table. Use this table to determine the physical location codes of the RIO connectors that are mentioned in the remainder of this MAP.

Note:

Before continuing, check the cabling from the base system to the I/O subsystem(s) to ensure that the system is cabled correctly. Record the current cabling configuration and then continue with the following steps.
1. Turn off the power.
2. Record the location and machine type and model number, or feature number, of each I/O drawer or tower. In the following steps, use this information to determine the physical location codes of the RIO connectors that are referred to by their logical names. For example, if I/O subsystem #1 is a 7311/D20 drawer, RIO port 0 is Un-P1-C05-00.
3. At the base system, disconnect the cable connection at RIO port 0 (Un-P1-C8-T2).
4. At the other end of the RIO cable referred to in step 2 of PFW1542-24, disconnect the I/O subsystem port connector 0. The RIO cable that was connected to RIO port 0 on the expansion card should now be loose; remove it. Record the location of this I/O subsystem and call it "subsystem #1".
5. Examine the connection at the I/O port connector 1 of the I/O subsystem recorded in step 3 of PFW1542-24. If the RIO cable attached to I/O port connector 1 connects to the I/O port connector 0 of another I/O subsystem, record the location of the next I/O subsystem that is connected to I/O port 1 of subsystem #1, then go to step 9 of PFW1542-24.
6. This step is reserved.
7. At the base system, disconnect the cable connection at RIO port 1 on the RIO expansion card (Un-P1-C9-T1) and reconnect it to RIO port 0 on the RIO expansion card (Un-P1-C9-T2).
8. At the I/O subsystem recorded in step 3 of PFW1542-24, disconnect the I/O port connector 1 and reconnect to I/O port 0.
9. Verify that a single RIO cable connects base system RIO port 0 on the RIO expansion card (Un-P1-C9-T1) to the I/O subsystem recorded in step 4 of PFW1542-24 port 0. Go to step 21 of PFW1542-24.
10. Record the location of the next I/O subsystem and call it "subsystem #2". This is the I/O subsystem that is connected to I/O port 1 of subsystem #1.
11. Examine the connection at the I/O port 1 of subsystem #2 recorded in step 9 of PFW1542-24. If the RIO cable attached to I/O port 1 connects to the I/O port 0 of another I/O subsystem, record the location of the next I/O subsystem that is connected to I/O port 1 of subsystem #2 and call it "subsystem #3". Go to step 14 of PFW1542-24.
12. The RIO cable attached to the I/O port 1 of subsystem #2 is attached to port 1 (Un-P1-C9-T1) of the base system. At the base system, disconnect the cable connection at RIO port 1 on the RIO expansion card (Un-P1-C9-T1) and reconnect it to RIO port 0 on the RIO expansion card (Un-P1-C9-T1).
13. On subsystem #2, disconnect the cable from I/O port 1 and reconnect it to I/O port 0 of subsystem #1.
14. Verify that a single RIO cable connect base system RIO port 0 to one or two I/O subsystems. Go to step 21 of PFW1542-24.
15. Examine the connection at the I/O port 1 of subsystem #3 recorded in step 10 of PFW1542-24. If the RIO cable attached to I/O port 1 connects to the I/O port 0 of another I/O subsystem, record the location of the next I/O subsystem that is connected to I/O port 1 of the subsystem #3 and call it "subsystem #4". Go to step 18 of PFW1542-24.
16. The RIO cable attached to the I/O port 1 of subsystem #3 is attached to RIO port 1 on the RIO expansion card (Un-P1-C9-T1). At the base system, disconnect the cable connection at RIO port 1 on the RIO expansion card (Un-P1-C9-T1) and reconnect it to RIO port 0 on the RIO expansion card (Un-P1-C9-T1).
17. On subsystem #3, disconnect the cable from I/O port 1 and reconnect it to I/O port 0 of subsystem #1.
18. Verify that a single RIO cable connects base system RIO port 0 to three I/O subsystems. Go to step 21 of PFW1542-24.
19. The RIO cable attached to the I/O port 1 of subsystem #4 is attached to port 1 (Un-P1-C9-T1) on the RIO expansion card. On the RIO expansion card, disconnect the cable connection at RIO port 1 (Un-P1-C9-T1) and reconnect it to RIO port 0 (Un-P1-C9-T2).
20. On subsystem #4, disconnect the cable from I/O port 1 and reconnect it to I/O port 0 of subsystem #1.
21. Verify that a single RIO cable connects base system RIO port 0 to four I/O subsystems. Continue to step 22 of PFW1542-24.
22. Turn on the power to boot the standalone AIX diagnostics from CD-ROM.
23. If the Please define the system console screen is displayed, follow the directions to select the system console.
24. Use the Display Configuration and Resource List option to list all of the attached devices and adapters.
25. Verify that all adapters and the attached devices are listed.
Did the Please define the system console screen display and are all adapters and attached devices listed?

NO

Go to PFW1542-9 to further isolate a problem in the I/O subsystem(s) attached to the RIO expansion card (Un-P1-C8).

YES

The RIO cable that was removed in step 3 of PFW1542-24 is defective. Replace this RIO cable.
- If four I/O subsystems are chained to RIO port 0 (Un-P1-C9-T1) of the base system, connect the new RIO cable from subsystem #4 I/O port 1 to RIO port 1 on the RIO expansion card (Un-P1-C9-T1).
- If three I/O subsystems are chained to RIO port 0 (Un-P1-C9-T1) of the base system, connect the new RIO cable from subsystem #3 I/O port 1 to RIO port 1 on the RIO expansion card (Un-P1-C9-T1).
- If two I/O subsystems are chained to RIO port 0 (Un-P1-C9-T1) of the base system, connect the new RIO cable from subsystem #2 I/O port 1 to RIO port 1 on the RIO expansion card (Un-P1-C9-T1).
- If one I/O subsystem is chained to RIO port 0 (Un-P1-C9-T1) of the base system, connect the new RIO cable from subsystem #1 I/O port 1 to RIO port 1 on the RIO expansion card (Un-P1-C9-T1).
Restore the system back to its original configuration. Go to Verifying a repair.
PFW1542-25
Are there any adapters in slots 1, 2, 3, 4, 5, or 6 in the base system?

NO

Go to PFW1542-26.

YES

Go to PFW1542-28.
PFW1542-26
Replace the system backplane, Un-P1. Continue to PFW1542-27.
PFW1542-27
1. Boot standalone AIX diagnostics from CD.
2. If the Please define the System Console screen is displayed, follow directions to select the system console.
3. Use the Display Configuration and Resource List to list all adapters and attached devices.
4. Check that all adapters and attached devices are listed.
Did the Please define the System Console screen display and are all attached devices and adapters listed?

NO

Go to PFW1542-31.

YES

Go to PFW1542-20.
PFW1542-28
1. If it is not already off, turn off the power.
2. Label and record the location of any cables attached to the adapters.
3. Record the slot number of the adapters.
4. Remove all adapters from slots 1, 2, 3, 4, 5, and 6 in the base system that are not attached to the boot device.
5. Turn on the power to boot standalone AIX diagnostics from CD-ROM.
6. If the ASCII terminal displays Enter 0 to select this console, press the 0 key on the ASCII terminal's keyboard.
7. If the Please define the System Console screen is displayed, follow directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Check that all adapters and attached devices are listed.
Did the Please define the System Console screen display and are all attached devices and adapters listed?

NO

Go to PFW1542-26.

YES

Continue to PFW1542-29.
PFW1542-29
If the Please define the System Console screen does display and all adapters and attached devices are listed, the problem is with one of the adapter cards or devices that was removed or disconnected from the base system.
1. Turn off the power.
2. Reinstall one adapter and device that was removed. Use the original adapter cards in their original slots when reinstalling adapters.
3. Turn on the power to boot standalone AIX diagnostics from the optical drive.
4. If the Please define the System Console screen is displayed, follow the directions to select the system console.
5. Use the Display Configuration and Resource List to list all adapters and attached devices.
6. Check that all adapters and attached devices are listed.
Did the Please define the System Console screen display and are all attached devices and adapters listed?

NO

Continue to PFW1542-30.

YES

Return to the beginning of this step to continue reinstalling adapters and devices.
PFW1542-30
Replace the adapter you just installed with a new adapter and retry the boot to standalone AIX diagnostics from CD-ROM.
1. If the Please Define the System Console screen is displayed, follow directions to select the system console.
2. Use the Display Configuration and Resource List option to list all adapters and attached devices.
3. Check that all adapters and attached devices are listed.
Did the Please define the System Console screen display and are all attached devices and adapters listed?

NO

Go to PFW1542-26.

YES

The adapter you just replaced was defective. Go to PFW1542-20.
PFW1542-31
1. Turn off the power.
2. Disconnect the base system power cables.
3. Replace the following parts, one at a time, in the sequence listed:
  1. Optical drive
  2. Removable media backplane and cage assembly
  3. Disk drive backplane and cage assembly
  4. I/O backplane, location Un-P1
  5. Service processor
4. Reconnect the base system power cables.
5. Turn on the power.
6. Boot standalone AIX diagnostics from CD.
7. If the Please define the System Console screen is displayed, follow directions to select the system console.
8. Use the Display Configuration and Resource List option to list all adapters and attached devices.
9. Check that all adapters and attached devices are listed.
Did the Please define the System Console screen display and are all adapters and attached devices listed?

NO

Replace the next part in the list and return to the beginning of this step. Repeat this process until a part causes the Please define the System Console screen to be displayed and all adapters and attached devices to be listed. If you have replaced all the items listed above and the Please define the System Console screen does not display or all adapters and attached devices are not listed, check all external devices and cabling. If you do not find a problem, contact your next level of support for assistance.

YES

Go to PFW1542-20.