Replacing the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D system backplane
Learn how to replace the system backplane that is part of a service action.
To complete this procedure, you must have already completed the removal procedure. For the removal procedure instructions, see Removing the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D system backplane.
If your system is managed by the Hardware Management Console (HMC), use the HMC to replace the system backplane. For instructions, see Replacing a part by using the Hardware Management Console.
If your system is managed by the IBM® Systems Director Management Console (SDMC), use the SDMC to replace the system backplane. For instructions, see Replacing a part by using the Systems Director Management Console.
If you do not have an HMC or an SDMC, complete the following steps to replace the system backplane:
- Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic discharge from damaging your hardware.
- When using a wrist strap, follow all electrical safety procedures. A wrist strap is for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.
- If you do not have a wrist strap, prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted metal surface of the system for a minimum of 5 seconds.
- Replace the system backplane. Note: Use care when you replace the system backplane.
- Carefully grasp the replacement system backplane by both of the heat-sink load arms (A). See Figure 1.
- Lower the system backplane at an angle toward the front of the system chassis.
- Lower the rear of the system backplane, and then slide it toward the rear of the system until the connectors clear the openings in the chassis (see inset).
- Lower the front of the system backplane onto the alignment
pins (B). Figure 1. Installing the system backplane in the 8202-E4B or 8205-E6B

- Tighten the four screws (C) that
secure the system backplane to the system chassis. See Figure 2. Figure 2. Installing the system backplane

- Reconnect all of the Ethernet cables that were previously removed.
- Install the metal guide bracket for the voltage regulator
module.
- Align the three holes on the bracket to the three holes along the system sidewall.
- Tighten the three screws.
- Replace the system processor module. For instructions, see Replacing the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D system processor modules.
- Replace the power interlock switch. For instructions, see Replacing the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D power interlock switch with the power off.
- Replace the fan cage:
- Lower the fan cage into position ensuring that alignment groove (A) and alignment pin (B) are correctly aligned. See Figure 3.
- Tighten the two screws (D) that secure the fan cage to the system chassis.
- Tighten the screws (C) that secure the fan cage.
Figure 3. Installing the fan cage
- Connect the front fan cable. See Figure 4. Figure 4. Connecting the front fan cable

- Replace the dual inline memory module (DIMM) cage:
- Lower the DIMM cage into position.
- Insert and tighten the four screws that secure the DIMM cage (View A). See Figure 5.
Figure 5. Replacing the DIMM cage
- Replace the plastic voltage regulator module guide (A).
See Figure 6 or Figure 7.
- Lower the plastic guide into position.
- Insert and tighten the three screws that secure the guide.
- Replace the disk-drive cage shield (B).
- Lower the disk-drive cage shield into position.
- Insert and tighten the two screws that secure the disk-drive cage shield.
Figure 6. Replacing the disk-drive cage shield in the 8202-E4B or 8205-E6B
Figure 7. Replacing the disk-drive cage shield in the 8202-E4C, 8202-E4D, 8205-E6C, or 8205-E6D
- Install the SAS tape drive, if present.
- Install the USB tape drive, if present.
- Connect SAS cable, if present.
- Replace the PCI riser (optional):
- Lower the PCI riser into position.
- Press the PCI riser latches (A) down until they lock into place. See Figure 8.
- Tighten the two thumbscrews (D).
Figure 8. Replacing the PCI riser
- Replace the PCI-riser air divider.
- Lower the PCI-riser air divider and press it into place. See Figure 9.
Figure 9. Replacing the PCI riser air divider
- Replace the vital product data card. For instructions, see Replacing the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D vital product data card.
- Replace the disk drive cage:
- With the disk drive latches extended, push the disk drive cage into the system. See Figure 10.
- Push the disk drive latches toward system until they lock.
Figure 10. Replacing the disk drive cage
- Connect the internal cables to the backplane and replace
the SPCN cable to the rear of the chassis. See Figure 11. Figure 11. Connecting the internal cables

- Replace the power supplies. For instructions, see Replacing the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D power supply with the power turned off or Replacing the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D power supply with the power turned on.
- Replace the fans. For instructions, see Fans and fan cages for the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D.
- Replace the memory riser. For instructions, see Installing memory risers for the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D.
- Replace all the voltage regulator modules. For instructions, see Replacing the 8202-E4B or 8205-E6B processor voltage regulator module or Replacing the 8202-E4C, 8202-E4D, 8205-E6C, or 8205-E6D processor voltage regulator module.
- Replace the RAID card P1-C13, if present, in the 8202-E4B or 8205-E6B only. Note: Before replacing the RAID card, pull tape drive out a little bit to give access to install the RAID card. Then push the tape drive back in place after.
Replace the RAID card P1-C14, if present.
Replace the RAID card P1-C19, if present.
- Replace the Host Ethernet Adapter, in the 8202-E4B or 8205-E6B. For instructions, see Replacing the 8202-E4B or 8205-E6B Host Ethernet Adapter with the power off.
- Replace the GX adapters. For instructions, see Replacing GX adapters in the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D.
- Replace the PCI adapters. For instructions, see Replacing a PCI adapter in the 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D with the power off.
- Replace the service access cover:
- For a rack-mounted system, see Installing the service access cover on a rack-mounted 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D system.
- For a stand-alone system, see Installing the service access cover on a stand-alone 8202-E4B, 8202-E4C, 8202-E4D, or 8205-E6B system.
- Replace the front cover:
- For a rack-mounted system, see Installing the front cover and front door on a rack-mounted 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D system.
- For a stand-alone system, see Installing the front cover and front door on a stand-alone 8202-E4B, 8202-E4C, 8202-E4D, or 8205-E6B system.
- Place the system in the operating position. For instructions, see Placing the rack-mounted 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D system into the operating position.
- Reconnect all power cords, Ethernet, and signal cables.
- Restore service processor settings. Is your system managed by a management console?
Yes
No
Go to next step.
Go to step 33.
- Restore network connectivity.
The service processor must connect to the network to be accessible from the management console.
How will the IP address of the service processor be managed?Obtain an IP address automatically from a Dynamic Host Configuration Protocol (DHCP) server
Go to next step.
Configure a static IP address
Go to step 33
- Restore service processor settings. Enable network access to the service processor. If the network connection uses the DHCP to establish an IP address, and uses the Management consoles as the DHCP server, no additional configuration is necessary to enable network access to the service processor. Perform the following steps:
- Ensure that the service processor is connected to the existing service network by verifying that the management console cable is connected to the management console port on the system backplane.
- If not already connected, connect all system power cables by plugging
them into power outlets.Note: Do not start the system at this time.
- Restore service processor settings. The Advanced System Management Interface (ASMI) is the interface to the service processor that is required to perform general and administrator-level service tasks, such as reading service processor error logs, reading vital product data, setting up the service processor, controlling the system power, and setting service processor network ports. The ASMI may also be referred to as the service processor menus. The ASMI can be accessed through https. Perform the following steps:
- The control panel can be used in manual mode to display the service processor's IP addresses. Refer to service functions to get control panel documentation in that case.
- Connect a client with a web browser directly to the service processor
network ports you previously noted. It could be something like the
following URLs:
- https://169.254.2.147
- https://169.254.3.147
Note: In some cases, the IP addresses might be different. For more information, see Function 30. - If not already connected, connect all system power cables by plugging them into power outlets. Note: Do not start the system at this time.
- Log on to the ASMI with the admin User ID and admin default Password.
- Change the admin user ID Password and the general user ID Password when prompted.
- To configure network access perform the following steps:
- Click Network Configuration under the Network Services node.
- On the right pane, configure eth0 and eth1 network interfaces, select Static for the Type of IP Address field, and set and a Host name, an IP address, a Subnet mask.
- Restore system processor settings.
With the network connection now configured to use static IP address assignments, try to access the service processor network ports.
Can you access the service network?Yes
No
Go to next step.
Go to step 39
- Access the ASMI.
The ASMI is the interface to the service processor that is required to perform general and administrator-level service tasks, such as reading service processor error logs, reading vital product data, setting up the service processor, and controlling the system power. The ASMI might also be referred to as the service processor menus. To access the ASMI, see Accessing the Advanced System Management Interface. After you have accessed the ASMI, continue with the next step.
- Set System Enclosure Type and Feature Code.
The enclosure serial number is a seven-digit number printed on a bar-coded label on the system unit. When the system backplane is replaced, the seven-digit enclosure serial number and feature code number needs to be manually inputted and stored in the new system backplane by using the ASMI.
Note: The feature code number for 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D is 78AA-001.Note: To perform this operation, your authority level must be Authorized Service Provider (ID: celogin).To input the enclosure serial number and feature code, complete the following steps:- On the ASMI Welcome pane, specify your user ID and password, and click Log in.
- In the navigation area, expand System Configuration > Program Vital Product Data.
- Select System Enclosures. In the right pane, the current system enclosures are displayed.
- On the system being serviced, record the enclosure serial number and feature code printed on the bar-coded label on the system unit.
- Enter the last 7 characters of the enclosure serial number in the Enclosure serial number field.
- Enter the feature code number, including the dash (-), in the Feature Code/Sequence Number field.
- Click Save settings to update and save the enclosure serial number and the feature code.
- Go to step 41.
- Restore service processor settings. If the network connection uses DHCP to establish an IP address, but does not use a management console as the DHCP server, complete the following steps:
- Complete any network configuration necessary to allow the DHCP server to recognize and assign an IP address to the service processor.
- Ensure that the service processor is connected to the existing service network by verifying that the network cable is connected to the network port.
- If not already connected, connect all system power cables by plugging
them into power outlets. Note: Do not start the system at this time.
Can you access the service network?Yes
No
Go to 35
Go to next step.
- Restore service processor settings. If you are still not able to access the service network, reset the service processor by pressing the pin-hole switch (E) on the operator panel. See Figure 12.Figure 12. Pin-hole switch on the operator information panel

- Got to step 31.
- Restore service processor settings. Change the password of the admin user ID when prompted by performing the following steps:
- In the navigation area of the ASMI, expand Login Profile.
- Select Change Password under Login Profile.
- Specify the required information, and click Continue.
Note: Passwords can be any combination of up to 64 alphanumeric characters. The default password for the admin User ID is admin. After your initial login to the ASMI, the admin password must be changed.As a security measure, you are required to enter the password for your user ID in the Current password for current user field. - Restore service processor settings. Set the system name. The system name can be changed to any valid ASCII string. It does not have to follow the machine type_model_serial number format. To change the system name, complete the following steps:
- In the navigation area of the ASMI, expand System Configuration.
- Select System Name under System Configuration.
- Enter the desired system name.
- Click Save settings to update the system name to the new value.
- Restore service processor settings. To set the time-of-day, complete the following steps:
- In the navigation area of the ASMI, expand System Configuration.
- Select Time of Day under System Configuration.
- If the system is powered off, the right pane displays a form that shows the current date (month, day, and year) and time (hours, minutes, and seconds).
- Change the date, the time, or both, and click Save settings.
- Restore service processor settings.
Verify that the server firmware level is the same as the level recorded prior to replacing the system backplane. If the level is different, the firmware may have to be reinstalled. For information on installing firmware, see Getting firmware fixes.
- Restore the server Host Ethernet Adapter (HEA) device settings.
- For HMC:
- Expand the Systems Management folder in the navigation tree pane.
- Double-click the Servers folder.
- Select a server in the central panel.
- From the Tasks menu, click Hardware Information > Adapters > Host Ethernet. The Host Ethernet Adapters window opens.
- Select the required physical port and click Configure. The HEA Physical Port Configuration window opens.
- Enter the value in the Pending Port Group Multi-Core Scaling value field and click OK.
- For SDMC:
- Click the Resources tab, and then click Hosts.
- Select a server in the right pane.
- From the Actions menu, click Hardware Information > Adapters > Host Ethernet. The Host Ethernet Adapters window opens.
- Select the required physical port and click Configure. The HEA Physical Port Configuration window opens.
- Enter the value in the Pending Port Group Multi-Core Scaling value field and click OK.
- For HMC:
- Restore service processor settings. Reenter any of the following settings that were previously changed through the ASMI, unless you want to use the default settings.
- System name setting
- System Power Control settings
- System Service Aids settings
- System Configuration settings
- Network Services settings
- Performance Options settings
- Login Profile settings
- Boot List settings
- Host Ethernet Adapter settings
- Restore the service processor settings:
- Reset any service processor settings that you may have set using operating system commands. You recorded these settings at the beginning of this procedure.
- If you choose to reset the Management consoles Access
password, perform the following:To change the HMC access password, select one of the following methods:
- From the HMC GUI (preferred method):
- Expand the Systems Management folder in the navigation tree pane.
- Double-click the Servers folder.
- Select a server in the central panel.
- Under the Operations folder, select Change Password.
- Provide the desired information and click OK.
- From the HMC command line, type:
/usr/hmcrbin/chsyspwd -m managedsystem -t access --passwd --newpasswd newpassword
where:- The value for managedsystem is the new service processor's managed system name.
- No value for --passwd is entered thereby allowing authentication.
- The value for newpasswd is the newpassword value.
To change the SDMC access password, complete the following steps:- Click the Resources tab, and then click Hosts.
- Select a server in the right pane.
- From the Actions menu, click Operations > Change Password.
- Provide the desired information and click OK.
- From the HMC GUI (preferred method):
- Recover partition data on the service processor.
Profile data stored in the managed server has been cleared or corrupted.
To recover profile data, using the HMC, complete the following steps:- Expand the Systems Management folder in the navigation tree pane.
- Double-click the Servers folder.
- Use the check box to select a server, in the central panel.
- In the Configuration folder if you have the Manage Partition Data folder, select Restore.
To recover profile data, using the SDMC, complete the following steps:- Click the Resources tab, and then click Hosts.
- Select a server in the right pane.
- From the Actions menu, click System Configuration > Manage Partition Data > Restore.
- Select the desired restore option and click OK.
- Update vital product data. If your system is running IBM i and is not managed by the management consoles, you must update the load source after replacing the system backplane. To update the load source without using the management consoles, do the following steps:
- Insert the I_BASE_01 Licensed Internal Code optical media into the device that is defined for the system and access it to perform an initial program load (IPL).
- On the control panel change the IPL source to D.
- On the control panel press the Power on button to perform an initial program load
(IPL).Note: This IPL can take several minutes.
- After the Select a Language Group display is shown, press Enter
to select the default language feature 2924 (English). Note: To change the language feature, type the language feature that appears on the media that contains the operating system, and then press Enter.Confirm the language feature by pressing Enter.
- From the Install Licensed Internal Code display, select option
2 (Work with Dedicated Service Tools (DST)) and press Enter.
Use the Dedicated Service Tools to make sure the disk units, including the load source, are reporting correctly and that there are no errors that might prevent the IPL from disk. When all errors have been resolved and the load source disk is reporting correctly, continue with the next step.
- From the Work with dedicated service tools (DST) display, select option 2 (Work with disk units) and press Enter.
- Select option 8 (Update system vital product data) to identify the location of the load source disk unit. Press Enter. The Update System Vital Product Data display is shown.
- Press Enter to confirm that you want the vital product data to be written.
- Press F12 (Previous).
- Select Option 4 (Start a service tool).
- From the Work with dedicated service tools (DST) display, select option 4 (Operator panel functions).
- From the Operator panel functions display, change the IPL source to 2 (B) and IPL mode to 2 (Normal).
- Press F8 (Restart) to set the IPL attributes and restart the system.
- Restore the boot list and the Host Ethernet Adapter settings.
The boot list is not present on a new system backplane, therefore; it is necessary to create the boot devices by booting into the system management services (SMS) menus. See Selecting boot options for information on setting the boot device list.
After the operating system is booted, the bootlist command can be used to verify, or make additional changes to, the list of boot devices for a system or partition.
To restore the Host Ethernet Adapter settings, see Configuring physical ports on a Host Ethernet Adapter.
- Start the system or logical partition. See Starting the system or logical partition.
- Verify the repair. For more information, see Verifying a repair.