Removing The System Backplane From A Water-Cooled 8335-Gtb - IBM Power System S822LC Manual

1. Go to the IBM Support Portal website(www.ibm.com/support/entry/portal/product/power/scale-
out_lc).
2. In the search field, enter your machine type and model. Then, click the correct product support entry
for your system.
3. From the Downloads list, click Scale-out LC system VPD update tool.
4. Follow the directions that are provided with the tool to update the VPD.
As part of the system backplane replacement, the cold plate is removed from the system processor
module. When the cold plate is removed from the system processor module, the thermal interface
material (TIM) is typically adhered to the cold plate. Unless damaged, the TIM that is adhered to the cold
plate can be reused. If the TIM is damaged, it will need to be replaced. Before you begin the processor
removal and replacement procedure, ensure that you have a spare TIM on hand.
Procedure
1. Create a backup of the BMC by completing the following steps:
a. Access the BMC GUI from a browser. The user needs Administrator privilege. You can use either
Google Chrome or Mozilla Firefox browsers.
b. Navigate to Maintenance > IPMI Configuration
c. Press the Save button to create the backup. The file is named save_config.bin
2. Save the BMC network settings by completing the following steps:
a. Navigate to HMC Management > Console Settings > Change BMC/IPMI Network Settings
b. Record the following values:
IP address
Subnet mask
Gateway
3. Power off the system and place it in the service position. For instructions, see "Preparing the
8335-GTB system to remove and replace internal parts" on page 195.

Removing the system backplane from a water-cooled 8335-GTB

Learn how to remove the system backplane in the water-cooled IBM Power System S822LC (8335-GTB)
system.
Procedure
1. Attach the electrostatic discharge (ESD) wrist strap.
Attention:
v Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to
an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging
your hardware.
v When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is
used for static control. It does not increase or decrease your risk of receiving electric shock when
using or working on electrical equipment.
v If you do not have an ESD wrist strap, just 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.
2. Remove the power riser air baffle. Using the blue tabs (A), unsnap the baffle and lift it from the
system. See Figure 142 on page 123.
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Power Systems: Servicing the IBM Power System S822LC (8335-GTB)