IBM 9009-41A Manual page 163

Removing and replacing the drive backplane signal cable in the 9009-41A,
9009-41G, 9009-42A, 9009-42G, or 9223-42H
Find information about removing and replacing a drive backplane signal cable in the IBM Power System
S914 (9009-41A and 9009-41G), IBM Power System S924 (9009-42A and 9009-42G), or IBM Power
System H924 (9223-42H) server.
About this task
Note: Removing or replacing this feature is a customer task. You can complete this task yourself, or
contact a service provider to complete the task for you. You might be charged a fee by the service
provider for this service.
If your system is managed by the Hardware Management Console (HMC), use the HMC to repair a part in
the system. For instructions, see Repairing a part by using the HMC (www.ibm.com/support/
knowledgecenter/POWER9/p9haj/p9haj_hmc_repair.htm).
If your server is not managed by an HMC, complete the steps in the following procedures to remove and
replace a drive backplane signal cable.
Preparing the 9009-41A, 9009-41G, 9009-42A, 9009-42G, or 9223-42H system to
remove and replace a drive backplane signal cable
To prepare the system to remove and replace the drive backplane signal cable, complete the steps in this
procedure.
Procedure
1. Stop the system. For instructions, see Stopping a system (www.ibm.com/support/knowledgecenter/
POWER9/p9haj/crustopsys.htm).
2. Identify the part and the system that you are working on. For instructions, see Identifying a
part (www.ibm.com/support/knowledgecenter/POWER9/p9haj/sal.htm).
Use the blue identify LED on the enclosure to locate the system. Ensure that the serial number of the
system matches the serial number to be serviced.
3. Use the blue LED to identify the server.
Ensure that the serial number of the system matches the serial number to be serviced.
4. Label and disconnect the power cords from the system unit.
See Figure 134 on page 150 or Figure 135 on page 151.
Notes:
• This system might be equipped with two or more power supplies. If the removing and replacing
procedures require the system power to be turned off, ensure that all the power sources to the
system are disconnected.
• The power cord (B) is fastened to the system with hook-and-loop fastener (A). If you are placing the
system in a service position after you disconnect the power cords, ensure that you unstrap the
fastener.
Drive backplane cables in the 9009-41A, 9009-41G, 9009-42A, 9009-42G, or 9223-42H 149