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 95 on page 99 or Figure 96 on page 100.
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.
Figure 95. Removing the power cords from a rack-mounted server
Control panel cables for the 9009-41A, 9009-42A, or 9223-42H
99
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