IBM 9040-MR9, Manual

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minimum of 5 seconds. If at any point in this service process you move away from the
system, it is important to again discharge yourself by touching an unpainted metal surface
for at least 5 seconds before you continue with the service process.
5. Label and disconnect all external cables that are attached to the PCIe adapters.
6. Label and disconnect the power source from the system by unplugging the power cords from the
system.
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 power sources to the system
are disconnected.
• The power cord (B) is fastened to the system with a 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 1. Removing the power cords
(L003)
2 Power Systems: System backplane