Lenovo System x3650 M5 Installation And Service Manual page 114

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
• Go to the support website at
and new device drivers or to submit a request for information.
Symptom
The Pwr rail L error has been
recorded in the system event
log.
The Pwr rail M error has been
recorded in the system event
log.
102
Lenovo System x3650 M5 Installation and Service Guide
http://www.lenovo.com/support
Action
1. Disconnect the server power cords.
2. Remove the following components if the Pwr rail L error has been recorded in
the system event log:
• Optional PCI adaptor power cable-correlated PCI adaptor
• PCI Riser Card Assembly where the optional PCI adaptor power cable-
correlated PCI adaptor is installed
– Optional PCI adaptor power cable (if one is present)
3. Restart the server. If the Pwr rail L error has been recorded in the system event
log again, (trained technician only) replace the system board (see "Removing
the system board" on page 299 and "Replacing the system board" on page
302).
4. Reinstall the component one at a time, in the order shown, restarting the server.
If the Pwr rail L error has been recorded in the system event log again, the
component that you just reinstalled is defective. Replace the defective
component.
• Optional PCI adaptor power cable (if one is present)
• PCI Riser Card Assembly where the optional PCI adaptor power cable-
correlated PCI adaptor is installed
• Optional PCI adaptor power cable-correlated PCI adaptor
1. Disconnect the server power cords.
2. Remove the following components if the Pwr rail M error has been recorded in
the system event log:
• Optional PCI adaptor power cable-correlated PCI adaptor
• PCI Riser Card Assembly where the optional PCI adaptor power cable-
correlated PCI adaptor is installed
• Optional PCI adaptor power cable (if one is present)
3. Restart the server. If the Pwr rail M error has been recorded in the system event
log again, (trained technician only) replace the system board (see "Removing
the system board" on page 299 and "Replacing the system board" on page
302).
4. Reinstall the components one at a time, in the order shown, restarting the server
each time. If the Pwr rail M error has been recorded in the system event log
again, the component that you just reinstalled is defective. Replace the
defective component.
• Optional PCI adaptor power cable (if one is present)
• PCI Riser Card Assembly where the optional PCI adaptor power cable-
correlated PCI adaptor is installed
• Optional PCI adaptor power cable-correlated PCI adaptor
to check for technical information, hints, tips,