• 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 http://www.lenovo.com/support to check for technical information, hints, tips,
and new device drivers or to submit a request for information.
Symptom
Action
• Riser-card assembly 1 (or Rear two Hard-disk-drivekit on Riser 1)
• Optional adapter (if one is present) installed in riser-card assembly 1 (or Rear
Hard disk Drives in Rear two Hard-disk-drive kit on Riser 1)
The Pwr rail L error has been
recorded in the system event
log.
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 292 and “Replacing the system board” on page 294).
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
The Pwr rail M error has been
recorded in the system event
log.
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 292 and “Replacing the system board” on page 294).
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
100
Lenovo System x3650 M5 Installation and Service Guide
Summary of Contents for x3650 M5
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