Table 5. Components associated with power rail errors
Pwr rail error in the IMM event log
Components
Pwr rail A error
• Microprocessor 1
Pwr rail B error
• Microprocessor 2
Pwr rail C error
• Adapter (if one is installed) in PCI riser-card assembly 1
• PCI riser-card assembly 1
• Fan 1
• DIMMs 1 through 6
Pwr rail D error
• Dual-port network adapter
• Fan 2
• DIMMs 7 through 12
Pwr rail E error
• Hard disk drives
• DIMMs 13 through 18
Pwr rail F error
• Adapter (if one is installed) in PCI riser-card assembly 1
• PCI riser-card assembly 1
• Fan 4
• DIMMs 19 through 24
Pwr rail G error
• PCI adaptor power cable (if one is present)
• Fan 3
• Hard disk drives
• Hard disk drive backplane assembly
Pwr rail H error
• Hard disk drive power cable
• Hard disk drives
• Hard disk drive backplane
or
• PCI adapter power cable
• Adapter installed in PCI riser-card assembly 2
• PCI riser-card assembly 2
d.
Replace the identified component.
Step 5.
Remove the adapters and disconnect the cables and power cords to all internal and external
devices until the server is at the minimum configuration that is required for the server to start (see
“Power-supply LEDs” on page 51 for the minimum configuration).
Step 6.
Reconnect all power cords and turn on the server. If the server starts successfully, reseat the
adapters and devices one at a time until the problem is isolated.
If the server does not start from the minimum configuration, see “Power-supply LEDs” on page 51 to replace
the components in the minimum configuration one at a time until the problem is isolated.
Solving Ethernet controller problems
Use this information to solve Ethernet controller problems.
The method that you use to test the Ethernet controller depends on which operating system you are using.
See the operating-system documentation for information about Ethernet controllers, and see the Ethernet
controller device-driver readme file.
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