Table 24. 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
• Optional 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
• Optional dual-port network adaptor
• Fan 2
• DIMMs 7 through 12
Pwr rail E error
• Optional DVD drive (if one is installed)
• Hard disk drives
• DIMMs 13 through 18
Pwr rail F error
• Optional 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
• Optional PCI adaptor power cable (if one is present)
• Fan 3
• Hard disk drives
• Hard disk drive backplane assembly
Pwr rail H error
• Optional PCI adaptor power cable (if one is present)
• Optional adapter (if one is presented) 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 179 for the minimum configuration).
Step 6.
Reconnect all ac 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 179 to
replace the components in the minimum configuration one at a time until the problem is isolated.
Solving 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.
Try the following procedures:
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