v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Problem Determination and Service Guide to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
LED Description Action
PS 2 The power supply in bay 2 has failed. Attention: In a dc power environment, only trained service
personnel other than IBM service technicians are authorized to
connect or disconnect power to the dc power supply and to
remove and install a dc power supply. See the documentation
that comes with each dc power supply.
1. Make sure that the power supply is correctly seated.
2. Replace the failed power supply.
CPU A microprocessor has failed.
1. Make sure that the failing microprocessor, which is indicated
by a lit LED on the system board, is installed correctly. See
the User’s Guide on the IBM System x Documentation CD
for information about installing a microprocessor.
2. Call for service.
VRM An error occurred on the
microprocessor voltage regulator
module (VRM).
1. Replace the VRM.
2. Call for service.
CNFG A hardware configuration error has
occurred.
1. Check the microprocessors that were just installed to make
sure that they are compatible with each other and with the
VRM (see “Installing an additional microprocessor” on page
20 for compatiblity requirements).
2. (Trained service technician only) Replace an incompatible
microprocessor.
3. Check the system error logs for information about the error.
Replace any components that are indicated. (Use the
Configuration/Setup Utility program to view the error logs.)
MEM A memory error has occurred. Replace the failing DIMM, which is indicated by the lit LED on
the system board.
NMI A machine check error has occurred. Check the system-error log for information about the error. (Use
the Configuration/Setup Utility program to view the error logs.)
S ERR Reserved.
SP The service processor has failed. Attention: In a dc power environment, only trained service
personnel other than IBM service technicians are authorized to
connect or disconnect power to the dc power supply. See the
documentation that comes with each dc power supply.
1. Remove power from the server; then, reconnect the server
to power and restart the server.
2. Update the firmware on the BMC.
3. If a Remote Supervisor Adapter II SlimLine is installed,
update the firmware; if the problem remains, replace the
adapter.
4. Call for service
DASD A hard disk drive error has occurred.
1. Check the LEDs on the hard disk drives and replace the
indicated drive.
2. Call for service.
76 IBM System x3650 Type 7979: Installation Guide
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