IBM System x3755 Types 7163 Installation Manual page 68

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.
Lit light path
diagnostics LED with
the system-error LED
also lit Description
MEM Memory failure.
NMI A hardware error has been reported
to the operating system.
Note: The PCI or MEM LED might
also be lit.
S ERR A PCI serr error has occurred.
SP There is a fault in the Remote
Supervisor Adapter II SlimLine.
DASD A hard disk drive has failed or has
been removed.
Note: The error LED on the failing
hard disk drive might also be lit.
56
IBM System x3755 Types 8877 and 7163: Installation Guide
Action
1. Remove the microprocessor/memory card with the
lit error LED on the top of the card; then, press the
light path diagnostics button on the
microprocessor/memory card to identify the failed
DIMM.
2. Reseat the DIMM.
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. DIMM
b. Microprocessor/memory card
1. See the BMC log or the system-error log for the
source of the fault.
2. If the PCI LED is lit, follow the instructions for that
LED.
3. If the MEM LED is lit, follow the instructions for
that LED.
4. Restart the server.
1. See the BMC log or the system-error log.
2. Replace the failing adapter.
3. (Trained service technician only) Replace the I/O
board.
1. Reseat the Remote Supervisor Adapter II SlimLine.
2. Update the firmware for the Remote Supervisor
Adapter II SlimLine.
3. Replace the Remote Supervisor Adapter II
SlimLine.
1. Reinstall the removed drive.
2. Reseat the following components:
a. Failing hard disk drive
b. SAS hard disk drive backplane cables
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. Failing hard disk drive
b. SAS hard disk drive backplane cables
c. SAS backplane
d. (Trained service technician only) I/O board