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v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, System x3755 Type 8877 and 7163," on page 25 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 or
system-information
LED also lit
Description
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.
116
IBM System x3755 Type 8877 and 7163: Problem Determination and Service Guide
Action
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, see "Removing the I/O board assembly" on
page 68 and "Replacing the I/O board assembly"
on page 69.
1. Reseat the Remote Supervisor Adapter II SlimLine.
See "Removing the Remote Supervisor Adapter II
SlimLine" on page 58 and "Replacing the Remote
Supervisor Adapter II SlimLine" on page 58.
2. Update the firmware for the Remote Supervisor
Adapter II SlimLine. See "Updating the firmware"
on page 13.
3. Replace the Remote Supervisor Adapter II
SlimLine. See "Removing the Remote Supervisor
Adapter II SlimLine" on page 58 and "Replacing
the Remote Supervisor Adapter II SlimLine" on
page 58.
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.
See "Removing the I/O board assembly" on
page 68 and "Replacing the I/O board
assembly" on page 69.
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