IBM 72332MU Installation Guide - Page 86

the system-error LED

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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 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 Action TEMP A system temperature or component 1. See the BMC log or the system-error log for the has exceeded specifications. source of the fault. Note: A fan LED might also be lit. 2. Make sure that the airflow of the server is not blocked. 3. If a fan LED is lit, reseat the fan. 4. Replace the fan for which the LED is lit. 5. Make sure that the room is neither too hot nor too cold (see "Environment" in "Features and specifications" on page 4). 6. If one of the VRMs indicates "hot," remove ac power before you restore dc power. MEM Memory failure. Note: The error LED on the memory card is also lit. 1. Remove the memory card that has a lit error LED; then, press the light path diagnostics button on the memory card to identify the failed card or DIMM. See "Diagnosing problems using light path diagnostics" on page 69 for the location of the LEDs. 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. Memory card c. (Trained service technician only) Microprocessor board NMI A hardware error has been reported 1. See the BMC log and the system-error log. to the operating system. Note: The PCI or MEM LED might 2. If the PCI LED is lit, follow the instructions for that also be lit. LED. 3. If the MEM LED is lit, follow the instructions for that LED. 4. Restart the server. CNFG A configuration error has occurred. 1. Find the failing or missing component by checking the other light path diagnostics LEDs. 2. Make sure that the fans, power supplies, microprocessors, VRMs, and memory cards are installed in the correct sequence. 74 IBM System x3850 M2 and System x3950 M2 Types 7141 and 7233: Installation Guide

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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 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
Action
TEMP
A system temperature or component
has exceeded specifications.
Note:
A fan LED might also be lit.
1.
See the BMC log or the system-error log for the
source of the fault.
2.
Make sure that the airflow of the server is not
blocked.
3.
If a fan LED is lit, reseat the fan.
4.
Replace the fan for which the LED is lit.
5.
Make sure that the room is neither too hot nor too
cold (see “Environment” in “Features and
specifications” on page 4).
6.
If one of the VRMs indicates “hot,” remove ac
power before you restore dc power.
MEM
Memory failure.
Note:
The error LED on the
memory card is also lit.
1.
Remove the memory card that has a lit error LED;
then, press the light path diagnostics button on the
memory card to identify the failed card or DIMM.
See “Diagnosing problems using light path
diagnostics” on page 69 for the location of the
LEDs.
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.
Memory card
c.
(Trained service technician only)
Microprocessor board
NMI
A hardware error has been reported
to the operating system.
Note:
The PCI or MEM LED might
also be lit.
1.
See the BMC log and the system-error log.
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.
CNFG
A configuration error has occurred.
1.
Find the failing or missing component by checking
the other light path diagnostics LEDs.
2.
Make sure that the fans, power supplies,
microprocessors, VRMs, and memory cards are
installed in the correct sequence.
74
IBM System x3850 M2 and System x3950 M2 Types 7141 and 7233: Installation Guide