IBM 72332MU Installation Guide - Page 87

Follow the suggested actions in the order in which they are listed in the Action column until

Get IBM 72332MU - System x3950 M2 PDF manuals and user guides
UPC - 883436084673
View all IBM 72332MU manuals
Add to My Manuals
Save this manual to your list of manuals

Page 87 highlights

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 CPU A microprocessor has failed, is missing, or has been incorrectly installed. 1. Make sure that the microprocessors are installed in the correct sequence; see "Installing an additional microprocessor" on page 22. 2. Check the BMC log or the system-error log to determine the reason for the lit LED. 3. Find the failing, missing, or mismatched microprocessor by checking the LEDs on the microprocessor board. 4. Reseat the following components: a. Failing microprocessor b. Microprocessor board 5. Replace the following components one at a time, in the order shown, restarting the server each time: a. (Trained service technician only) Failing microprocessor b. (Trained service technician only) Microprocessor board VRM A dc-dc regulator has failed or is missing. 1. Check the BMC log or the system-error log to determine the reason for the lit LED (for a VRM). 2. Find the failing or missing VRM by checking the LEDs on the microprocessor board. 3. Install any missing VRMs. 4. Reseat the following components: a. Failing VRM b. Microprocessor associated with the VRM c. Microprocessor board 5. Replace the following components one at a time, in the order shown, restarting the server each time: a. Failing VRM b. (Trained service technician only) Microprocessor associated with the VRM c. (Trained service technician only) Microprocessor board Chapter 6. Solving problems 75

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
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
CPU
A microprocessor has failed, is
missing, or has been incorrectly
installed.
1.
Make sure that the microprocessors are installed in
the correct sequence; see “Installing an additional
microprocessor” on page 22.
2.
Check the BMC log or the system-error log to
determine the reason for the lit LED.
3.
Find the failing, missing, or mismatched
microprocessor by checking the LEDs on the
microprocessor board.
4.
Reseat the following components:
a.
Failing microprocessor
b.
Microprocessor board
5.
Replace the following components one at a time,
in the order shown, restarting the server each time:
a.
(Trained service technician only) Failing
microprocessor
b.
(Trained service technician only)
Microprocessor board
VRM
A dc-dc regulator has failed or is
missing.
1.
Check the BMC log or the system-error log to
determine the reason for the lit LED (for a VRM).
2.
Find the failing or missing VRM by checking the
LEDs on the microprocessor board.
3.
Install any missing VRMs.
4.
Reseat the following components:
a.
Failing VRM
b.
Microprocessor associated with the VRM
c.
Microprocessor board
5.
Replace the following components one at a time,
in the order shown, restarting the server each time:
a.
Failing VRM
b.
(Trained service technician only)
Microprocessor associated with the VRM
c.
(Trained service technician only)
Microprocessor board
Chapter 6. Solving problems
75