IBM 8480 Hardware Maintenance Manual - Page 118

Undetermined, problems

Get IBM 8480 - Eserver xSeries 205 PDF manuals and user guides
UPC - 087944878070
View all IBM 8480 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 118 highlights

Undetermined problems Use the information in this section if the diagnostic tests did not identify the failure, the devices list is incorrect, or the system is inoperative. Notes: 1. Damaged data in CMOS can cause undetermined problems. 2. Damaged data in BIOS code can cause undetermined problems. Check the LEDs on all the power supplies. If the LEDs indicate the power supplies are working correctly, complete the following steps: 1. Turn off the server. 2. Be sure the server is cabled correctly. 3. Remove or disconnect the following devices (one at a time) until you find the failure (turn on the server and reconfigure each time): Any external devices Surge suppressor device (on the server) Modem, printer, mouse, or non-IBM devices Each adapter Drives Memory modules (minimum requirement = 256 MB (2 banks of 128 MB DIMMs)) Note: Minimum operating requirements are: a. One power supply b. Power cage assembly, if installed. c. System board d. One microprocessor and VRM e. Memory module (with a minimum of two 128 MB DIMMs) 4. Turn on the server. If the problem remains, suspect the following FRUs in the order listed: Power supply Power cage assembly, if installed System board Notes: 1. If the problem goes away when you remove an adapter from the system and replacing that adapter does not correct the problem, suspect the system board. 2. If you suspect a networking problem and all the system tests pass, suspect a network cabling problem external to the system. 108 IBM xSeries 205 Type 8480: Hardware Maintenance Manual and Troubleshooting Guide

  • 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
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
Undetermined
problems
Use
the
information
in
this
section
if
the
diagnostic
tests
did
not
identify
the
failure,
the
devices
list
is
incorrect,
or
the
system
is
inoperative.
Notes:
1.
Damaged
data
in
CMOS
can
cause
undetermined
problems.
2.
Damaged
data
in
BIOS
code
can
cause
undetermined
problems.
Check
the
LEDs
on
all
the
power
supplies.
If
the
LEDs
indicate
the
power
supplies
are
working
correctly,
complete
the
following
steps:
1.
Turn
off
the
server.
2.
Be
sure
the
server
is
cabled
correctly.
3.
Remove
or
disconnect
the
following
devices
(one
at
a
time)
until
you
find
the
failure
(turn
on
the
server
and
reconfigure
each
time):
Any
external
devices
Surge
suppressor
device
(on
the
server)
Modem,
printer,
mouse,
or
non-IBM
devices
Each
adapter
Drives
Memory
modules
(minimum
requirement
=
256
MB
(2
banks
of
128
MB
DIMMs))
Note:
Minimum
operating
requirements
are:
a.
One
power
supply
b.
Power
cage
assembly,
if
installed.
c.
System
board
d.
One
microprocessor
and
VRM
e.
Memory
module
(with
a
minimum
of
two
128
MB
DIMMs)
4.
Turn
on
the
server.
If
the
problem
remains,
suspect
the
following
FRUs
in
the
order
listed:
Power
supply
Power
cage
assembly,
if
installed
System
board
Notes:
1.
If
the
problem
goes
away
when
you
remove
an
adapter
from
the
system
and
replacing
that
adapter
does
not
correct
the
problem,
suspect
the
system
board.
2.
If
you
suspect
a
networking
problem
and
all
the
system
tests
pass,
suspect
a
network
cabling
problem
external
to
the
system.
108
IBM
xSeries
205
Type
8480:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide