IBM 86481BU Installation Guide - Page 83

Erasing, forgotten, password, clearing

Get IBM 86481BU PDF manuals and user guides View all IBM 86481BU manuals
Add to My Manuals
Save this manual to your list of manuals

Page 83 highlights

Table 4. Error LEDs Error LED Without optional Remote Supervisor Adapter II DIMM error (D16, D17, D18, Memory problem (also lights D19, D20, D21) the system-error LED on the front bezel) Microprocessor 2 error (D22) Microprocessor 2 problem (also lights the system-error LED on the front bezel) Fan error (D25, D26, D27, D29) No function Hard disk error (LEDs on hot-swap hard disk drives) Hot-swap hard disk drive failure With optional Remote Supervisor Adapter II Memory problem (also lights the system-error LED on the front bezel) Microprocessor 2 problem (also lights the system-error LED on the front bezel) Fan failure Hot-swap hard disk drive failure Each error LED is lit to indicate a problem with a specific component. After a problem is corrected, its LED will not be lit the next time the server is restarted; if the problem remains, the LED will be lit again. See the User's Guide on the IBM xSeries Documentation CD for additional information. Complete the following steps to view the lit error LEDs: 1. Review the safety information beginning on page vii and "Handling static-sensitive devices" on page 12. 2. Remove the side cover and support bracket. (See "Removing the side cover" on page 13 and "Removing and installing the support bracket" on page 14.) 3. Open the microprocessor air baffle (see "Opening and closing the microprocessor air baffle" on page 15). 4. If any error LEDs are lit, complete the following steps: a. Note which LEDs are lit. b. Turn off the server and all attached devices (see "Turning off the server" on page 46). c. Follow the instructions in the troubleshooting charts for those components. Erasing a lost or forgotten password (clearing CMOS) This section applies to lost or forgotten passwords. For more information about lost or forgotten passwords, see the User's Guide. Complete the following steps to set the CMOS recovery jumper and erase a forgotten password: 1. Review the safety information beginning on page vii and "Handling static-sensitive devices" on page 12. 2. Turn off the server and all attached devices. 3. Disconnect the power cord. 4. Remove the side cover and support bracket. (See "Removing the side cover" on page 13 and "Removing and installing the support bracket" on page 14.) 5. Locate the CMOS recovery jumper (JCMOS1) on the system board, removing any adapters or other objects that impede access to the jumper. Chapter 6. Solving problems 69

  • 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
Table
4.
Error
LEDs
Error
LED
Without
optional
Remote
Supervisor
Adapter
II
With
optional
Remote
Supervisor
Adapter
II
DIMM
error
(D16,
D17,
D18,
D19,
D20,
D21)
Memory
problem
(also
lights
the
system-error
LED
on
the
front
bezel)
Memory
problem
(also
lights
the
system-error
LED
on
the
front
bezel)
Microprocessor
2
error
(D22)
Microprocessor
2
problem
(also
lights
the
system-error
LED
on
the
front
bezel)
Microprocessor
2
problem
(also
lights
the
system-error
LED
on
the
front
bezel)
Fan
error
(D25,
D26,
D27,
D29)
No
function
Fan
failure
Hard
disk
error
(LEDs
on
hot-swap
hard
disk
drives)
Hot-swap
hard
disk
drive
failure
Hot-swap
hard
disk
drive
failure
Each
error
LED
is
lit
to
indicate
a
problem
with
a
specific
component.
After
a
problem
is
corrected,
its
LED
will
not
be
lit
the
next
time
the
server
is
restarted;
if
the
problem
remains,
the
LED
will
be
lit
again.
See
the
User’s
Guide
on
the
IBM
xSeries
Documentation
CD
for
additional
information.
Complete
the
following
steps
to
view
the
lit
error
LEDs:
1.
Review
the
safety
information
beginning
on
page
vii
and
“Handling
static-sensitive
devices”
on
page
12.
2.
Remove
the
side
cover
and
support
bracket.
(See
“Removing
the
side
cover”
on
page
13
and
“Removing
and
installing
the
support
bracket”
on
page
14.)
3.
Open
the
microprocessor
air
baffle
(see
“Opening
and
closing
the
microprocessor
air
baffle”
on
page
15).
4.
If
any
error
LEDs
are
lit,
complete
the
following
steps:
a.
Note
which
LEDs
are
lit.
b.
Turn
off
the
server
and
all
attached
devices
(see
“Turning
off
the
server”
on
page
46).
c.
Follow
the
instructions
in
the
troubleshooting
charts
for
those
components.
Erasing
a
lost
or
forgotten
password
(clearing
CMOS)
This
section
applies
to
lost
or
forgotten
passwords.
For
more
information
about
lost
or
forgotten
passwords,
see
the
User’s
Guide
.
Complete
the
following
steps
to
set
the
CMOS
recovery
jumper
and
erase
a
forgotten
password:
1.
Review
the
safety
information
beginning
on
page
vii
and
“Handling
static-sensitive
devices”
on
page
12.
2.
Turn
off
the
server
and
all
attached
devices.
3.
Disconnect
the
power
cord.
4.
Remove
the
side
cover
and
support
bracket.
(See
“Removing
the
side
cover”
on
page
13
and
“Removing
and
installing
the
support
bracket”
on
page
14.)
5.
Locate
the
CMOS
recovery
jumper
(JCMOS1)
on
the
system
board,
removing
any
adapters
or
other
objects
that
impede
access
to
the
jumper.
Chapter
6.
Solving
problems
69