I/O
board
internal
connectors
and
jumpers
The
following
illustration
shows
the
internal
connectors
and
jumpers
on
the
I/O
board.
Light path diagnostic
Front USB
Battery
Power-on password
override
Boot recovery
Wake-on-LAN
bypass
Media backplane
Remote Supervisor Adapter II SlimLine
SAS 1
SAS 2
SP serial (COM 2)
System serial (COM 1)
1 2 3
1 2 3
1 2 3
Default jumper
position
Table
2
describes
the
function
of
each
three-pin
jumper
block.
Table
2.
I/O
board
jumper
blocks
Jumper
name
Description
Power-on
password
override
(J9)
The
default
position
is
pins
1
and
2.
Change
the
position
of
this
jumper
to
pins
2
and
3
to
bypass
the
power-on
password
check.
Changing
the
position
of
this
jumper
does
not
affect
the
administrator
password
check
if
an
administrator
password
is
set.
If
the
administrator
password
is
lost,
the
operator
information
panel
must
be
replaced.
For
more
information
about
passwords,
see
“Passwords”
on
page
62.
Boot
recovery
(BIOS)
(J14)
The
default
position
is
pins
1
and
2
(use
the
primary
page
during
startup).
Move
the
jumper
to
pins
2
and
3
to
use
the
secondary
page
during
startup.
Wake
on
LAN
®
bypass
(J15)
The
default
position
is
pins
1
and
2.
Move
the
jumper
to
pins
2
and
3
to
prevent
a
Wake
on
LAN
packet
from
waking
the
system
when
the
system
is
in
the
powered-off
state.
16
IBM
System
x3950
Type
8872
and
System
x3950
E
Type
8874:
User’s
Guide
Summary of Contents for x3950 8872
Page 1: ...IBM System x3950 Type 8872 and System x3950 E Type 8874 User s Guide...
Page 2: ......
Page 3: ...IBM System x3950 Type 8872 and System x3950 E Type 8874 User s Guide...
Page 68: ...56 IBM System x3950 Type 8872 and System x3950 E Type 8874 User s Guide...
Page 98: ...86 IBM System x3950 Type 8872 and System x3950 E Type 8874 User s Guide...
Page 100: ...88 IBM System x3950 Type 8872 and System x3950 E Type 8874 User s Guide...
Page 109: ......
Page 110: ...Part Number 31R1856 Printed in USA 1P P N 31R1856...
