IBM 72335LU User Guide - Page 36

I/O-board, jumpers

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I/O-board jumpers The following illustration shows the jumpers on the I/O board. Power-on password (J33) 1 2 3 1 2 Wake on LAN 3 bypass (J38) 1 2 Force power-on (J32) 3 Table 4 describes the function of each jumper block. Table 4. I/O board jumper blocks Jumper name Description Force power-on (J32) The default position is pins 1 and 2. Change the position of this jumper to pins 2 and 3 to force the server to start when you connect the server to ac power. Note: Use the force power-on jumper only for diagnosing power problems. POST might not be completed, and the server might not start. Power-on password (J33) 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 microprocessor board must be replaced. Wake on LAN bypass (J38) For more information about passwords, see "Passwords" on page 60. 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. 24 IBM System x3850 M2 and System x3950 M2 Type 7141: User's Guide

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I/O-board
jumpers
The
following
illustration
shows
the
jumpers
on
the
I/O
board.
Force power-on (J32)
Wake on LAN
bypass (J38)
1
2
3
1
2
3
1
2
3
Power-on
password
(J33)
Table
4
describes
the
function
of
each
jumper
block.
Table
4.
I/O
board
jumper
blocks
Jumper
name
Description
Force
power-on
(J32)
The
default
position
is
pins
1
and
2.
Change
the
position
of
this
jumper
to
pins
2
and
3
to
force
the
server
to
start
when
you
connect
the
server
to
ac
power.
Note:
Use
the
force
power-on
jumper
only
for
diagnosing
power
problems.
POST
might
not
be
completed,
and
the
server
might
not
start.
Power-on
password
(J33)
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
microprocessor
board
must
be
replaced.
For
more
information
about
passwords,
see
“Passwords”
on
page
60.
Wake
on
LAN
bypass
(J38)
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.
24
IBM
System
x3850
M2
and
System
x3950
M2
Type
7141:
User’s
Guide