IBM 72336RU User Manual - Page 38

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 66. 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. 26 IBM System x3850 M2 and System x3950 M2 Types 7141 and 7233: 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
66.
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.
26
IBM System x3850 M2 and System x3950 M2 Types 7141 and 7233: User’s Guide