I/O-board jumpers
The following illustration shows the jumpers on the I/O board.
Wake on LAN
bypass (J31)
Table 5. I/O-board jumpers
Jumper
Jumper
number
name
J31
Wake on
LAN
bypass
J29
Password
override
J22
Boot
recovery
Note: If no jumper is present, the server responds as if the jumper is on pins 1 and 2.
1
1
Password
2
2
override (J29)
3
3
Jumper setting
v Pins 1 and 2: Normal operation (default).
v Pins 2 and 3: Clears Wake on LAN bypass.
When you change the position of this jumper, the server
bypasses the power-on password check. The next time you turn
on the server, the Setup Utility starts and you can change or
delete the power-on password. You do not need to move the
jumper back to the default position (pins 1 and 2) after the
password is overridden.
v Pins 1 and 2: Normal operation (default).
v Pins 2 and 3: Enable the UEFI recovery mode.
1
Boot
2
recovery
3
(J22)
Chapter 2. Installing optional devices
37