I/O-board jumpers
The following illustration shows the jumpers on the I/O board.
Wake on LAN
bypass (J31)
1
2
3
Password
override (J29)
1
2
3
1
2
3
Boot
recovery
(J22)
Table 5. I/O-board jumpers
Jumper
number
Jumper
name Jumper setting
J31 Wake on
LAN
bypass
v Pins 1 and 2: Normal operation (default).
v Pins 2 and 3: Clears Wake on LAN bypass.
J29 Password
override
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.
J22 Boot
recovery
v Pins 1 and 2: Normal operation (default).
v Pins 2 and 3: Enable the UEFI recovery mode.
Note: If no jumper is present, the server responds as if the jumper is on pins 1 and 2.
Chapter 2. Installing optional devices 37
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