Lenovo 3817 用户手册
System-board switches and jumpers
The following illustration shows the switches and jumpers on the system board.
1
UEFI boot recovery jumper (JP8)
2
Clear CMOS jumper (JP1)
3
SW8 switch block
The following table describes the jumpers on the system board.
Table 2. System-board jumpers
Jumper number
Jumper name
Jumper setting
JP1
Clear CMOS jumper
v
Pins 1 and 2: Normal
(default) - This keeps the
CMOS data.
(default) - This keeps the
CMOS data.
v
Pins 2 and 3: This clears
the CMOS data, which
clears the power-on
password and
administrator password.
the CMOS data, which
clears the power-on
password and
administrator password.
Chapter 4. Server controls, LEDs, and power
31