Acer Altos R520 Manual Do Utilizador

27

System jumpers 

J1D2

Password clear

1-2 (default)

2-3

Password enabled

Password disabled/cleared

J1D3

Clear CMOS

1-2 (default)

2-3

BIOS clear CMOS

Forced CMOS clear

J3H1

BIOS select

1-2

2-3 (default)

Force lower bank

Normal operation

J1D1

BMC force update mode

1-2 (default)

2-3 

BMC force update disabled

BMC force update enabled

J8A3

Serial B port (RJ-45)

1-2

3-4 (default)

DCD (Data Carrier Detect) to DTR 
(Data Terminal Ready) signal 

DSR (Data Set Ready) to DTR signal