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System jumpers

Jumper name

Settings

Function

 

 

 

J1D2

1-2 (default)

Password enabled

Password clear

2-3

Password disabled/cleared

 

 

 

J1D3

1-2 (default)

BIOS clear CMOS

Clear CMOS

2-3

Forced CMOS clear

 

 

 

J3H1

1-2

Force lower bank

BIOS select

2-3 (default)

Normal operation

 

 

 

J1D1

1-2 (default)

BMC force update disabled

BMC force update mode

2-3

BMC force update enabled

 

 

 

J8A3

1-2

DCD (Data Carrier Detect) to DTR

Serial B port (RJ-45)

 

(Data Terminal Ready) signal

 

3-4 (default)

DSR (Data Set Ready) to DTR signal

 

 

 

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Image 37
Acer Altos R520 manual System jumpers, Jumper name Settings Function