Acer Altos R720 Series - Manual (Page 33)

23
System jumpers
Jumper name Settings Function
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