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2.8 Jumper Settings
How Jumpers Work
To modify the operation of the motherboard, jumpers can be used to choose between optional
settings. Jumpers create shorts between two pins to change the function of the connector.
Pin 1 is identified with a square solder pad on the printed circuit board. See the diagram
at right for an example of jumping pins 1 and 2. Refer to the motherboard layout page for
jumper locations.
Note: On two-pin jumpers, "Closed" means the jumper is on and "Open" means the
jumper is off the pins.
System Recovery
OBR1 is the system recovery jumper. Leave the jumper off (Open) this two-pin jumper for
normal operation. Close it for system recovery.
1
OBR1
HS1
BUZ1
PCH
GPIO1
I-SATA5
I-SATA4
I-SATA3
I-SATA1
I-SATA0
Connector
Pins
Jumper
Setting
System Recovery
Jumper Settings
Jumper Setting
Open
Closed
KB/MOUSE
AUDIO
USB4/5/6/7
USB0/1
(3.0)
LAN1
FANS1
FANS2
C7C232-CB-ML
Rev. 1.00
CN2
FANC1
CPU
BT1
NGFFB1
CN1
DBGH1
TPMH1
PCHDR1
3
2
1
3
2
1
Definition
Normal
System recovery
1. System Recovery
DIMMA1
DIMMA2
DIMMB1
DIMMB2
47
Chapter 2: Installation
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