Intel Q67 User Manual page 14

（16）JP20 (3-pin):
Mini PCI-E Power VCC 3.3V/3.3 VSB Function Select
JP20
1 3 3
1
1-2 closed ： MINI PCI-E
2-3 closed ： MINI PCI-E
VCC= 3.3V
VCC= 3.3VSB
(17) CASE_ OPEN (2-pin): Case Open Message Display function select
CASE_OPEN
1-2 Open： Normal 1-2 Short： Case Open
Case Open Display Function
Pin 1-2 shorted: Case open display function enabled. In this case if your case is
removed, next time when you restart your computer a message will be displayed
onscreen to inform you of this.
10