13
Pin 3&4 of AT_COPEN (4-pin): Case Open Message Display Function Select
Pin1
4
3
2
Pin 3&4 of AT_COPEN
→
Case Open Detection
C
A
S
E
O
P
E
N
G
N
D
Pin (3&4) Closed
:
When Case open function pin short to GND, the Case open
function was detected. When used, needs to enter BIOS and enable
‘
Case Open
Detect
’
function. In this case if your case is removed, next time when you restart your
computer, a message will be displayed on screen to inform you of this.
JPX8 (2-pin): PCIEX16 Slot Normal/bifurcation Select
Pin1
JPX8
→
PCIEX16 Slot Function Select
1-2 Open: PCIEX16 (Normal);
;
1-2 Closed: PCIEX16 bifurcation to 2X8 Slot.
Pin1
*Pin(1-2) Open: Normal function as PCIEx16 slot;
Pin(1-2)Closed: PCIEX16 slot bifurcate to 2*PCIEx8 slot; in this case user can install
riser card to install 2* PCIEx8 expansion card.
JPX8
AT_COPEN
