Jetway Computer NF9HG - Manual (Page 13)

8
Pin 1 & 2 of AT_COPEN (4-pin): AT Mode Function Select
AT_COPEN(Pin 1&2) → AT Mode Select
1-2 Close: AT Mode Selected.
1-2 Open: ATX Mode Selected(Default);
4
3 Pin 1
2
Pin 1
2 4
3
*ATX Mode Selected: Press power button to power on after power input ready;
AT Mode Selected: Directly power on as power input ready.
Pin 3 & 4 of AT_COPEN (4-pin): Case Open Message Display Function Select
AT_COPEN(Pin 3&4) → Case Open Function Select
3-4 Close: Case Open Function Selected (One Touch).
3-4 Open: Normal(Default);
4
1
1
4
Pin3
2
2
Pin3
Pin 3-4 Close: 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.