Biostar K8NHA GRAND K8NHA Grand user's manual - Page 13

K8NHA Grand Power Source Selection for USB: JUSBV1/JUSBV3 JUSBV1/JUSBV3 Assignment 3 +5V 1 Pin 1-2 close 3 1 Pin 2-3 close +5V standby Voltage Description JUSBV1: +5V for USB at the J1394_USB1 and JUSBLAN1 connector ports. JUSBV3: +5V for USB at the JUSB 1~2 connector ports. JUSBV1: J1394_USB1 and JUSBLAN1 ports powered with standby voltage of +5V JUSBV3: JUSB1~2 ports powered with standby voltage of 55V Note: In order to support this function "Power-on system via USB device," "JUSBV1/JUSBV3" jumper cap should be placed on Pin 2-3 individually. Power Source Selection for Keyboard/Mouse: JKBMSV1 JKBMSV1 Assignment Description 3 +5V 1 Pin 1-2 close +5V for keyboard and mouse 3 1 Pin 2-3 close +5V Standby Voltage PS/2 mouse and PS/2 keyboard are powered with +5V standby voltage. Note: In order to support this function "Power-on system via keyboard and mouse", "JKBMSV1" jumper cap should be placed on Pin 2-3. COM2 Header: JCOM2 (Optional) This header allows user to connect additional serial cable on the PC back panel. It can be used to connect serial devices, for example, mouse or modem. 2 10 1 9 JCOM2-Header Pin Assignment Pin Assignment 1 RIN1 2 RIN3 3 DOUT2 4 DOUT3 5 Ground 6 RIN2 7 DOUT1 8 RIN4 9 -XRI1 10 NA 13