Jumper Settings; Usb Power Select - DFI COM331-B User Manual

2
Hardware Installation

Jumper Settings

USB Power Select

JP5 (for USB 0-1), JP4 (for USB 4-7) and JP8 (for USB 2-3) are used to select
the power of the USB ports. Selecting 5V_standby will allow you to use a USB
keyboard to wake up the system.
Important:
If you are using the Wake-On-USB Keyboard/Mouse function for 2 USB
ports, the 5V_standby power source of your power supply must support
≥1.5A. For 3 or more USB ports, the 5V_standby power source of your
power supply must support ≥2A.
12
1
2
3
USB 0-1
(JP5)
1-2 On: 5V
(default)
USB 4-7
(JP4)
1 2 3
1-2 On: 5V
USB 2-3
(default)
(JP8)
1
2
3
2-3 On:
5V_standby
1 2 3
2-3 On:
5V_standby