DFI NP951-B16C - Manual (Page 22)

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2
Hardware Installation
JP3 (for USB 2-3) and JP4 (for USB 0-1) are used to select the power of the USB
ports. Selecting 5V_standby will allow you to use a USB device to wake up the
system.
BIOS Setting
“USB KB Wake-Up From S3” in the Power Management Setup submenu of the
BIOS must be set to Enabled. Refer to chapter 3 for more information.
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.
USB Power Select
USB 0-1
(JP4)
USB 2-3
(JP3)
3 1 2 3 1 2
2-3 On:
5V_standby
1-2 On: 5V
(default)