Mainboard P4M900
13
Headers & Jumpers
Front USB Headers: USB2/ USB3
This mainboard provide four onboard USB 1.1/2.0 ports (back panel) that attach to USB
devices. There are two additional USB headers that can be connected by cables to four more
USB ports on the front panel of your case giving you a possible eight USB ports.
USB Power On function Header: JP2
USB devices attached to the back panel USB ports can awaken the system from sleep mode.
In order to enable this functionality, you must adjust the jumper cap on JP3 header for +5V or
+5VSB mode depending on which USB port that the USB device is attached to.
JP2
Assignment
Assignment
Pin 1-2 Closed
+5V
USB Power On Disable (Default)
Pin 2-3 Closed
+5VSB USB Power On Enabled
Note:
Close stands for putting a jumper cap onto two header pins.
Pin
Assignment
Pin
Assignment
1 VCC
2 VCC
3 -DATA
4 -DATA
5 +DATA
6 +DATA
7 GND
8 GND
USB2/ 3
9 Key
10
N/C
Attention
If you are using a USB 2.0 device with Windows 2000/XP, you will need to
install the USB 2.0 driver from the Microsoft
®
website. If you are using
Service pack 1 (or later) for Windows
®
XP, and using Service pack4 (or
later) for Windows® 2000, you will not have to install the driver.
