Asus T4-P5G31 User Manual - Page 48
USB device wake-up 3-pin USBPW12, USBPW34, Keyboard power 3-pin KBPWR
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2. USB device wake-up (3-pin USBPW12, USBPW34) Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set to +5VSB to wake up from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). USBPW12 12 +5V (Default) R P5K18L P5K18L USB device Wake up USBPW34 12 +5V (Default) 23 +5VSB 23 +5VSB • The USB device wake-up feature requires a power supply that can provide 500mA on the +5VSB lead for each USB port. Otherwise, the system would not power up. • The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode. 3. Keyboard power (3-pin KBPWR) This jumper allows you to enable or disable the keyboard wake-up feature. Set this jumper to pins 2-3 (+5VSB) to wake up the computer when you press a key on the keyboard (the default is the Space Bar). This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS. R P5K18L KBPWR 12 23 +5V (Default) +5VSB P5K18L Keyboard Power Setting 4- Chapter 4: Motherboard Info