Asus P5L 1394 Motherboard Installation Guide - Page 41
P5L 1394, Keyboard Power Setting, USB Device Wake Up
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2. USB device wake-up jumpers (3-pin USBPW1234, USBPW5678) 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). USBPW1234 P5L 1394 12 23 +5V (Default) +5VSB R USBPW5678 12 23 +5V (Default) P5L 1394 USB Device Wake Up +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) The 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 isthe 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. KBPWR 3 2 2 1 P5L 1394 +5V +5VSB R (Default) P5L 1394 Keyboard Power Setting ASUS P5L 1394 2-21