Asus P5QC User Manual download pdf (Page 48)

2-22 Chapter 2: Hardware information

3. USB device wake-up (3-pin USBPW1-4, USB7-10, USB1112)

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).

The USBPW1-4 jumper is for the rear USB ports. The USBPW7-10 and

USBPW1112 jumpers are for the internal USB connectors that you can

connect to additional USB ports.

• 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.

2. Keyboard power (3-pin PS2_USBPW56)

This jumper allows you to enable or disable the keyboard and USB port 5-6

wake-up feature. When you set this jumper to pins 2-3 (+5VSB), you can

wake up the computer by pressing a key on the keyboard (the default is

the Space Bar) or using a USB device. This feature requires an ATX power

supply that can supply at least 1A on the +5VSB lead, and a corresponding

setting in the BIOS. The USBPW56 jumper is for the internal USB connectors

that you can connect to additional USB ports.

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Asus P5QC User Manual Page 48