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Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware information
3.3.
3.3.
3.
Keyboard power (3-pin KBPWR)Keyboard power (3-pin KBPWR)
Keyboard power (3-pin KBPWR)Keyboard power (3-pin KBPWR)
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.
2.2.
2.2.
2.
USB device wake-up jumpers (3-pin USBPW12, USBPW34,USB device wake-up jumpers (3-pin USBPW12, USBPW34,
USB device wake-up jumpers (3-pin USBPW12, USBPW34,USB device wake-up jumpers (3-pin USBPW12, USBPW34,
USB device wake-up jumpers (3-pin USBPW12, USBPW34,
USBPW56, USBPW78)USBPW56, USBPW78)
USBPW56, USBPW78)USBPW56, USBPW78)
USBPW56, USBPW78)
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 USBPWR12 and USBPWR34 jumpers are for the rear USB ports.
The USBPWR56 and USBPWR78 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.
P5LD2
®
P5LD2 USB device wake-up
3
2
21
+5V
(Default)
+5VSB
USBPW56
USBPW78
3
2
21
+5V
(Default)
+5VSB
USBPW34
USBPW12
P5LD2
®
P5LD2 Keyboard power setting
(Default)
+5V +5VSB
KBPWR
2312