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Chapter 4: Motherboard infoChapter 4: Motherboard info
Chapter 4: Motherboard infoChapter 4: Motherboard info
Chapter 4: Motherboard info
• The USB device wake-up feature requires a power supply that can
provide 500 mA 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.
2.2.
2.2.
2.
USB device wake-up (3-pin USBPWR12, USBPWR34)USB device wake-up (3-pin USBPWR12, USBPWR34)
USB device wake-up (3-pin USBPWR12, USBPWR34)USB device wake-up (3-pin USBPWR12, USBPWR34)
USB device wake-up (3-pin USBPWR12, USBPWR34)
The USBPWR12 and USBPWR34 jumpers are for the rear USB ports.
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).
®
USB device wake up
USBPW12
USBPW34
3
2
21
+5V
(Defaul
t)
+5VSB
®
1394 setting
1394SEL
Disabl
e
(Default)
Enable
1
2
23
2.2.
2.2.
2.
1394 setting (3-pin 1394SEL)1394 setting (3-pin 1394SEL)
1394 setting (3-pin 1394SEL)1394 setting (3-pin 1394SEL)
1394 setting (3-pin 1394SEL)
Keep the default setting (1-2) to enable support for IEEE 1394a
devices. To disable, move the jumper caps to pins 2-3.