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2.7
Jumpers
The jumpers on the motherboard allow you to change some feature
settings to suit your customized system configuration.
Before changing any jumper setting, make sure to read the jumper
descriptions and setting requirements in this section.
1. USB device wake-up (3-pin USBPWR01, USBPWR23)
Set these jumpers to pins 1-2 (Enabled) to wake up the computer
using the connected USB devices. Set to pins 2-3 to disable the USB
wake-up feature. These jumpers are set to pins 2-3 (Disabled) by
default.
The USB device wake-up feature requires a power supply that can
provide at least 1A on the +5VSB lead. If this requirement is not met,
the system does not power up. The total current consumed must NOT
exceed the power supply capability (+5VSB) whether under normal
condition or in sleep mode.
P4B-FX
P4B-FX USB Device Wake-Up
Figure 2-20
USB Device Wake-up Settings
ASUS P4B-FX motherboard user guide
USBPWR01
1 2
2 3
Enabled
Disabled
(Default)
USBPWR23
1 2
2 3
Enabled
Disabled
(Default)
2-17
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