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Dell P2724DEB Service Manual page 32

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Universal Serial Bus (USB) speci c problems
Speci c
What you
Symptoms
experience
USB interface is
USB peripherals
not working
are not working
super speed
super speed
USB 3.2 Gen1
USB 3.2 Gen1
interface is
peripherals
slow.
working slowly or
not working at all
Wireless USB
Wireless USB
peripherals stop
peripherals
working when a
responding
USB 3.0 device
slowly or only
is plugged in
working as
the distance
between itself
and its receiver
decreases
6. Trouble Shooting Instructions
Possible solutions
• Check that your display is turned ON.
• Reconnect the upstream cable to your
computer.
• Reconnect the USB peripherals (downstream
connector).
• Turn o the monitor and turn it on again.
• Reboot the computer.
• Certain USB devices such as portable hard
drives require higher power source; connect
the drive to the computer directly.
• Check that your computer is USB 3.0-capable.
• Some computers have USB 3.0, USB 2.0, and
USB 1.1 ports. Ensure that the correct USB port
is used.
• Reconnect the upstream cable to your
computer.
• Reconnect the USB peripherals (downstream
connector).
• Reboot the computer.
• Increase the distance between the USB 3.0
peripherals and the wireless USB receiver.
• Position your wireless USB receiver as close as
possible to the wireless USB peripherals.
• Use a USB-extender cable to position the
wireless USB receiver as far away as possible
from the USB 3.0 port.

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