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Dell P2424HEB Service Manual page 30

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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 Gen
USB 3.2 Gen
1 interface is
1 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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