Two USB 3.0 Devices Cannot be Attached at the Same Time on Some Notebooks

Two USB 3.0 Devices Cannot be Attached at the Same Time on Some Notebooks


This article provides information on the issue where two USB 3.0 devices cannot be attached at the same time on some notebooks - Inspiron 14R N4110, Inspiron 15R N5110, Inspiron 17R N7110, Vostro 3450, Vostro 3750, XPS L502X and XPS L702X



Two USB 3.0 Devices Cannot be Attached at the Same Time

If two USB 3.0 devices (such as external HDDs) are attached via the USB 3.0 ports, after a period of time BOTH USB 3.0 ports will shut down. At times this occurs very quickly, other times it takes 10-15 min. Once this occurs, both devices will be inaccessible and may disappear from the listings of drives in the Computer window.

In some cases, removing and reattaching the devices may restore USB 3.0 port function. Sometimes the computer needs to be restarted before USB 3.0 port function returns. Before the restart, both devices will need to be detached from the computer.


Update Drivers

Verify that the BIOS and USB 3.0 drivers are the latest available from Dell Drivers and Downloads . Visit our complimentary article for more information on How to Use the Drivers and Downloads Website.



Article ID: SLN290038

Last Date Modified: 04/06/2018 05:53 AM


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