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September 22nd, 2017 02:00

CPU usage goes up when connecting USB device to Dell Latitude E6530 USB 3.0 port

Hi.

I have the same problem on a Dell Latitude E6530 from this post : en.community.dell.com/.../20013042

(I cannot answer in the original post, the forum gives me an error).

I use Windows 10 Pro 64 bits (1703).
The BIOS is up to date : version A20 (05/08/2017).

When I plug ou unplug a device on the USB 3.0 ports (right or left port), the System process goes up to ~15% CPU usage. I have to sleep/resume or reboot to have a normal CPU usage.
The CPU usage is taken by the ACPI.sys (found with Windows Performance Recorder).

This problem does not happen with USB 2.0 (rear port) or E-SATA port on right.

What can I do ?

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