File USB 3.0 transfer is intermittent

Hello!

I have a Pavilion dv6 7090el on which I have installed 8 64-bit Windows (there were 7 as I bought it).
In recent months, I have an external HD: it's a Buffalo HD-LBU3 with usb 3.

When I plug it into the USB 2 port it works fine, bot if I try to transfer files on it from my laptop computer connecting to the external hard drive via USB 3.0, it will intermittently. It copies for a while, then stops and it transfers drops of speed to 0 for a while, then it turns on again, it transfers a bit and stops, and so on, like this:

And at the end of the day the copy is slower than with the usb 2.

This happens with all 3 ports USB 3.0 laptop. If I plug in a USB 2.0 to them, file transfer works very well (obviously not at the speed of usb 3.0, but at least she's not intermittent).

BIOS and all drivers are up to date (according to HP support assistant).

Under the same conditions, with linux mint 14, file transfer works very well, faster than 60 MB/s from the beginning to the end without "at rest."

Could you help me solve this problem?

Thank you!

David

Hello

You may need to update the driver USB 3.0 for your laptop. Use the Device Manager to see what is the manufacturer and will show PCI\VEN information. Once you do that maybe we can find a updated driver for Windows 8.  It is interesting that I do not see it is available for Windows 7. Have you updated your chipset drivers by using the driver that is available on the HP web supports the portal? If the USB 3.0 port is part of the Intel chipset, then maybe it's where is the problem.

You may also consider upgading firmware for your Buffalo external drive that can be found on its web support document.

Best regards

ERICO

Tags: Notebooks

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