On 10/8/2014 5:27 AM, Hans Petter Selasky wrote:

If you plug the device after boot, what happens then?

What speed does the BIOS enumerate the device at?

Have you checked for USB related BIOS settings?

Hmmm, I could not recreate the issue at first!! I tried both a soft and cold boot, and with and without a CF in it and it would always come up as USB3....

And then I remember setting the BIOS option

Make USB Non Bootable (Enable/Disable)

so it would not try and boot from the flash.

Once I set that to enable, so it could not boot from a USB device, the CF Reader/Writer always probes as USB3 speed! When its disabled, at boot time it probes as USB2 speeds until I disconnect / reconnect.



Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada   http://www.tancsa.com/
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