Bootable USB problem with Asus M3N78-SE

[unregistered tech]

In BIOS I see usb as first bootable device, when PC restart with saved settings USB / WIndows 7 Instalation doesn't start.
USB is Kingston 16GB 3.0, and W7 was created with rufus and I tried with Yumi. Working well on my hp laptop. I tried with usb 2.0 kingston.
Any help / suggestions?

 

[CountMike]

Use just USB2 on USB2 port, W7 and probably your BIOS can't boot from USB3 because of drivers.

 

[unregistered tech]

I try all rdy that Mike. I have usb Kingston 3.0 first try on PC and dont work, then I try same USB 3.0 on my laptop on 3.0 port and work.
I use then other USB 2.0 with rufus for bootable Windows 7 it's doesn't work again
I read about Secure boot , but cannot find that in this bios.

 

[CountMike]

Secure boot exists only on UEFI platform.
Is there a separate setting for USB boot in the bios. Like USB-FDD, USB-CD, USB-HDD ? this last one should be used.

 

[unregistered tech]

I solve this, it's a bag. 3 or 4 restarts and USB 3.0 Kingston with same instalation work