Reboot AND sélect proper device to boot

[typologie]

Hi everybody,

I am French so sorry for my bad English.

I'm building a NAS with 6 HDD sata2 connected and an other one Sata3 on which I installed Freenas.

My problem is: If I boot the computer when the 6 HDD are connected, I can't start on the Freenas HDD (I have the following message : Reboot and select proper device to boot)

When I try to start the computer without the 6 HDD (only with the freenas HDD) there is no problem freenas is launched.

I have the same problem if I use a usb key on which freenas is installed.

My motherboard is an asus rampage III extreme.

Can you help me?
Thks
Best regards

 

[William Grzybowski]

Just select the boot device order in your BIOS?