asrock 880g extreme3: are usb 3.0 rear ports bootable??

[armageddon1966]

Hi everyone,

my 880GXH/USB3 passed away a couple of days ago. I was thinking to replace it with 880G extreme 3 but I have a doubt: are USB3.0 rear ports bootable??
With my dear 880GXH/USB3.0 it was impossible to boot by USB3.0 port

thanks in advance for any comment