FreeBSD 10.3 BETA1&2 does not boot on Mac Pro 2008

[claudiu vasadi]

Hello all,

While trying to boot 10.3 amd64 uefi disk1 BETA1 and BETA2 iso on a Mac Pro
2008, I get the following message:

BETA1 -
http://s76.photobucket.com/user/da1_27/media/10.3-BETA1_zpswjatgfg2.jpg.html

BETA2 -
http://s76.photobucket.com/user/da1_27/media/10.3-BETA2_zpsfiedhsks.jpg.html

Right after displaying the message I see the Num Lock going off and on and
I can hear the optical unit moving the head a couple of times; after that,
complete silence.

When booting verbose, I get the exact same behavior and message.

Ideas?
-- 
Best regards,
Claudiu Vasadi