Need help, I bought a new computer from the local computer shop [View all]

Heres what I bought
Intel DH87RL UATX
Intel core I-5-4430 3GHZ Processor
8 gig Crucial Memory DDR3 1333

I have a kingston V300 SSD I put in it. I didn't buy a hard drive with this as I am going to use this SSD to put my operating system on
I put ubuntu 12.04 64 bit on the SSD and when I go to restart it won't restart. I press the f10 key which gets me to the boot menu. On this boot menu my SSD is the last one listed and when I select it the computer just sets there. I have a usb 500 gig toshiba hard drive I connected to the usb port and loaded 12.04 on it and that is what I'm using right now to post this but its slower than smoke off shit and not what I want to use.

What I need to know is how in the hell do I set my boot order so this thing will act like every other computer I've ever owned, which is a bunch of them btw.
I was told that I can install a 32 bit version of whatever linux I want. The reason I want to use 32 bit is because of AutoCad 2000 won't run under a 64 bit system. Yes I run AutoCad 2000 using Wine.

DVD drive and all the gizmos, card readers, on the front panel
Nice case and all that.

Would someone help me figure out how to set my boot order so I can load my operating system to the SSD and boot to it when I turn the computer on?

Thanks in Advance.

Link to my motherboard manual. http://www.manualslib.com/manual/549893/Intel-Dh87rl.html?page=2#manual


Been saving my beenies for a while to upgrade to this computer and now I'm stuck.