Yes, but you need a 2xxx series CPU to go with it.
Does it have to be mITX? Why not mATX? Suggest you look back at the earlier Buyer's Guides for the 7 series Ivy Bridge boards and try to find one of the recommended boards locally or maybe a used one from Amazon.co.uk or eBay.
Then you have something else wrong. The BIOS settings for the UD3R and the UD7 are same - click on the build in my sig and find the post where I uploaded the BIOS settings and MultiBeast selections and try those. You also need to use either a DSDT that matches your BIOS version or add NullCPU kext to your selections in MultiBeast.
Install drive in new build.
At Chimera screen hit the space bar, type in
-v -f -x
If it boots you to the sign in / desktop, open finder - select /Extra folder, move it to trash - empty trash.
Your Windows 7 did not install correctly. Boot to OS X, erase partition MSDOS FAT title Win7
put the Win7 install media in and shutdown. (note I say shutdown - not reboot)
start up and hit hot key to select boot device - select the NON_UEFI windows installation media.
Hit enter to boot.
At the Windows install screen, select the partition to...