Windows cannot be installed to this disk

I have just received a new server which has 4 x 2tb Hard drives which i setup in a raid 10 configuration, after i set this up i noticed on the raid config on the right side that under bootable it says no.

Not sure if this is the problem but i will continue, when i try to load windows server 2008 r2 i can partition the drives but when i select the partition to install on i get this error.'

Windows cannot be installed to this disk. The computers hardware may not support booting to this disk, ensure that the disk's controller is enabled in the computers bios menu.

I have not seen this before and i have setup a few of these units, i go into the bios and there is no mention of disk controller. The configuration is set to raid.