HPDM import T630 thin clients populating the unidentified OS tab

I am attemtping to Import a batch of T630's which have ThinPro 7 preinstalled into the HPDM 

I am using the following csv file to import

The import is successful; however, instead of placing them in hte ThinPro 7 OS tab, they get imported into the unidentified tab - which doesn't allow for much functinality. 

Any help would be appricated

our HPDM version is 4.7 SP 10