Roma university students' personal networks become unstable in the process of college transition. We describe the personal networks of these students using the model set up by Brandes et al. (in: Proceedings of the IEEE pacific visualization symposium (Pacific Vis'08), IEEE Computer Society Press, 2008) and analyse the identified groups utilizing the social capital approach. We mapped seventy-six students' networks applying contact diary. Origin, host and fellow groups significantly differ in their composition; they provide different ('bonding' or 'bridging') type of resources, and their availability to the Roma students is also different. We found significant differences between the students in their tendency to rely on certain groups in the process of academic adjustment.