Lenovo ideacentre AIO 510-23ISH - Is freezing up while browsing my photos, using photoshop, and surf

I just purchased the ideacentre AIO 510-23ISH and have had immediate problems with freezing. I've had a lenovo tech check it out twice. It seems to freeze when not in use occasionally. I'm kinda conceed about this turbo boost option. 

Anyone else have issues with this machine?