Grain Tests for Sony EX1R: Is this normal?

I recently sent one of my EX1Rs to Sony to be fixed because I thought there was too much noise in the image and nothing I did even after resetting the camera helped with the noise. Is this amount of noise normal? https://www.youtube.com/edit?o=U&video_id=1K3nvtjgXYM

Is there anything I can do to reduce it (bar noise reduction software as thats a little expensive) ? Or do I need more light? the Studio lights are (6) Impact Qualite 300 lights with Softboxes on them and One Qualite 300 behind (back light) with barndoors. I'm thinking about upgrading to Dracast LED1000 Pro or Plus lights. Would that help