XPS 15, 9570 Freezing problem and Pulsating fan problem

Hello,

I just got my XPS 9570 3 months ago and it started to freeze. There were couple times that the laptop froze in the last months but now the laptop freezes every time I use the laptop. I scanned my laptop in SupportAssist and all tests came out clean. However, when I checked the history, there were a couple red texts that states "Hardware Scan Result(Manual) - Full scan - Abnormal Exit: Video Card - Abnormal Exit". I did another test which resulted in "Hardware Scan Result(Manual) - BSOD - No Device: Video Card- No Device". I don't know if this is the reason for the freezing though. Do you guys have any suggestion? Another thing issue with this laptop is with pulsating fans. There are times that I dont do anything intensive; however, the fan keeps turning on/off in 1 second intervals.

My service tag is .

Thank you