u/Common-Proof6553

Ever since I’ve had this laptop, it has constant freezes and graphical artifacts. I lost the original charger (240 W) and have been using a 90W charger as a replacement. I recently called dell technical support and they said that running the laptop on a lower wattage charger was the issue. I was wondering if anyone else has had similar issues? I find it hard to believe that a laptop cannot function without a charger.