Salt the ribeye roast and leave it at room temperature for 45 minutes. Meanwhile, prepare the smoker and preheat it to 225 degrees
Mix thyme, sage, garlic powder, and black pepper together. Sprinkle it evenly on all sides of the roast, using your fingertips to press it into the meat gently
Place roast rib side down into the smoker. Set a timer for 5-6 hours
Remove roast when it reaches 110-115 for medium rare
Preheat the broiler to 500 degrees
Place the roast under the broiler for 2-5 minutes. Check that its temperature reaches 120-125 degrees if cooking to medium rare. Otherwise, follow the temperature chart above
Cover the roast loosely with foil and leave at room temperature to rest for 10-15 minutes before slicing