Question: is 300w enough for gtx 1050?
Answer: “Is 300W PSU enough for 8GB RAM, i7-2600 and GTX 1050 TI?” The PSU should be just enough. As others have mentioned check the +12V rail on the chart taped to your power supply. If it cannot take most of it's wattage on just the 12V rail I wouldn't recommend it.