I don't know about the G.SKill Trident Z Neo, but i've had my Team Group 8Pack Edition 2x16GB 3600MHz kit running 3800MHz, CAS14, FLCK1900, 1.5V for over a year.
Its perfectly fine, idle its only slightly warm to the touch. TestMem5 0.12 with Extreme1@anta config it runs without errors for hours. Apparently thats a super aggressive RAM testing program too. Those sticks are rated 1.20-1.40v