Mega Drive Overview (Sega Mega-Tech) Updated Mar 15, 2026 · 3 min read · Support · 0 viewing 🔥 Most active page right now Previous 📄 Boot Up Behaviour (Sega Mega-Tech Arcade) Applying 5V to the 5V rail should get the Mega Tech booting up. Power draw should be around 1.8 to 2... Next Powering From Bench (Sega Mega-Tech) The Sega Mega-Tech is powered from the pin headers at the top right . It has two main rails:- a ...