IGBT
Lifer
..sorry for your problems..I think I would have left the retail HS in place and simply looked for a way to increase air flow thru the box ie.better intake/exhaust fan. If your syst.air flow is low a new/better cpu heatsink prob.wont help much. When I apply Artic Silver I dab it on wit a tooth pic and spread it wit a razor blade..I never make an Oreo oozeer. Good luck.