What mod are you using ? I don't think it's an rda it's either a defect in the board itself or a 510 issue for me "we think " it's going back to the modder and hope for the best I think it's beyond changing attys or settings man. The only mod I have had that's behaved this poorly is a DNA 40 clone I used once and hates it I knew right away something was wrong . Basically on the data the temp is spiking almost instantly to temp it's supposed to be a smooth gradual arcing increase ..