hi, i've upgrade my imac 27 2012 a ssd owc aura 480gb, not the pro one, i did see any thermo sensor to attach, but after use for a while, my imac start to restart itself sevral times a day, and the the fans turn on for longtime before it begame quit, it's really a headache, anyone met the same problem? do i need to change my fan or change the aura ssd? what's the direction please? thank you all.