Hello, This is interesting topic that I would like to share and discuss with you.. I came across few projects from various SMT factories where its product(Computer) reach field, experience No Post/boot defect. This problem become very obvious when there is heavy rain. When the affected product returned to SMT factories for verification, they found that this problem cannot be duplicated. However, when they put these affected motherboard into humidity chamber where they set it at 90% hum