Clean all card edge connectors with DeOxit contact cleaner. It is a miracle in a can. Used to service 42 SPs in humid warehouse. Corrosion was a real issue causing daily calls. Started using DeOxit on all connections and dropped 80% of service calls. Miracle in a can. Available at Crown dealers. Some Radio Shacks. Google it!
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.