Failure to detect recently installed hardware is a frequent issue. This can happen for a number of reasons, including outdated drivers, incorrectly seated cards in slots, or even BIOS settings that require adjusting. If the operating system isn'tsuper spin slots recognizing a recently installed card, users should first make sure the card is firmly inserted into its slot and that all necessary power connections have been made. Conflicts between several expansion cards or between an expansion card and onboard components are another common problem. For example, performance may substantially deteriorate if two graphics cards are installed in SLI (Scalable Link Interface) mode but are not properly configured in the BIOS or through software settings.