Chapter 2 Installation and Configuration© National Instruments Corporation 2-25 NI PXI-8108 User ManualInstalling an OSNI PXI-8108 controllers include a pre-installed OS. In some cases, youmay want to install a different OS. When doing so, consider the followingguidelines.Installing from a CD-ROMThe NI PXI-8108 supports the installation of Windows XP and Vista froma USB CD-ROM.As an alternative to a USB CD-ROM drive, you can use an external SCSICD-ROM with a PXI-SCSI adapter.Note For additional assistance with installing or changing an operating system, refer toKnowledgeBase 2ZKC02OK at ni.com/support.ExpressCardThis section provides information on the installation and removal ofExpressCard modules.Installing an ExpressCardYou can install an ExpressCard module while the NI PXI-8108 is running.The NI PXI-8108 will automatically detect the card. ExpressCards aregenerally marked with a symbol or a label to indicate which end to insertinto the slot. The cards are keyed to prevent incorrect insertion.To install an ExpressCard, complete the following steps.1. Hold the card so the top side is facing left.2. Insert the card until it is completely seated in its connector. Theconnector has an automatic eject mechanism. If you insert the card andit is ejected, simply re-insert the card until it is seated.If you encounter too much resistance, do not force the card. Check the cardorientation and try again.The PXI-8108 will automatically recognize the ExpressCard and load theappropriate driver(s). Third-party cards may require that you installadditional drivers. Contact your ExpressCard vendor for more information.