Back to Contents PageSystem BoardDell™ Studio XPS™ 9100 Service ManualRemoving the System BoardReplacing the System BoardEntering the Service Tag in the BIOSRemoving the System Board1. Follow the instructions in Before You Begin.2. Remove the computer cover (see Removing the Computer Cover).3. Push the tab on the expansion card retainer to release it from the alignment bar and pivot it away from the chassis.4. Remove the screw that secures the alignment bar to the chassis.5. Lift the alignment bar up and out of the chassis.6. Remove any PCI and PCI Express cards, if applicable (see Removing PCI and PCI Express Cards).7. Remove the processor fan and heat sink assembly (see Removing the Processor Fan and Heat Sink Assembly).8. Remove the processor (see Removing the Processor).WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety bestpractices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.WARNING: Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.)removed.CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell™is not covered by your warranty.1 alignment bar 2 expansion card retainer3 screw