Removing the I/O Board | 41Removing the I/O Board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. After working inside your comput er, follow the instructions in "After Working Inside Your Computer" on page 9. For additional safety best practices information, see the Regulato ry Compliance Homepage at dell.com/regulatory_compliance.Prerequisites1Remove the battery. See "Removing the Batt...