Dell Vostro 220 Service Manual - Page 35

Working on Your Computer This document provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that: • You have performed the steps in "Working on Your Computer" on page 35. • You have read the safety information that shipped with your computer. • When replacing a component, you have already removed the original, if installed. NOTE: The color of your computer and certain computer components may appear differently than shown in this document. Recommended Tools The procedures in this document may require the following tools: • Small flat-blade screwdriver • Phillips screwdriver • Small plastic scribe • Flash BIOS update (see the Dell Support website at support.dell.com) Before Working on Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety. CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. Working on Your Computer 35