Dell Vostro 220s - Recommended Tools; Before Working on Your Computer

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Working on Your Computer
Dell™ Vostro™ 420/220/220s Service Manual
Recommended Tools
Before Working on Your Computer
Inside View of Your Computer
System Board Components
After 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.
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.
NOTICE: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some
cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the
locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to
avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are
correctly oriented and aligned.
NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside