Pricing, specifications, availability and terms of offers may change without notice, are not transferable and are valid only for new purchases from Dell Small Business for delivery in the 50United States. Taxes, fees, shipping, handling and any applicable restocking charges extra, vary, and are not subject to discount. The Small Business site and offers contained herein validonly for end users and not for resellers and/or online auctions. Dell cannot be responsible for pricing or other errors, omissions, or consequences of misuse of site and its functions andreserves the right to cancel orders arising from such errors. Offers not necessarily combinable. Discounts cannot be retroactively applied. Orders subject to cancellation by Dell. Software& Accessories and Printers, Displays & Electronics offers do not apply to Recommended Solutions systems in the online system configuration pages (including PowerConnect switches);you must purchase eligible items through the separate Software & Accessories and Printers, Displays & Electronics online stores. Limit 5 systems and 5 discounted or promotionalproducts per customer. In case of customers leasing under this promotion, please note that items leased will be subject to applicable end of lease options or requirements. All sales aresubject to Dell's Terms and Conditions of Sale located at http://www.dell.com/terms unless you have a separate agreement with Dell.Large Textsn WEB3Before Working Inside Your ComputerUse the following safety guidelines to help protect your computer from potential damage and to help ensure your ownpersonal safety.1. Turn off your computer. See Turning Off Your Computer.2. Disconnect any telephone or telecommunication lines from the computer.3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power buttonto ground the system board.Back to Contents PageCAUTION: Before you begin any of the procedures in this section, follow the safety instructions in theProduct Information Guide.CAUTION: Handle components and cards with care. Do not touch the components or contacts on acard. Hold a card by its edges or by its metal mounting bracket. Hold a component such as aprocessor by its edges, not by its pins.NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicingthat is not authorized by Dell is not covered by your warranty.NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself.Some cables have a connector with locking tabs; if you are disconnecting this type of cable, press in on thelocking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoidbending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly orientedand aligned.NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside thecomputer.NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from thenetwork port or device.NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metalsurface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metalsurface to dissipate any static electricity that could harm internal components.You are here: Dell USA > Support Home Page© 2007 Dell | About Dell | Terms of Sale | Unresolved Issues | Privacy | Contact | Site Map | Visit ID | Feedback TopPage 2 of 2Documentation12/9/2007http://support.dell.com/support/edocs/systems/dim9200/en/SM_EN/before.htm