Dell PowerEdge 4300 Dell PowerEdge 4300 System Board Upgrade Installation - Page 4

1. Turn off your computer and any peripherals. 2. Ground yourself by touching an unpainted metal surface on the chassis, such as the metal around the card-slot openings at the back of the computer, before touching anything inside your computer. While you work, periodically touch an unpainted metal surface on the computer chassis to dissipate any static electricity that might harm internal components. 3. Disconnect your computer and peripherals from their power sources. Also, disconnect any telephone or telecommunication lines from the computer. Doing so reduces the potential for personal injury or shock. In addition, take note of these safety guidelines when appropriate: ‡ 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 the locking tabs before disconnecting the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, make sure both connectors are correctly oriented and aligned. ‡ Handle components and cards with care. Don’t touch the components or con- tacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a microprocessor chip by its edges, not by its pins. 5HPRYLQJWKH6\VWHP%RDUG Removing the system board of a PowerEdge 4300 system involves the following activities: ‡ Disconnecting power ‡ Removing expansion cards ‡ Removing the covers ‡ Removing the system board tray ‡ Removing the system board 'LVFRQQHFWLQJ3RZHU To disconnect power from a PowerEdge 4300 system, perform the following steps : 1. Disconnect the power cable from the electrical outlet, and then disconnect the other end of the cable from the power supply. 2 Dell PowerEdge 4300 System Board Upgrade Installation