System Board 113System BoardWARNING: Before working inside your computer, read the safety information thatshipped with your computer and follow the steps in "Before You Begin" on page 11.For additional safety best practices information, see the Regulatory ComplianceHomepage at dell.com/regulatory_compliance.Removing the System BoardNOTE: Your computer’s Service Tag is stored in the system board. You must enterthe Service Tag in the BIOS after you replace the system board.NOTE: Before disconnecting the cables from the system board, note the location ofthe connectors so that you can reconnect them correctly after you replacethe system board.Prerequisites1 Remove the stand. See "Removing the Stand" on page 19.2 Remove the back cover. See "Removing the Back Cover" on page 23.3 Remove the VESA-mount bracket.See "Removing the VESA-Mount Bracket" on page 43.4 Remove the system-board shield.See "Removing the System-Board Shield" on page 495 Remove the memory modules.See "Removing the Memory Module(s)" on page 35.6 Remove the power-supply fan bracket.See "Removing the Power-Supply Fan Bracket" on page 77.7 Remove the B-CAS card. See "Removing the B-CAS Card" on page 25.8 Remove the I/O cover. See "Removing the I/O Cover" on page 81.9 Remove the I/O board shield.See "Removing the I/O Board Shield" on page 85.10 Remove the processor heat-sink.See "Removing the Processor Heat-Sink" on page 65.
