Installing System Components 137Installing a ProcessorWARNING: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. Before you begin thisprocedure, review the safety instructions that came with the system.NOTE: In a single-processor configuration, the CPU1 socket must be used.1 If you are adding a second processor for the first time, remove the heat-sink blank and the processor blank from the vacant processor socket.Removing the blanks is similar to removing a processor. See "Removing aProcessor."2 Unpack the new processor.3 Align the processor with the socket keys on the ZIF socket. SeeFigure 3-32.4 Install the processor in the socket.CAUTION: Positioning the processor incorrectly can permanently damage thesystem board or the processor. Be careful not to bend the pins in the socket.a With the release lever on the processor socket in the open position,align the processor with the socket keys and set the processor lightlyin the socket.CAUTION: Do not use force to seat the processor. When the processor ispositioned correctly, it engages easily into the socket.b Close the processor shield.c Rotate the socket release lever down until it snaps into place.5 Install the heat sink.a Using a clean lint-free cloth, remove the thermal grease from the heatsink.CAUTION: Applying too much thermal grease can result in excess grease comingin contact with and contaminating the processor socket.b Open the grease packet included with your processor kit and apply aspot of thermal grease equal to the size of a finger nail to the topcenter of the new processor.c Place the heat sink on the processor. See Figure 3-31.d Close the heat-sink release levers. See Figure 3-31.6 Replace the cooling shroud. See "Installing the Cooling Shroud."
