110 Installing System ComponentsInstalling 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 blank is similar to removing a processor. See "Removing aProcessor" on page 107.2 Remove the processor from the packing material by the processor’s edgesonly. Do not touch the bottom of the processor. Handle the processorcarefully with your fingers on the side edges. Place your hand beneath theprocessor when you are moving it to the system.3 Locate the pin 1 indicator on the system board socket.4 Locate the pin 1 indicator on the top of the processor. The pin 1 indicatoris shown as a triangle on the top of the processor. See Figure 3-15.CAUTION: Positioning the processor incorrectly can permanently damage thesystem board or the processor. Be careful not to bend the pins in the socket.5 Place the processor over the socket with each pin 1 aligned and level. SeeFigure 3-14 and Figure 3-15.CAUTION: Do not use force to seat the processor. When the processor ispositioned correctly, it engages easily into the socket.6 Align the notches in the processor with the socket keys on the ZIFsocket. See Figure 3-15.7 Install the processor in the socket. Keep the processor level (seeFigure 3-14) and insert it straight down into the socket. Allow theprocessor to float on the pins, allowing the processor shield to hold it inplace.