158 Installing System ComponentsInstalling the System Board Assembly1 Unpack the new system board assembly.2 Grasp the I/O board by its edge and the release pin and lower it into thechassis.3 Position the I/O board to the bottom of the chassis until it lays completelyflat.4 Slide the I/O board toward the back of the system, inserting the connectorsinto the cutouts on the chassis back panel.5 Holding by the handle and a heat-sink release lever (see Figure 3-23), lowerthe processor board into the chassis. Maneuver the processor board to thebottom of the chassis until it lays completely flat.6 Slide the processor board backward so that the guide pins on one half ofthe high-speed connector engages with the holes on the other half of theconnector. See Figure 3-31.7 Push the release levers inward until they lock into position. SeeFigure 3-31.8 If applicable, remove the plastic socket covers or the FlexMem Bridgesfrom the processor sockets. For more information on installing processorsand FlexMem Bridges for different processor configurations, see Table 3-5.9 Replace the processors and FlexMem Bridges as applicable, on the newprocessor board. See "Processors" on page 133 and "Installing a FlexMemBridge" on page 141.NOTE: See Table 3-5 for more information on installing processors and FlexMemBridges for different processor configurations.10 Replace the heat sinks and heat-sink blanks, as applicable. See Table 3-5.11 Replace the memory modules. See "Installing Memory Modules" onpage 105.12 Replace the RAID battery carrier. See Figure 3-21.13 Replace the RAID battery. See "Installing the RAID Battery" on page 130.14 Replace the cable clamp. See Figure 3-10.15 Install the cooling fan assembly. See "Installing the Cooling Fan Assembly"on page 111.