Installing System Components 157Installing the System Board1 Align the back connectors on the system board with the cutouts in theback of the chassis. Ensure the system-board tray is square with the chassisso that the securing tabs on the chassis fully insert into the system-boardsecuring slots.2 Slide the system board towards the back of the system until the bluerelease pin locks into place. See Figure 3-44.3 If applicable, install the SAS/SATA backplane. See "Installing theSAS/SATA Backplane" on page 151.4 Install the processor(s). See "Installing a Processor" on page 137.5 Install the memory modules in the same sockets from which they wereremoved. See "Installing Memory Modules" on page 131.6 Install the TOE NIC hardware key, if previously present. See Figure 6-1 forthe TOE_KEY socket location.7 Install the internal USB memory key, if previously present. See "Installingthe Optional Internal USB Memory Key" on page 121.8 If applicable, install the SAS controller card. See "Installing a SASController Card" on page 112.9 If applicable, install the RAC card. See "Installing a RAC Card" onpage 120.10 If applicable, install the expansion cards and any attached cables. See"Installing an Expansion Card" on page 111.11 Depending on your configuration, connect the following cables that youremoved in "Removing the System Board" on page 154. See Figure 6-1 forconnector locations.• Three power-supply cables to the PWR1, PWR2, and PWR3connectors• I/O panel cable to the CTRL-PNL connector• SATA cable(s) to the SATA connector(s)1 system board release pin 2 system board3 system board touch point 4 system board securing slots
