Notes:1. The server comes with one microprocessor installed in microprocessor socket 1on the system board. The microprocessor in socket 1 is the startup (boot)microprocessor. If installed, microprocessor 2 is in socket 2, microprocessor 3 isin socket 3, and microprocessor 4 is in socket 4.Important: If only one microprocessor is installed in the server, it must reside insocket 1.2. If more than one microprocessor is installed, the highest-numberedmicroprocessor is the one from which the server starts. The lower-numberedmicroprocessors are used as application microprocessors.If you want to install additional microprocessors, populate the microprocessorsockets in numeric order, starting with socket 2. The following illustration shows thelocations of the microprocessor sockets and VRMs on the system board.Note: If you install the microprocessors in the wrong order, the server will notpower on.Microprocessorconnector 1 (U11)Microprocessorconnector 2 (U23)Microprocessorconnector 3 (U12)Microprocessorconnector 4 (U22)Microprocessor 4VRM connector(J29)Microprocessor 2VRM connector(J30)Microprocessor 1VRM connector(J2)Microprocessor 3VRM connector(J3)Complete the following steps to install a microprocessor:Notes:1. Read the information in “Before you begin” on page 71.2. Read the safety precautions at “Safety notices (multilingual translations)” onpage 149.3. Read the material at “Handling static-sensitive devices” on page 148.1. Turn off the server, disconnect all power cords and external cables, remove thetop cover (see “Removing the server top cover and bezel” on page 72).Attention: When you handle Electrostatic Discharge-Sensitive devices (ESD),take precautions to avoid damage from static electricity. For details on handlingthese devices, see “Handling static-sensitive devices” on page 148.Installing components 87
