v Both microprocessors must have the same QuickPath Interconnect (QPI) linkspeed, integrated memory controller frequency, core frequency, power segment,cache size, and type.v Read the documentation that comes with the microprocessor to determinewhether you must update the server firmware for the server. To download themost current level of server firmware and many other code updates for yourserver, complete the following steps:1. Go to http://www.ibm.com/systems/support/.2. Under Product support, click System x.3. Under Popular links, click Software and device drivers.4. Click System x3500 M2 to display the matrix of downloadable files for theserver.v (Optional) Obtain an SMP-capable operating system. For a list of supportedoperating systems and optional devices, see http://www.ibm.com/servers/eserver/serverproven/compat/us/.v To order additional microprocessor optional devices, contact your IBM marketingrepresentative or authorized reseller.v The microprocessor speeds are automatically set for this server; therefore, youdo not have to set any microprocessor frequency-selection jumpers or switches.v If you have to replace a microprocessor, call for service.v If the thermal-grease protective cover (for example, a plastic cap or tape liner) isremoved from the heat sink, do not touch the thermal grease on the bottom ofthe heat sink or set down the heat sink.v Do not remove the first microprocessor from the system board to install thesecond microprocessor.v Some models support dual-core processors and quad-core processors. Do notuse dual-core processors and quad-core processors in the same system. Installall dual-core or all quad-core processors in the server.The following illustration shows the microprocessor socket locations on the systemboard.Chapter 2. Installing optional devices 67
