Important: If there is a gap between the DIMM and the retaining clips, theDIMM has not been correctly inserted; open the retaining clips, remove theDIMM, and then reinsert it.ResultsIf you have other devices to install or remove, do so now. Otherwise, go to“Completing the installation” on page 79.Installing an additional microprocessor and heat sinkUse this information to install an additional microprocessor and heat sink.About this taskThe following notes describe the type of microprocessor that the server supportsand other information that you must consider when you install a microprocessor:v The server supports Intel scalable multi-core microprocessors which are designedfor the LGA 2011 socket. Scalable up to ten cores with an integrated memorycontroller, quick-path interconnect and shared last cache. Seehttp://www.ibm.com/systems/info/x86servers/serverproven/compat/us/ for alist of supported microprocessors.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-947.ibm.com/support/entry/portal/overview.2. Under Product support, click System x.3. Under Popular links, click Software and device drivers.4. Click System x3650 M4 BD to display the matrix of downloadable files forthe server.v (Optional) Obtain an SMP-capable operating system. For a list of supportedoperating systems and optional devices, see http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/.v To order additional microprocessor optional devices, contact your IBM salesrepresentative or IBM 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.66 System x3650 M4 BD Type 5466: Installation and Service Guide