Installing an additional microprocessor
The following notes describe the type of microprocessor that the server supports
and other information that you must consider when installing a microprocessor:
v The server supports certain Intel Xeon dual-core or quad-core flip-chip land grid
array 771 (FC-LGA 771) microprocessors, which are designed for the LGA771
socket. See http://www.ibm.com/servers/eserver/serverproven/compat/us/ for a
list of supported microprocessors.
Important: Dual-core and quad-core microprocessors are not interchangeable
and cannot be used in the same server. For example, if the server has a
dual-core microprocessor, you cannot install a quad-core microprocessor as the
second microprocessor. Use the Configuration/Setup Utility program to determine
the type and speed of the microprocessor that is currently installed in the server.
v The server supports up to two microprocessors. If the server comes with one
microprocessor, you can install a second microprocessor.
v Both microprocessors must have the same cache size and type, front-side bus
frequency, and the same clock speed. Microprocessor internal and external clock
frequencies must be identical.
v When you install an additional microprocessor in microprocessor connector 2,
you must also install the voltage regulator module (VRM), which comes with the
microprocessor, in the VRM connector.
v Read the documentation that comes with the microprocessor to determine
whether you must update the basic input/output system (BIOS) code for the
server. To download the most current level of BIOS code and many other code
updates for your server, go to http://www.ibm.com/systems/support/, select
System x3650 from the Hardware list, and click the Download tab.
v (Optional) Obtain an SMP-capable operating system. For a list of supported
operating systems and optional devices, go to http://www.ibm.com/servers/
eserver/serverproven/compat/us/.
v To order additional microprocessors, contact your IBM marketing representative
or authorized reseller.
v The microprocessor speeds are automatically set for this server; therefore, you
do 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) is
removed from the heat sink, do not touch the thermal grease on the bottom of
the heat sink or set down the heat sink.
v Do not remove the first microprocessor from the system board to install the
second microprocessor.
The following illustration shows the microprocessor connector locations and other
microprocessor-related components on the system board.
20 IBM System x3650 Type 7979: Installation Guide
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