v Due to space limitations, you must use the microprocessor tool that comes with
the microprocessor, when you install the microprocessor.
v Read the documentation that comes with the microprocessor to determine
whether you have to update the IBM System x Server Firmware (server
firmware). To download the most current level of server firmware, complete the
following steps.
Note: Changes are made periodically to the IBM Web site. The actual procedure
might vary slightly from what is described in this document.
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 IBM System x3850 X5 and x3950 X5 to display the matrix of
downloadable files for the server.
v Obtain an SMP-capable operating system. For a list of supported operating
systems, see http://www.ibm.com/servers/eserver/serverproven/compat/us/.
v You can use the Setup utility to determine the specific type of microprocessor in
the server.
v Microprocessor sockets must always contain either a heat-sink blank or a
microprocessor and heat sink.
v Populate the microprocessor sockets in the following order: 1, 4, 2, and 3. The
following illustration shows the locations of the microprocessor sockets on the
microprocessor board.
Microprocessor 1
Microprocessor 2
Microprocessor 3
Microprocessor 4
Note: If your server has more than two microprocessors installed, you must install
two QPI wrap cards in the server.
To install a microprocessor, complete the following steps:
1. Read the safety information that begins on page v and “Installation guidelines”
on page 25.
2. Turn off the server and peripheral devices, and disconnect the power cords
and all external cables as necessary to replace the device.
3. Remove the server top cover (see “Removing the top cover” on page 30).
56 IBM System x3850 X5 and x3950 X5 Types 7145 and 7146: Installation and User’s Guide
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