IBM xSeries 440 8687, Hardware Maintenance Manual

Page: 107 / 258

Microprocessors
This section describes how to install and remove microprocessors and VRMs.
Before performing any of the procedures in this section, read “Safety information”
on page 201, “Handling electrostatic discharge-sensitive devices” on page 204, and
“Installation guidelines” on page 71.
Your xSeries 440 Server supports up to two Intel Xeon DP or four Intel Xeon MP
microprocessors in each SMP Expansion Module. With both SMP Expansion
Modules installed, the server can support a maximum of four Intel Xeon DP or eight
Intel Xeon MP microprocessors of the same type and speed.
Notes:
1. Do not install both Intel Xeon MP and Intel Xeon DP microprocessors in the
same server or SMP Expansion Module.
2. Read the documentation that comes with the microprocessor to determine if you
need to update the server basic input/output system (BIOS) code. For the most
current level of BIOS code for the server, go to http://www.ibm.com/pc/support
on the World Wide Web (see “Recovering BIOS code” on page 66).
3. Obtain an SMP-capable operating system (optional). For a list of supported
operating systems, go to http://www.ibm.com/pc/compat/ on the World Wide
Web.
Attention: To avoid damage and ensure proper server operation after you install
a replacement or an additional microprocessor, use a microprocessor that has the
same cache size and type, clock speed, and internal and external clock frequencies
as the microprocessors already installed in the individual SMP Expansion Module.
For a list of microprocessors supported by the server, see the ServerProven list at
http://www.ibm.com/pc/compat/ on the World Wide Web.
Notes:
1. The microprocessor in socket 1 of the bottom SMP Expansion Module is the
startup (boot) microprocessor.
2. Microprocessor sockets must be populated in numeric order, starting with socket
1. If you install the microprocessors in the wrong order, the server will not power
on.
3. Microprocessor sockets are populated differently according to which
microprocessors are installed:
v Server models that use Intel Xeon DP microprocessors support a maximum
of two microprocessors per SMP Expansion Module, and are installed in
microprocessor sockets 1 and 4.
v
Server models that use Intel Xeon MP microprocessors support a maximum
of four microprocessors per SMP Expansion Module, and are installed in
microprocessor sockets 1 through 4. Always install the heat sink that comes
with the microprocessor.
4. Microprocessor socket 4 contains a microprocessor baffle. Do not remove this
baffle unless you are installing a microprocessor in socket 4. When you install a
microprocessor in socket 4 and remove the baffle, be sure to store the baffle in
a safe place for possible future use.
The following illustration shows the locations of the startup microprocessor and its
VRM on the SMP board. It also shows the microprocessor baffles and the VRM
slots for the other microprocessor sockets.
Installing options
95