IBM IntelliStation A Pro 6224 User Manual page 71

v The microprocessor option kit comes with a microprocessor board, a
microprocessor socket, the microprocessor, a fan sink, and a microprocessor air
baffle. The necessary screws and the microprocessor socket are preinstalled on
the microprocessor board.
v Each microprocessor contains a memory controller for the memory modules that
are associated with it.
v You must install at least one pair of matched DIMMs on the microprocessor
board with the microprocessor. The DIMMs in each pair must be the same size,
speed, type, and technology as each other but do not have to match other pairs.
See "Installing memory modules" on page 53 for information about the installation
order and the type of DIMMs that are supported.
v With more than one microprocessor, the computer can operate as a symmetric
multiprocessing (SMP) computer. With SMP, certain operating systems and
application programs can distribute the processing load among the
microprocessors. This enhances performance for database and other
applications.
v To use SMP, obtain an SMP-capable operating system. For a list of supported
operating systems, go to http://www.ibm.com/pc/us/compat/.
v Read the documentation that comes with the microprocessor to determine
whether you need to update the computer basic input/output system (BIOS)
code. The most current level of BIOS code for the computer is available from
http://www.ibm.com/pc/support/.
v For a list of supported microprocessor options for your computer, go to
http://www.ibm.com/pc/; then, select your country and navigate to the list of
options for your computer
Before you begin, obtain the following items:
v A Phillips-head screwdriver
v A flat-blade screwdriver or a nut driver
Complete the following steps to install a second microprocessor.
Note: For clarity, the illustrations in this procedure show only the system board.
You will not remove the system board from the computer to perform this procedure.
1. Read the safety information beginning on page vii, and the guidelines in
"Handling static-sensitive devices" on page 33.
2. Turn off the computer and all attached devices (see "Turning off the computer"
on page 19).
3. Disconnect all external cables and power cords; then, remove the side cover
(see "Removing the side cover" on page 37.)
4. Remove the support bracket (see "Removing and installing the support
bracket" on page 38).
5. Remove the rear adapter-retention bracket.
6. Touch the static-protective package containing the microprocessor board to
any unpainted metal surface on the computer. Then, remove the
microprocessor board from the package.
Chapter 4. Installing options
57