IBM eServer xSeries 226 Type 8648 Option Installation Manual page 27

Important: Although the server supports a maximum of 8 GB of system
memory, some Microsoft Windows operating systems recognize and support only
a lesser amount of system memory, as shown in the following table.
Windows operating system
Windows Server 2003, Web Edition
Windows Server 2003, Standard Edition
v The memory controller in the computer provides Chipkill
the DIMMs are 1 GB or larger, or if the computer is populated with 512 MB x4
DIMMs. Chipkill memory protection is a technology that protects the computer
from a single chip failure on a DIMM.
v The amount of usable memory is reduced depending on the system
configuration. A certain amount of memory must be reserved for system
resources. The BIOS displays the total amount of installed memory and the
amount of configured memory.
Complete the following steps to install a DIMM:
1. Read the safety information beginning on page v and "Installation guidelines" on
page 7.
2. Turn off the server and peripheral devices, and disconnect the power cords and
all external cables.
3. Remove the side cover (see "Removing the side cover" on page 10).
4. Remove the support bracket (see "Removing and installing the support bracket"
on page 12).
5. Open the microprocessor air baffle (see "Opening and closing the
microprocessor air baffle" on page 12).
6. Locate the DIMM connectors on the system board (see "System-board option
connectors" on page 6 for the location of the DIMM connectors). Determine the
connectors into which you will install the DIMMs.
7. Install the DIMMs in the sequence shown in the notes at the beginning of this
section.
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, open and close the clips gently.
a. Open the retaining clips and, if necessary, remove any existing DIMM.
b. Touch the static-protective package containing the DIMM to any unpainted
metal surface on the server. Then, remove the new DIMM from the package.
c. Turn the DIMM so that the DIMM keys align correctly with the slot.
d. Insert the DIMM into the connector by aligning the edges of the DIMM with
the slots at the ends of the DIMM connector. Firmly press the DIMM straight
Maximum memory supported
2 GB
4 GB
™
memory protection if
Chapter 2. Installing options
15