IBM IntelliStation Z Pro 6223 Hardware Maintenance Manual And Troubleshooting Manual page 52

v The memory controller in the computer provides Chipkill memory protection if the
v The amount of usable memory is reduced depending on the system
Complete the following steps to install DIMMs:
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IntelliStation Z Pro Types 6223 and 6227: Hardware Maintenance Manual and Troubleshooting Guide
Important: Although the computer supports a maximum of 8 GB of system
memory, the Microsoft Windows operating systems recognize and
support a maximum of 4 GB of system memory.
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.
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.
1. Read the safety information beginning on page 125 and "Handling
static-sensitive devices" on page 23
2. Turn off the computer and all attached devices (see "Turning off the computer"
on page 9); then, disconnect all power cords and external cables.
3. Remove the side cover (see "Removing the side cover" on page 25).
4. Locate the DIMM connectors on the system board. Determine the connectors
into which you will install the DIMMs. See Table 2 on page 41 for additional
information on DIMM-installation sequences.
Table 3. DIMM installation sequence
DIMM pair
First pair
Second pair
Third pair
5. Gently open the retaining clip, if necessary, remove any existing DIMM.
6. Touch the static-protective package containing the DIMM to any unpainted
metal surface on the computer. Then, remove the new DIMM from the
package.
7. Gently open the retaining clip on each end of the DIMM slot. Turn the DIMM
so that the pins align correctly with the connector.
DIMM connectors
1, 2
3, 4
5, 6