IBM IntelliStation M Pro 6230, User Manual, Page: 68 / 166

1. Read the safety information beginning on page vii and the guidelines in
“Handling static-sensitive devices” on page 29.
2. Turn off the computer and all attached devices (see “Turning off the computer”
on page 20); then, disconnect all power cords and external cables.
3. Remove the cover (see “Removing the cover” on page 33).
4. Remove the support bracket (see “Removing and installing the support
bracket” on page 33).
5. For easier access to the memory modules, rotate the drive cage out of the
computer. Grasp the drive cage and rotate it until it locks into place.
6. Locate the DIMM connectors on the system board. Determine the connectors
into which you will install the DIMMs. Remember, DIMM 1 and DIMM 3 must
be paired together (and must be the first pair installed) and DIMM 2 and DIMM
4 must be paired together. The following illustration shows the DIMM
installation sequence.
Memory installation sequence
DIMMs Slots
1 DIMM 1
2 DIMMs 1, 3
4 DIMMs 1, 2, 3, 4
7. Open the retaining clips and, if necessary, remove any existing DIMM.
8. Touch the static-protective package containing the DIMM to any unpainted
metal surface on the computer. Then, remove the new DIMM from the
package.
9. Gently open the retaining clip on each end of the DIMM slot. Turn the DIMM
so that the pins align correctly with the connector.
10. Insert the DIMM into the connector. Firmly press the DIMM straight down into
the connector by applying pressure on both ends of the DIMM simultaneously.
The retaining clips snap into the locked position when the DIMM is firmly
seated in the connector. If a gap exists between the DIMM and the retaining
clips, the DIMM has not been correctly installed. Open the retaining clips,
46
IBM IntelliStation M Pro Types 6220 and 6230: User’s Guide