IBM IntelliStation M Pro Installation Manual page 39

a list of supported 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.
Complete the following steps to install a DIMM:
1. Read the safety information beginning on page v, and the guidelines in
"Handling static-sensitive devices" on page 11.
2. Turn off the computer and all attached devices (see "Turning off the computer"
on page 43); then, disconnect all power cords and external cables.
3. Remove the cover (see "Removing the cover" on page 14).
4. Remove the support bracket (see "Removing and installing the support
bracket" on page 14).
5. You might find it easier to install memory modules if you 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
1 DIMM
2 DIMMs
4 DIMMs
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,
Slots
1
1, 3
1, 2, 3, 4
Chapter 2. Installing the hardware
19