6 Upgrading your computer60English To remove a memory module:1 Observe the ESD precautions described on page 48.2 Lay the system on its side (components showing).3 Press the holding clips on both sides of the DIMM slot outward to releasethe DIMM (1).4 Gently pull the DIMM upward to remove it from the DIMM slot (2).5 If you intend to install a new memory module, proceed to the next sectionfor related procedure, then observe the post-installation instructionsdescribed on page 49.To install a memory module:Note: DIMM slots on the mainboard must be installed only in certainconfigurations. Numbers next to DIMM slots correspond to installationsequence. DIMMs may be installed in pairs and in the correct order. See thepopulation sequence table on page 59.1 Perform steps 1 and 2 of the previous section.2 Select an empty DIMM slot.3 Open the holding clips on the DIMM slot.If you are replacing an existing DIMM, install the new DIMM in the sameslot where you removed the DIMM.If you are adding a new DIMM, note that the system supports dual channelconfiguration. The total size of the DIMMs installed in the channel A slotsmust match the total size of the DIMMs in channel B slots.4 Remove the new DIMM from its protective packaging, handling it by theedges.
