April 2006To remove baseboard DIMMs1. Prepare the server for DIMM replacement as follows:a. Shut down the server, and then disconnect the power and peripheral device cables.b. Place the server on its side.c. Remove the side cover..WARNINGRisk of personal injury or equipment damageFailure to follow the procedures in “Preparing the server for hardwaremaintenance” on page 96 can result in electrical shock or equipmentdamage.2. Gently push the DIMM socket’s plastic ejector levers out and down to eject a DIMM from itssocket..CAUTIONRisk of equipment damageUse extreme care when removing a DIMM. Too much pressure candamage the socket slot. Apply only enough pressure on the plasticejector levers to release the DIMM.3. Hold the DIMM only by its edges; be careful not to touch its components or gold-edgeconnectors. Carefully lift it away from the socket, and store it in an antistatic package.4. Repeat to remove other DIMMs as necessary.5. If you are replacing a DIMM, continue with “To install baseboard DIMMs” below.To install baseboard DIMMs.CAUTIONRisk of equipment damage and data corruptionUse only Nortel Networks-approved DIMMs. A mixture of dissimilarmetals (from the use of non-approved DIMMs) can cause latermemory failures, resulting in data corruption .1. Prepare the server for DIMM installation.WARNINGRisk of personal injury or equipment damageFailure to follow the procedures in “Preparing the server forhardware maintenance” on page 96 can result in electrical shockor equipment damage.2. Hold the DIMM only by its edges when you remove it from its antistatic package.3. Compare the length of the gold edge connectors on the DIMM with the socket, and align themaccordingly.4. Press the DIMM firmly down until it clicks into place inside the socket.Nortel Hospitality Messaging Server 400 -130-Maintenance Guide