a. Touch the static-protective package that contains the memory card to anyunpainted surface on the outside of the server; then, remove the memorycard from the package.b. Open the levers on the top of the memory card.c. Place the memory card on a flat, static-protective surface, with the DIMMconnectors facing up.d. Install DIMMs in the memory card (see “Installing DIMMs”).6. Add the memory card.Attention: When you move the memory card, do not allow it to touch anycomponents or structures inside the server.a. Grasp the memory card by the retention levers and turn the memory card sothat the connector aligns with the connector on the microprocessor boardand the guides on the chassis.b. Insert the memory card into the memory-card connector.c. Press the memory card into the connector and close the retention levers.d. Slide the blue release latch to the locked position.If you have other devices to install or remove, do so now. Otherwise, go to“Completing the installation” on page 71.Installing DIMMsDIMMs must be installed in pairs of the same type and speed. For you to use thememory mirroring feature, all the DIMMs that are installed in the server must be thesame type and speed, and the operating system must support memory mirroring.The following instructions are for installing one pair of DIMMs. To install DIMM pairson more than one memory card, repeat steps 3 though 7 for each memory card.To install a DIMM, complete the following steps:1. Read the safety information that begins on page vii and “Installation guidelines”on page 32.2. Turn off the server and peripheral devices, and disconnect the power cordsand all external cables as necessary to replace the device.3. Remove the server top cover (see “Removing the top cover” on page 37).64 IBM System x3850 X5 and x3950 X5 Types 7145 and 7146: Installation and User’s Guide
