[. . . ] Memory Modules User Guide © Copyright 2007 Hewlett-Packard Development Company, L. P. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. [. . . ] CAUTION Electrostatic discharge (ESD) can damage electronic components. Before beginning any procedure, ensure that you are discharged of static electricity by touching a grounded metal object. NOTE To use a dual-channel configuration when adding a second memory module, be sure both memory modules are the same size. If you are not sure whether the computer is off or in Hibernation, turn the computer on by pressing the power button. Loosen the 2 memory module compartment screws (1). ENWW 1 8. Lift the memory module compartment cover (2) away from the computer. 9. If you are replacing a memory module, remove the existing memory module: a. CAUTION To prevent damage to the memory module, hold the memory module by the edges only. Grasp the edge of the memory module (2), and gently pull the module out of the memory module slot. To protect a memory module after removal, place it in an electrostatic-safe container. 2 Adding or replacing a memory module ENWW 10. Align the notched edge (1) of the memory module with the tab in the memory module slot. CAUTION To prevent damage to the memory module, hold the memory module by the edges only. [. . . ] Tighten the 2 memory module compartment screws (3). ENWW 3 14. Turn on the computer. 4 Adding or replacing a memory module ENWW Index M memory adding memory modules 1 replacing memory modules 1 upgrading memory modules 1 memory module adding 1 inserting 3 removing 2 replacing 1 upgrading 1 memory module compartment cover removing 2 replacing 3 ENWW Index 5 [. . . ]