HP ProBook 4520s HP ProBook 4520s Notebook PC and HP ProBook 4720s Notebook PC - Page 63
Memory module, Remove the memory module - memory slots
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Memory module NOTE: When adding a second memory module, be sure it is the same type and speed as the installed memory module. Description 2-GB (PC3-10600, 1333-MHz, DDR3) 1-GB (PC3-10600, 1333-MHz, DDR3 Spare part number 598701-001 598700-001 Before removing the memory module, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 50). 5. Remove the switch cover and keyboard (see Switch cover and keyboard on page 51). NOTE: It is not necessary to disconnect the keyboard cable from the system board to remove the memory modules. Remove the memory module: 1. Position the computer right-side up with the front toward you. 2. Spread the retaining tabs (1) on each side of the memory module slot to release the memory module. (The edge of the module opposite the slot rises away from the computer.) Component replacement procedures 55