HP PROBOOK 4520S, Руководство по техническому обслуживанию и ремонту

Страница: 70 / 177

Memory module
NOTE: When adding a second memory module, be sure it is the same type and speed as the
installed memory module.
Description Spare part number
4-GB (PC3-10600, 1333-MHz, DDR3) 599092-001
2-GB (PC3-10600, 1333-MHz, DDR3) 598856-001
1-GB (PC3-10600, 1333-MHz, DDR3) 598859-001
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 55 ).
5. Remove the switch cover and keyboard (see Switch cover and keyboard on page 56 ).
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.)
60 Chapter 4 Removal and replacement procedures