HP EliteBook 840 G1 Notebook PC - Manual (Page 79)

c. Gently press the memory module (3) down, applying pressure to both the left and right
edges of the memory module, until the retention clips snap into place.
CAUTION: To prevent damage to the memory module, be sure that you do not bend the
memory module.
7. Replace the service door (see Removing or replacing the service door on page 49 ).
8. Insert the battery (see Inserting or removing the battery on page 38 ).
9. Connect AC power and external devices to the computer.
10. Turn on the computer.
Cleaning your computer
Cleaning products
Use the following products to safely clean and disinfect your computer:
● Dimethyl benzyl ammonium chloride 0.3 percent maximum concentration (For example:
germicidal disposable wipes. These wipes come in a variety of brand names.)
● Alcohol-free glass cleaning fluid
● Water with mild soap solution
Cleaning your computer 69