HP ProBook 450 G1 Notebook PC - Manual (Page 64)

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.
8. Replace the hard drive door. (See Replacing or upgrading the hard drive on page 41 .)
9. Replace the battery and the service cover. (See Inserting or removing the battery on page 32 .)
10. Turn the computer right-side up, and then reconnect AC power and external devices to the
computer.
11. Turn on the computer.
54 Chapter 9 Memory modules