HP ProBook 450 G2, Maintenance And Service Manual, Page: 49 / 169

Service door
Description Spare part number
Service doors (includes large and small service door) 768134-001
Before removing the service door, 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 36 ).
To remove the service door:
1. With the battery bay away from you, loosen the service door screw (1). The service door screw secures
both service doors.
2. Slide the larger service door away from the battery bay (2) to remove it.
NOTE: The larger service door provides access to the hard drive and memory modules.
Component replacement procedures 37