5 Removal and replacement procedures for
authorized service provider parts
IMPORTANT: Components described in this chapter should be accessed only by an authorized service
provider. Accessing these parts can damage the computer or void the warranty.
IMPORTANT: This computer does not have user-replaceable parts. Only HP authorized service providers
should perform the removal and replacement procedures described here. Accessing the internal part could
damage the computer or void the warranty.
Component replacement procedures
NOTE: Details about your computer, including model, serial number, product key, and length of warranty,
are on the service tag at the bottom of your computer. See for details.
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
There are as many as 48 screws that must be removed, replaced, and/or loosened when servicing the parts
described in this chapter. Make special note of each screw size and location during removal and replacement.
Preparation for disassembly
See Removal and replacement procedures preliminary requirements on page 24 for initial safety procedures.
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
Bottom cover
Table
5-1 Bottom cover description and part number
Description Spare part number
Bottom cover L70754-001
Before removing the bottom cover, follow these steps:
▲ Prepare the computer for disassembly (Preparation for disassembly on page 29).
Remove the bottom cover:
1. Remove the four Torx T5 2.0 × 7.0 screws (1) and loosen the captive Torx screw (2) that secures the
bottom cover to the computer.
Component replacement procedures 29
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