HP ENVY 15 Maintenance And Service Manual page 75

Before removing the system board, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
a. Service door (see
b. mSATA SSD (see
c. Hard drive (see
d. Base enclosure (see
e. Display assembly (see
f. Fan (see Fan on page
NOTE: When replacing the system board, be sure that the following components are removed from
the defective system board and installed on the replacement system board:
●
Memory module (see
●
Heat sink (see Heat sink on page
●
Processor (see Processor on page
Battery on page 40), and then remove the following components:
Service door on page
mSATA SSD on page
Hard drive on page 45)
Base enclosure on page
Display assembly on page
62)
Memory module on page
69)
74)
41)
42)
52)
54)
47)
Component replacement procedures 65