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RTC battery

Description Spare part number

RTC battery 826388-001

Before removing the RTC battery, follow these steps:

1. Shut down 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 all external devices connected to the computer.

3. Disconnect the power from the computer by rst 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 32).

5. Remove the following components:

a. Service doors (see Service doors on page 33).

b. Optical drive (Optical drive on page 35)

c. Hard drive (see Hard drive on page 37)

d. Keyboard (see Keyboard on page 43)

e. Top cover (see Top cover on page 48)

f. System board (see System board on page 66)

Remove the RTC battery:

1. Position the system board upside-down.

2. Use a tool to pry the battery out of the socket (1).

68 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts

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HP ProBook 455 G3 Specifications

General

Processor	AMD A10-8700P
Display	15.6-inch diagonal HD SVA anti-glare LED-backlit (1366 x 768)
RAM	Up to 16GB DDR3L
Storage	500GB, 1TB HDD or 128GB, 256GB SSD
Graphics	AMD Radeon R6
Operating System	Windows 10 Pro
Battery	Li-ion
Ports	2 USB 3.0, 2 USB 2.0, 1 HDMI, 1 RJ-45, 1 VGA, 1 headphone/microphone combo
Wireless	802.11a/b/g/n/ac, Bluetooth 4.2