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RTC battery

Description Spare part number

RTC battery (includes cable and double-sided tape)

For use on all computer models except those equipped with an AMD A6-5200, AMD A4-5000, or

AMD E1-2500 processor

637193-001

For use only on computer models equipped with an AMD A6-5200, AMD A4-5000, or AMD

E1-2500 processor

741976-001

Before removing the RTC battery, 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

Battery on page 47), and then remove the following components:

a. Optical drive (see

Optical drive on page 48)

b. Hard drive (see

Hard drive on page 49)

c. WLAN module (see

WLAN module on page 52)

d. Keyboard (see

Keyboard on page 56)

e. Top cover (see

Top cover on page 60)

f. System board (see

System board on page 73)

Remove the RTC battery:

1. Turn the system board upside down with the front toward you.

2. Disconnect the RTC battery cable (1) from the system board.

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

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HP Computer Spezifikationen Seite 88