HP Pavilion g4-1000 HP G4 Notebook PC - Maintenance and Service Guide - Page 79

RTC battery

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RTC battery Description RTC battery (includes cable and double-sided tape) Spare part number 637193-001 Before removing the RTC battery, 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 42), and then remove the following components: ● Optical drive (see Optical drive on page 43) ● Hard drive (see Hard drive on page 45) ● WLAN module (see WLAN module on page 48) ● Keyboard (see Keyboard on page 50) ● Top cover (see Top cover on page 53) ● System board (see System board on page 67) 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. Component replacement procedures 71

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RTC battery
Description
Spare part number
RTC battery (includes cable and double-sided tape)
637193-001
Before removing the RTC battery, 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
42
), and then remove the following components:
●
Optical drive (see
Optical drive
on page
43
)
●
Hard drive (see
Hard drive
on page
45
)
●
WLAN module (see
WLAN module
on page
48
)
●
Keyboard (see
Keyboard
on page
50
)
●
Top cover (see
Top cover
on page
53
)
●
System board (see
System board
on page
67
)
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.
Component replacement procedures
71