HP Pavilion dv4-3100 HP Pavilion dv4 Entertainment PC - Maintenance and Servic - Page 56

RTC battery

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RTC battery Description RTC battery Spare part number 640354-001 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 36). 5. Remove the memory module compartment cover (see Memory module on page 37). 6. Remove the keyboard (see Keyboard on page 44). Remove the RTC battery: 1. Disconnect the RTC battery from the system board (1). 2. Remove the RTC battery (2). Reverse this procedure to install the RTC battery. 48 Chapter 4 Removal and replacement procedures ENWW

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RTC battery
Description
Spare part number
RTC battery
640354-001
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
36
).
5.
Remove the memory module compartment cover (see
Memory module
on page
37
).
6.
Remove the keyboard (see
Keyboard
on page
44
).
Remove the RTC battery:
1.
Disconnect the RTC battery from the system board
(1)
.
2.
Remove the RTC battery
(2)
.
Reverse this procedure to install the RTC battery.
48
Chapter 4
Removal and replacement procedures
ENWW