HP Dv7-2170us HP Pavilion dv7 Entertainment PC - Maintenance and Service Guide - Page 62

RTC battery, Remove the primary hard drive cover see

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RTC battery Removal and replacement procedures Description RTC battery Spare part number 449729-001 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 4-7). 5. Remove the primary hard drive cover (see "Primary hard drive cover" on page 4-9). Remove the RTC battery: » Use a non-conductive pointed tool to reach into the notch on the lower right of the disc cell 1 and lift up to remove the RTC battery 2 from the socket on the system board. Reverse this procedure to install the RTC battery. Be sure that the RTC battery is installed with the "+" sign facing up. Maintenance and Service Guide 4-19

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Removal and replacement procedures
Maintenance and Service Guide
4–19
RTC battery
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 4-7
).
5. Remove the primary hard drive cover (see
“Primary hard drive cover” on page 4-9
).
Remove the RTC battery:
»
Use a non-conductive pointed tool to reach into the notch on the lower right of the disc cell
1
and lift up to
remove the RTC battery
2
from the socket on the system board.
Reverse this procedure to install the RTC battery. Be sure that the RTC battery is installed with the “+” sign facing
up.
Description
Spare part number
RTC battery
449729-001