HP 2710p HP Compaq 2710p Notebook PC - Maintenance and Service Guide - Page 64

RTC battery, Keyboard see

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RTC battery NOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared. Description RTC battery (includes double-sided tape) Spare part number 454689-001 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 38). 5. Remove the following components: a. Hard drive compartment cover (see Hard drive on page 40) b. Keyboard (see Keyboard on page 49) c. Rear plastic bezel (see Rear plastic bezel on page 51) d. Top cover (see Top cover on page 53) Remove the RTC battery: 1. Disconnect the RTC battery cable (1) from the system board. 2. Remove the RTC battery (2). Reverse this procedure to install the RTC battery. 56 Chapter 4 Removal and replacement procedures

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RTC battery
NOTE:
Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all
passwords and CMOS settings to be cleared.
Description
Spare part number
RTC battery (includes double-sided tape)
454689-001
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
38
).
5.
Remove the following components:
a.
Hard drive compartment cover (see
Hard drive
on page
40
)
b.
Keyboard (see
Keyboard
on page
49
)
c.
Rear plastic bezel (see
Rear plastic bezel
on page
51
)
d.
Top cover (see
Top cover
on page
53
)
Remove the RTC battery:
1.
Disconnect the RTC battery cable
(1)
from the system board.
2.
Remove the RTC battery
(2)
.
Reverse this procedure to install the RTC battery.
56
Chapter 4
Removal and replacement procedures