HP 2710p HP Compaq 2710p Notebook PC - Maintenance and Service Guide - Page 67
RTC battery
UPC - 884420088295
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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 39). 5. Remove the following components: a. Hard drive compartment cover (see Hard drive on page 41) b. Keyboard (see Keyboard on page 50) c. Rear plastic bezel (see Rear plastic bezel on page 52) d. Top cover (see Top cover on page 54) 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. Component replacement procedures 57