HP Tx2635us HP Pavilion tx2500 Entertainment PC - Maintenance and Service Guid - Page 66
RTC battery, Keyboard see
UPC - 884420449898
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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 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 cord. 4. Remove the battery (see Battery on page 39). 5. Remove the following components: a. Hard drive (see Hard drive on page 41) b. Optical drive (see Optical drive on page 43) c. Keyboard (see Keyboard on page 49) d. Switch cover (see Switch cover on page 51) e. Display assembly (see Display assembly on page 53) f. Top cover (see Top cover on page 56) Remove the RTC battery: Use a non-conductive, flat-bladed tool to pry the RTC battery out of the socket. Reverse this procedure to install the RTC battery. Be sure the RTC battery is installed with the "+" sign facing up. 58 Chapter 4 Removal and replacement procedures