HP 625 Compaq 325 and 326 Notebook PCs HP 425 and 625 Notebook PCs - Maintenan - Page 106
RTC battery, Remove the top cover see
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RTC battery The spare part number for the RTC battery is 449137-001. 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 48). 5. Remove the service door (see Service door on page 49). 6. Remove the hard drive (see Hard drive on page 51). 7. Remove the optical drive (see Optical drive on page 57). 8. Remove the fan (see Fan on page 59). 9. Remove the palm rest (see Palm rest on page 64). 10. Remove the keyboard (see Keyboard on page 67). 11. Remove the top cover (see Top cover on page 71). 12. Remove the system board (seeSystem board on page 90). Remove the RTC battery: 1. Position the computer right-side up with the front toward you. 2. Release the RTC battery from the socket (1) on the system board and lift the battery (2) up. 96 Chapter 4 Removal and replacement procedures