Rtc Battery - HP Compaq 6715b Maintenance And Service Manual

Remove the internal memory module:
1. Spread the retaining tabs (1) on each side of the memory module slot to release the memory
module. (The edge of the module opposite the slot rises away from the computer.)
2. Remove the memory module (2) by pulling the module away from the slot at an angle.
NOTE:
memory module slot.
Reverse this procedure to install the internal memory module.

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
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
5. Remove the memory/WLAN module compartment cover (see
on page
6. Release the keyboard (see
Memory modules are designed with a notch (3) to prevent incorrect installation into the
Battery on page
60).
Keyboard on page
52).
Expansion memory module
68).
Component replacement procedures
Spare part number
449137-001
71