HP CQ10-688NR, CQ10-689NR, CQ10-610CA Description Spare part number RTC battery 622351-001

2.Grasp the edge of the memory module (2), and then pull it out of the memory module slot.

NOTE: Memory modules are designed with a notch (3) to prevent incorrect insertion into the memory module slot.

Reverse this procedure to install the memory module.

RTC battery

Description	Spare part number
RTC battery	622351-001

Before removing the real-time clock (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 following components:

a.Battery (see Battery on page 40).

b.Service access cover (see Service access cover on page 43).

Remove the RTC battery:

1.Disconnect the RTC battery cable (1) from the system board.

Component replacement procedures 53