HP 4311S manual Memory module, Description Spare part number

Removal and replacement procedures

Memory module

Description	Spare part number
2048-MB memory module (1333-MHz, DDR2)	577197-001
1024-MB memory module (1333-MHz, DDR2)	577196-001

Before removing the memory module, 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 4-7).

5.Remove the memory/wireless module compartment cover (see “WLAN module” on page 4-12).

Remove the memory module:

✎The top memory module slot is for expansion memory, and the bottom slot is for primary memory.

1.Pull away the retention clips 1 on each side of the memory module to release the memory module. (The memory module tilts up.)

ÄCAUTION: To prevent damage to the memory module, hold it by the edges only. Do not touch the components on the memory module.

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

✎Memory modules are designed with a notch 3 to prevent incorrect insertion into the memory module slot.

Reverse this procedure to install a memory module.

4–16 Maintenance and Service Guide