HP 4311S manual Modem module, Description Spare part number

Removal and replacement procedures

Modem module

✎The modem module spare part kit does not include a modem module cable. The modem module cable is included in the Cable Kit, spare part number 577214-001.

Description	Spare part number
Modem module for use in all countries and regions except Australia and New Zealand	510100-001
Modem module for use only in Australia and New Zealand	510100-011

Before removing the modem 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 following components:

a.Hard drive (see “Hard drive” on page 4-9)

b.Memory/wireless module compartment cover (see “WLAN module” on page 4-12)

c.Optical drive (see “Optical drive” on page 4-18)

d.Keyboard and switch cover (see “Keyboard and switch cover” on page 4-20)

e.Palm rest (see “Palm rest” on page 4-25)

f.Display assembly (see “Display assembly” on page 4-27)

g.Top cover (see “Top cover” on page 4-36)

4–42 Maintenance and Service Guide