HP 4730s LJ525UT#ABA manual Description Spare part number

Description	Spare part number
2430M, 2.4-GHz (turbo up to 3.0-GHz) processor with 3-MB L3 cache	653341-001
2410M, 2.3-GHz (turbo up to 2.9-GHz) processor with 3-MB L3 cache	638039-001
Intel Core i3 processors, Dual Core
2350M, 2.3-GHz processor with 3-MB L3 cache	653340-001
2330M, 2.2-GHz processor with 3-MB L3 cache	653339-001
2310M, 2.1-GHz processor with 3-MB L3 cache	638037-001
Intel Pentium processors
B950, 2.1-GHz processor with 2-MB L3 cache	653338-001
B940, 2.0-GHz processor with 2-MB L3 cache	653337-001
Intel Celeron processor, Dual Core
B840, 1.9-GHz processor with 2-MB L3 cache	664663-001
B810, 1.6-GHz processor with 2-MB L3 cache	646760-001

Before removing the processor, 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 47).

5.Remove the following components:

a.Bottom door (see Bottom door on page 49).

b.Hard drive (see Hard drive on page 52)

c.Optical drive (see Optical drive on page 50)

d.WLAN module (see WLAN/Bluetooth combo card on page 58)

e.WWAN module (see WWAN module on page 56)

f.Fan (see Fan on page 93)

g.Heat sink (see Heat sink on page 95)

h.Keyboard (see Keyboard on page 63)

i.Top cover (see Top cover on page 65)

j.System board (see System board on page 85)

k.Fan (see Fan on page 93)

l.Heat sink (see Heat sink on page 95)

98 Chapter 4 Removal and replacement procedures