HP ProBook 4740s HP ProBook 4740s Notebook PC - Maintenance and Service Guide - Page 82

and then unplugging the AC adapter from the computer - i5

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Description Intel Core i7 processor, Quad Core 3612QM, 2.1-GHz processor with 6-MB L3 cache Intel Core i5 processors, Dual Core 3360M, 2.8-GHz processor with 3-MB L3 cache (includes thermal grease) 3320M, 2.6-GHz processor with 3-MB L3 cache (includes thermal grease) 2450M, 2.5-GHz processor with 3-MB L3 cache (includes thermal grease) Intel Core i3 processors, Dual Core 3110M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 2370M, 2.4-GHz processor with 3-MB L3 cache (includes thermal grease) 2350M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) Intel Pentium processor, Dual Core B980, 2.4-GHz, with 2-MB L3 cache B970, 2.3-GHz, with 2-MB L3 cache Intel Celeron processor B840, 1.9-GHz, with 2-MB L3 cache Spare part number 680647-001 681953-001 681952-001 676359-001 682417-001 677152-001 653340-001 692428-001 676785-001 664663-001 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 33). 5. Remove the following components: a. Bottom door (see Bottom door on page 34). b. Hard drive (see Hard drive on page 38) c. Optical drive (see Optical drive on page 36) d. WLAN/Bluetooth module (see WLAN/Bluetooth combo card on page 43) e. Keyboard (see Keyboard on page 45) f. Top cover (see Top cover on page 47) g. Fan (see Fan on page 57) h. System board (see System board on page 63) i. Heat sink (see Heat sink on page 72) 74 Chapter 4 Removal and replacement procedures

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Description
Spare part number
Intel Core i7 processor, Quad Core
3612QM, 2.1-GHz processor with 6-MB L3 cache
680647-001
Intel Core i5 processors, Dual Core
3360M, 2.8-GHz processor with 3-MB L3 cache (includes thermal grease)
681953-001
3320M, 2.6-GHz processor with 3-MB L3 cache (includes thermal grease)
681952-001
2450M, 2.5-GHz processor with 3-MB L3 cache (includes thermal grease)
676359-001
Intel Core i3 processors, Dual Core
3110M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease)
682417-001
2370M, 2.4-GHz processor with 3-MB L3 cache (includes thermal grease)
677152-001
2350M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease)
653340-001
Intel Pentium processor, Dual Core
B980, 2.4-GHz, with 2-MB L3 cache
692428-001
B970, 2.3-GHz, with 2-MB L3 cache
676785-001
Intel Celeron processor
B840, 1.9-GHz, with 2-MB L3 cache
664663-001
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
33
).
5.
Remove the following components:
a.
Bottom door (see
Bottom door
on page
34
).
b.
Hard drive (see
Hard drive
on page
38
)
c.
Optical drive (see
Optical drive
on page
36
)
d.
WLAN/Bluetooth module (see
WLAN/Bluetooth combo card
on page
43
)
e.
Keyboard (see
Keyboard
on page
45
)
f.
Top cover (see
Top cover
on page
47
)
g.
Fan (see
Fan
on page
57
)
h.
System board (see
System board
on page
63
)
i.
Heat sink (see
Heat sink
on page
72
)
74
Chapter 4
Removal and replacement procedures