HP Pavilion G4 1100 Notebook Pc Series Service Guide

1.If it is necessary to replace the fan, turn the fan and heat sink upside down with the fan
toward you.
2.Remove the two Phillips PM2.0×3.0 screws (1) that secure the fan to the heat sink.
3.Disengage the two clips (2) that secure the fan to the heat sink.
4.Remove the heat sink (3) from the fan.
Reverse this procedure to reassemble and install the fan and heat sink.
Component replacement procedures 83 

Processor
NOTE:The processor spare part kit includes replacement thermal material.
DescriptionSpare part number
AMD A8-3520M 2.50-GHz processor (1.6-GHz FSB, 4.0-MB L2 cache, quad core, 35 W) 669686-001
AMD A8-3500M 2.40-GHz processor (1.5-GHz FSB, 4.0-MB L2 cache, quad core, 35 W) 653350-001
AMD A6-3420M 2.40-GHz processor (1.5-GHz FSB, 4.0-MB L2 cache, quad core, 35 W) 669688-001
AMD A6-3400M 2.30-GHz processor (1.4-GHz FSB, 4.0-MB L2 cache, quad core, 35 W) 653349-001
AMD A4-3320M 2.60-GHz processor...

DescriptionSpare part number
Intel Core i5-2540M 2.60-GHz (SC turbo up to 3.30-GHz) processor (3-MB
L3 cache, dual core, 35 W)631255-001
Intel Core i5-2520M 2.50-GHz (SC turbo up to 3.20-GHz) processor (3-MB
L3 cache, dual core, 35 W)631253-001
Intel Core i5-2450M 2.50-GHz (SC turbo up to 3.10-GHz) processor (3.0-MB L3 cache,
dual core, 35 W)676359-001
Intel Core i5-2430M 2.40-GHz (SC turbo up to 3.00-GHz) processor (3.0-MB L3 cache,
dual core, 35 W)653341-001
Intel Core i5-2410M 2.30-GHz (SC turbo up to...

●System board (see System board on page 72)
●Heat sink (see 
Fan and heat sink on page 79)
Remove the processor:
1.Use a flat-bladed screw driver (1) to turn the processor locking screw one-half turn
counterclockwise (2), until you hear a click.
2.Lift the processor (3) straight up, and remove it.
NOTE:The gold triangle (4) on the processor must be aligned with the triangle icon embossed
on the processor socket when you install the processor.
Reverse this procedure to install the processor.
86 Chapter 4...

LED board
DescriptionSpare part number
LED board640293-001
Before removing the LED board, 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...

3.Remove the LED board and cable (3).
Reverse this procedure to install the LED board and cable.
Display assembly
NOTE:The display assembly spare part kit includes webcam, two microphones, and wireless
antenna transceivers and cables).
DescriptionSpare part number
14.0-in, HD, LED, BrightView display assembly
In butter gold finish641343-001
In charcoal gray finish641338-001
In luminous rose finish641337-001
In ocean drive finish639447-001
In Pacific blue finish641340-001
In pearl pink finish641341-001
In...

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 48), and then remove the following components:
●Optical drive (see 
Optical drive on page 49)
●Hard drive (see 
Hard drive on page 51)
●WLAN module (see 
WLAN module on page 54)
●Keyboard (see 
Keyboard on page 56)
●Top cover (see 
Top cover on page 59)
Remove the display assembly:
1.Disconnect the display panel...

5.If it is necessary to replace the display bezel or any of the display assembly subcomponents:
a.Remove the Mylar screw covers (1) and the two Phillips PM2.5×6.0 screws (2) that secure
the display bezel to the display assembly.
b.Flex the inside edges of the top edge (1), the left and right sides (2), and the bottom
edge (3) of the display bezel until the bezel disengages from the display enclosure.
c.Remove the display bezel (4). The display bezel is available using spare part number
639440-001.
6.If...

b.Disconnect the webcam/microphone module (2) from the webcam/microphone module.
c.Remove the webcam/microphone module. The webcam/microphone module is available
using spare part number 637197-001.
7.If it is necessary to replace the hinge covers:
a.Remove the Phillips PM2.5×6.0 (1) screws that secure the hinge covers to
the display enclosure.
b.Remove the hinge covers (2). The hinge covers are available using spare part number
639446-001.
Component replacement procedures 91 

8.If it is necessary to replace the display panel:
a.Remove the four Phillips PM2.5×6.0 screws that secure the display panel to
the display enclosure.
b.Lift the top edge of the display panel, and then swing it up and forward until it rests upside
down in front of the display enclosure.
92 Chapter 4   Removal and replacement procedures