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HP Dv4-1124nr HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 128

Heat sink assembly for UMA graphics system

UPC - 884420609841

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Heat sink assembly for UMA graphics system 1. Loosen the four Phillips PM2.0×10.0 captive screws (1) that secure the heat sink assembly to the system board. NOTE: Due to the adhesive quality of the thermal material located between the fan/heat sink assembly and system board components, it may be necessary to move the fan/heat sink assembly from side to side to detach the assembly. 2. Remove the fan/heat sink assembly (2). NOTE: Each time the fan and heat sink are removed, the thermal material must be thoroughly cleaned from the surfaces of the heat sink and system board components: heat sink (1), processor (2), Northbridge clip (3), and capacitor (4). Thermal pads and thermal paste must be installed on all surfaces before the fan and heat sink are reinstalled. Thermal pads and thermal paste are included with all fan, heat sink, system board, and processor spare part kits. Reverse this procedure to install the fan/heat sink assembly. 120 Chapter 4 Removal and replacement procedures

Section	Page
Product description	9
External component identification	16
Top components	16
TouchPad	16
Lights	17
Buttons, speakers, and fingerprint reader	18
Keys	20
Display	21
Front components	22
Rear component	23
Right-side components	23
Left-side components	24
Bottom components	25
Wireless antennae	26
Illustrated parts catalog	27
Serial number location	27
Computer major components	28
Display assembly components	34
Plastics Kit	37
Mass storage devices	38
Miscellaneous parts	41
Sequential part number listing	45
Removal and replacement procedures	55
Preliminary replacement requirements	55
Tools required	55
Service considerations	55
Plastic parts	55
Cables and connectors	56
Drive handling	56
Grounding guidelines	57
Electrostatic discharge damage	57
Packaging and transporting guidelines	58
Workstation guidelines	58
Equipment guidelines	59
Unknown user password	60
Component replacement procedures	61
Serial number	61
Computer feet	62
Battery	63
SIM	64
Optical drive	65
Hard drive	67
WLAN module	70
WWAN module	73
Memory module	75
RTC battery	77
Camera/microphone module for standard display assembly	78
Keyboard	80
Keyboard cover	84
Bluetooth module	86
Speaker assembly	87
SIM connector board	89
Display assembly	91
Standard display assembly	95
Flush Glass display assembly	99
Top cover	103
TouchPad	106
Fingerprint reader board	108
Modem module	110
Audio board	112
USB board	114
TV tuner antenna	116
System board	118
Power button board	121
Modem module cable	123
Fan and heat sink	125
Heat sink assembly for discrete graphics system	127
Heat sink assembly for UMA graphics system	128
Processor	129
Setup Utility	131
Starting the Setup Utility	131
Using the Setup Utility	132
Changing the language of the Setup Utility	132
Navigating and selecting in the Setup Utility	132
Displaying system information	133
Restoring default settings in the Setup Utility	133
Exiting the Setup Utility	134
Setup Utility menus	135
Main menu	135
Security menu	135
System Configuration menu	136
Diagnostics menu	137
Specifications	138
Computer specifications	138
14.1-inch, WXGA, BrightView display specifications	139
Hard drive specifications	140
HD DVD-ROM Drive with SuperMulti DVD±R/RW Double Layer support specifications	141
Blu-ray Disc ROM Drive with SuperMulti DVD±R/RW Double-Layer (DL) support specifications	142
DVD±RW and CD-RW Super Multi Double-Layer Combo Drive specifications	143
High Definition DVD-ROM and DVD±RW Drive	144
System DMA specifications	145
System interrupt specifications—Intel processors	146
System interrupt specifications—AMD processors	147
System I/O address specifications—Intel processors	148
System I/O address specifications—AMD processors	150
System memory map specifications—Intel processors	152
System memory map specifications—AMD processors	153
Screw listing	155
Phillips PM1.5×9.0 slotted screw	156
Phillips PM2.0×3.0 broadhead screw	157
Phillips PM2.0×4.0 screw	158
Phillips PM2.0×10.0 captive screw	162
Phillips PM2.5×3.0 screw	163
Phillips PM2.5×4.0 screw	164
Phillips PM2.5×6.0 screw	169
Phillips PM2.5×6.0 captive screw	171
Phillips PM2.5×7.0 screw	172
Phillips PM2.5×9.0 screw	173
Phillips PM2.5×17.0 screw	175
Phillips PM3.0×4.0 screw	176
Backup and recovery	177
Creating recovery discs	178
Backing up your information	179
When to back up	179
Backup suggestions	179
Using system restore points	179
When to create restore points	179
Create a system restore point	180
Restore to a previous date and time	180
Performing a recovery	181
Recovering from the recovery discs	181
Recovering from the dedicated recovery partition (select models only)	181
Connector pin assignments	182
Audio-in (microphone)	182
Audio-out (headphone)	183
External monitor	184
RJ-11 (modem)	185
RJ-45 (network)	186
HDMI	187
Universal Serial Bus	188
Power cord set requirements	189
Requirements for all countries or regions	189
Requirements for specific countries or regions	190
Recycling	191
Battery	191
Display	191