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HP Dv7-2170us HP Pavilion dv7 Entertainment PC - Maintenance and Service Guide - Page 102

and Northbridge contact, on the Northbridge chip

UPC - 884962256558

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7. Loosen the four Phillips PM2.5x6.0 captive screws (2) that secure the fan/heat sink assembly to the system board. 8. Remove the fan/heat sink assembly (3) from 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. NOTE: The thermal material must be thoroughly cleaned from the surfaces of the fan/heat sink assembly and the system board each time the fan/heat sink assembly is removed. Thermal paste is used on the processor (1) and the heat sink section (4) that services it. Thermal pads are used on the Northbridge chip (2) and Northbridge contact (4), the graphics subsystem chip (3) and graphics/heat sink contact (4). Replacement thermal material is included with all fan/heat sink assembly, system board, and processor spare part kits. Reverse this procedure to install the fan/heat sink assembly. 94 Chapter 4 Removal and replacement procedures

Section	Page
Product description	9
Components	15
Top components	15
Display components	15
TouchPad	16
Buttons and fingerprint reader (select models only)	17
Keys	18
Lights	19
Front components	21
Rear component	22
Right-side components	22
Left-side components	23
Bottom components	24
Illustrated parts catalog	25
Service tag	25
Computer major components	26
Display assembly components	34
Flush glass display assembly spare parts	34
Cable Kit	36
Mass storage devices	37
Miscellaneous parts	38
Sequential part number listing	38
Removal and replacement procedures	45
Preliminary replacement requirements	45
Tools required	45
Service considerations	45
Plastic parts	45
Cables and connectors	46
Drive handling	46
Grounding guidelines	47
Electrostatic discharge damage	47
Packaging and transporting guidelines	48
Workstation guidelines	48
Equipment guidelines	49
Component replacement procedures	50
Service tag	50
Computer feet	51
Battery	52
Optical drive	53
Primary hard drive cover	54
Hard drive	56
WLAN module	58
RTC battery	61
Memory module	62
Secondary hard drive cover	64
TV tuner module	65
Switch cover and keyboard	67
Power button board	72
Speaker assembly	73
Bluetooth module	74
Display assembly	75
Top cover	82
Modem module	85
System board	87
Audio/infrared board	90
USB board	92
Subwoofer	94
TV tuner module cable	95
Modem module cable	96
Power connector cable	98
Fan/heat sink assembly	99
Processor	103
Setup Utility	105
Starting the Setup Utility	105
Using the Setup Utility	106
Changing the language of the Setup Utility	106
Navigating and selecting in the Setup Utility	106
Displaying system information	107
Restoring default settings in the Setup Utility	107
Exiting the Setup Utility	107
Setup Utility menus	109
Main menu	109
Security menu	109
System Configuration menu	109
Diagnostics menu	110
Specifications	111
Computer specifications	111
17.3-inch, HD+ AntiGlare display specifications (some models also support flush glass panel cover) ...	112
17.3-inch HD+ BrightView display specifications	113
Hard drive specifications	114
Blu-ray ROM DVD±R/RW SuperMulti DL Drive specifications	115
DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive specifications	116
System DMA specifications, AMD	117
System interrupt specifications, AMD discrete graphics	117
System interrupt specifications, AMD UMA graphics	118
System I/O address specifications, AMD	119
System memory map specifications, AMD discrete graphics	121
System memory map specifications, AMD UMA graphics	122
Screw listing	123
Phillips PM2.5×7.0 screw	124
Phillips PM2.5×6.0 captive screw	127
Phillips PM2.0×4.0 screw	129
Phillips PM2.0×4.0 screw	130
Phillips PM2.5x4.0 screw	131
Phillips PM2.5×4.0 screw	132
Phillips PM3.0×4.0 screw	133
Phillips PM2.0x3.0 screw	134
PM2.5x5.0 screw (black)	137
PM2.5x5.0 screw (silver)	137
PM2.5x5.0 broadhead screw (black)	139
PM2.5x5.0 broadhead screw (silver)	140
PM2.0x2.0 broadhead screw	141
Backup and Recovery	142
Recovering system information	142
Creating recovery discs	143
Backing up your information	144
When to back up	144
Backup suggestions	144
Using system restore points	144
When to create restore points	144
Create a system restore point	145
Restore to a previous date and time	145
Performing a recovery	146
Recovering from the recovery discs	146
Recovering from the dedicated recovery partition (select models only)	146
Connector pin assignments	147
1394	147
Audio-in (microphone)	147
Audio-out (headphone)	148
External monitor	148
HDMI	149
RJ-11 (modem)	150
RJ-45 (network)	150
Universal Serial Bus	151
Power cord set requirements	152
Requirements for all countries or regions	152
Requirements for specific countries or regions	153
Recycling	154
Battery	154
Display	154