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Acer Aspire 5951G Acer Aspire 5951G Service Guide - Page 179

USB Failure,

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USB Failure 0 If the USB fails, perform the following: Start Check USB/B to M/B cable OK Check USB/B OK Swap M/B Figure 4-8. USB Failure NG Re-assemble the USB/B cable to M/B NG Swap USB/B and USB cable Troubleshooting 4-13

Section	Page
Aspire 5951G Service Guide	1
Table of Contents	5
Chapter 1: Hardware Specifications	11
Table of Contents	12
Features	15
Operating System	15
CPU and Chipset	15
Memory	15
Display	15
Graphics	16
Audio	16
Storage	16
Optical Media Drive	17
Webcam	17
Wireless and Networking	17
Privacy Control	18
Dimension and Weight	18
Power Adapter and Battery	18
Environment	18
Input and Control	19
Input and Output	19
Software	20
Optional Items	21
Warranty	21
Notebook Tour	22
Top View	22
Acer MediaRemote	24
Front View	28
Left View	29
Right View	30
Base View	32
Touchpad Basics	33
Using the Keyboard	34
Windows Keys	35
Hotkeys	36
System Block Diagram	38
Specification Tables	39
Computer specifications	39
System Board Major Chips	40
Processor	40
Processor Specifications	41
CPU Fan True Value Table (Tj=100)	41
CPU Fan True Value Table (Tj=85	41
VGA Fan True Value Table	42
System Memory	42
Memory Combinations	42
Video Interface	44
BIOS	44
LAN Interface	45
Keyboard	45
Hard Disk Drive (AVL components)	46
Super-Multi Drive	47
BD Drive	50
LED 15.6”	51
Display Supported Resolution (LCD)	52
Graphics Controller	52
Display Supported Resolution (GPU)	53
Bluetooth Interface	53
Bluetooth Module	53
Camera	54
Mini Card	54
Audio Codec and Amplifier	55
Audio Interface	56
Wireless Module 802.11b/g/n	56
Battery	56
VRAM	57
USB Port	57
HDMI Port	57
AC Adapter	57
System Power Management	58
Card Reader	59
System LED Indicator	60
System DMA Specification	60
System Interrupt Specification	61
System IO Address Map	62
System I/O Address Specifications	65
Chapter 2: System Utilities	67
Table of Contents	68
BIOS Setup Utility	69
Navigating the BIOS Utility	69
BIOS	70
Information	70
Main	72
Security	74
Boot	79
Exit	80
BIOS Flash Utilities	81
DOS Flash Utility	82
WinFlash Utility	84
HDD/BIOS Password Utilities	85
Clearing HDD Passwords	85
Clearing BIOS Passwords	87
Miscellaneous Tools	90
Using Boot Sequence Selector	90
Using DMI Tools	91
Using the LAN MAC EEPROM Utility	95
Chapter 3: Maintenance Procedures	97
Table of Contents	98
Introduction	101
General Information	101
Recommended Equipment	101
Screw Table	101
Maintenance Flowchart	102
Getting Started	103
Dummy Card Removal	104
Dummy Card Installation	104
Logic Door Removal	105
Logic Door Installation	106
Lower Cover DIMM Module Removal	107
Lower Cover DIMM Module Installation	108
HDD (Hard Disk Drive) Module Removal	109
HDD Module Installation	111
HDD Brackets Removal	112
HDD Carrier Installation	112
WLAN (Wireless Local Area Network) Module Removal	113
WLAN Module Installation	114
Touchpad Removal	115
Touchpad Installation	116
ODD (Optical Disk Drive) Module Removal	117
ODD Module Installation	119
Keyboard Assembly Removal	121
Keyboard Assembly Installation	125
Keyboard Removal	127
Keyboard Installation	128
Function Board Removal	129
Function Board Installation	130
Upper Cover DIMM Module Removal	132
Upper Cover DIMM Module Installation	133
LAN Board Removal	134
LAN Board Installation	135
Upper Cover Removal	137
Upper Cover Installation	140
Fingerprint Scanner Removal	141
Fingerprint Scanner Installation	142
Bluetooth Module Removal	143
Bluetooth Module Installation	144
USB Module Removal	145
USB Module Installation	146
DT Module Removal	147
DT Module Installation	148
LCD Module Removal	149
LCD Module Installation	149
Mainboard Removal	150
Mainboard Installation	153
PCH Heatsink Removal	154
PCH Heatsink Installation	155
RTC Battery Removal	156
RTC Battery Installation	157
Thermal Assembly Removal	158
Thermal Assembly Installation	159
CPU Removal	160
CPU Installation	161
Speaker Module Removal	162
Speaker Module Installation	163
Battery Removal	164
Battery Installation	164
DC-IN Cable Removal	165
DC-IN Cable Installation	166
Chapter 4: Troubleshooting	167
Table of Contents	168
Introduction	169
General Information	169
Power On Issues	170
No Display Issues	171
LCD Failure	173
Keyboard Failure	174
Touchpad Failure	175
Internal Speaker Failure	176
Microphone Failure	178
USB Failure	179
Other Functions Failure	180
Intermittent Problems	181
Undetermined Problems	182
Post Codes	183
Chapter 5: Jumper and Connector Locations	191
Table of Contents	192
Mainboard	193
Clearing Password and BIOS Recovery	196
Clearing Password	196
BIOS Recovery by Crisis Disk	198
Chapter 6: Field Replacement Unit List	201
Table of Contents	202
Exploded Diagrams	204
Main Assembly	204
FRU List	206
Screw List	216
Chapter 7: Model Definition and Configuration	217
Table of Contents	218
Aspire 5951G	219
Chapter 8: Test Compatible Components	259
Table of Contents	260
Microsoft® Windows® 7 Environment Test	262
Aspire 5951G	262
Chapter 9: Online Support Information	271
Table of Contents	272
Introduction	273

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