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Compaq Elite 8300 Maintenance & Service Guide Elite 8300 Touch All-in-One - Page 114

Remove the power button board from the computer.

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8. Disconnect the two cables (1) from the board, and then remove the Torx screw that secures the board to the computer (2). Figure 7-72 Removing the power button board 9. Remove the power button board from the computer. To install the power button board, reverse the removal procedures. 104 Chapter 7 Removal and Replacement Procedures All-in One (AIO) Chassis

Section	Page
Product Features	11
Overview	11
Front components	13
Side components	14
Rear components	15
Adjusting the tilt/swivel base	16
Height adjustable/recline stand (optional)	17
Activating and Customizing the Software	19
Activating and customizing the software in Windows 7	19
Activating the Windows operating system	19
Downloading Windows 7 updates	20
Installing or upgrading device drivers	20
Customizing the monitor display	20
Activating and customizing the software in Windows 8	20
Activating the Windows Operating System	20
Downloading Windows 8 updates	21
Customizing the monitor display	21
Computer Setup (F10) Utility	22
Computer Setup (F10) Utilities	22
Using Computer Setup (F10) Utilities	23
Computer Setup—File	24
Computer Setup—Storage	25
Computer Setup—Security	28
Computer Setup—Power	33
Computer Setup—Advanced	35
Recovering the Configuration Settings	37
HP PC Hardware Diagnostics	38
Why run HP PC Hardware Diagnostics – UEFI	38
How to access and run HP PC Hardware Diagnostics - UEFI	38
Downloading HP PC Hardware Diagnostics to a USB device	39
Serial ATA (SATA) Drive Guidelines and Features	40
SATA Hard Drives	40
SATA Hard Drive Cables	40
SATA Data Cable	40
SMART ATA Drives	41
Routine Care and Disassembly Preparation	42
Electrostatic discharge information	43
Generating static	43
Preventing electrostatic damage to equipment	43
Personal grounding methods and equipment	44
Grounding the work area	44
Recommended materials and equipment	45
Operating Guidelines	45
Routine Care	46
General cleaning safety precautions	46
Cleaning the computer case	46
Cleaning the keyboard	46
Cleaning the display	47
Cleaning the mouse	47
Service Considerations	47
Tools and software requirements	48
Screws	48
Cables and connectors	48
Hard drives	48
Lithium coin cell battery	49
Removal and Replacement Procedures All-in One (AIO) Chassis	50
Preparing to disassemble the computer	50
Removing the rear port cover	51
Cable management cover	51
Installing an access panel security screw	52
Synchronizing the optional wireless keyboard or mouse	52
Access panel	55
Stand	58
Lower panel	60
Metal plate	61
Replacing drives	63
Replacing the hard disc drive with a 3.5-inch hard disc drive or a single 2.5-inch drive	63
Replacing the optical disc drive	67
Memory	70
Replacing the battery	73
Serial port	75
Webcam module	77
Converter board	80
Touch sensor board	83
Heat sinks – Graphics board and processor	85
Graphics heat sink	85
Processor heat sink – model 6300	86
Processor heat sink – model 8300	87
Processor	89
mSATA Solid-State Drive	90
WLAN module	91
Graphics board	94
Speakers	96
Fan	97
Side panels	98
Power supply	100
System board	103
Card reader board	110
Power button board	112
Front bezel	115
Antenna	119
Display panel	121
Hood sensor	128
Hard drive and optical drive cables and connectors	130
Troubleshooting Without Diagnostics	132
Safety and Comfort	132
Before You Call for Technical Support	132
Helpful Hints	133
Solving General Problems	135
Solving Power Problems	139
Solving Hard Drive Problems	141
Solving Media Card Reader Problems	144
Solving Display Problems	146
Solving Audio Problems	151
Solving Printer Problems	153
Solving Keyboard and Mouse Problems	155
Solving Hardware Installation Problems	157
Solving Network Problems	159
Solving Memory Problems	163
Solving Processor Problems	165
Solving CD-ROM and DVD Problems	166
Solving USB Flash Drive Problems	168
Solving Front Panel Component Problems	170
Solving Internet Access Problems	170
Solving Software Problems	172
Contacting Customer Support	174
Backup and Recovery	175
Restoring and recovering in Windows 7	175
System Restore	175
System Recovery	176
System Recovery when Windows is responding	176
System Recovery when Windows is not responding	177
System recovery using recovery media	177
Creating recovery media	178
Using recovery media	180
Backup and recovery in Windows 8	181
Backing up your information	181
Performing a system recovery	182
Using the Windows recovery tools	182
Using f11 recovery tools	183
Using Windows 8 operating system media (purchased separately)	183
POST Error Messages	185
POST Numeric Codes and Text Messages	186
Interpreting POST diagnostic front panel LEDs	194
Password Security and Resetting CMOS	197
Establishing a Setup or Power-on password	198
Resetting the Setup and Power-on password	199
Clearing and resetting the CMOS	200
Power Cord Set Requirements	202
General requirements	202
Japanese Power Cord Requirements	202
Country-specific requirements	203
Specifications	204
8300 models	204
6300 models	205