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HP Dc7100 HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 257

Solving Audio Problems, Speech and Audio

UPC - 829160356877

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Solving Audio Problems Solving Audio Problems Problem Cause Sound does not come out of the speaker or headphones. Software volume control is turned down. The external speakers are not turned on. Audio is hidden in Computer Setup. External speakers plugged into the wrong audio jack. Audio cable not connected. Digital CD audio is not enabled. Headphones or devices connected to the line-out connector mute the internal speaker. Volume is muted. Computer is in standby mode. Solution Double-click the Speaker icon on the taskbar and use the volume slider to adjust the volume. Turn on the external speakers. Enable the audio in Computer Setup: Security > Device Security >Audio. See the sound card documentation for proper speaker connection. Connect audio cable between CD or DVD-ROM drive and the system board. Enable digital CD audio: 1. From the Control Panel, select System. 2. On the Hardware tab, click the Device Manager button. 3. Right-click on the CD/DVD device and select Properties. 4. On the Properties tab, make sure "Enable digital CD audio for this CD-ROM device" is checked. Turn on and use headphones or external speakers, if connected, or disconnect headphones or external speakers. 1. From the Control Panel program, click Sound, Speech and Audio Devices, then click Sounds and Audio Devices. 2. Click the Mute check box to remove the check mark from the box. Press the power button to resume from standby mode. Service Reference Guide, dc7100 361288-003 D-15

Section	Page
1	9
1.1 Installing or Upgrading Device Drivers	9
1.2 Transferring Files and Settings	10
1.3 Backing Up and Restoring Files	10
1.3.1 Creating a Backup File-Windows XP Professional	10
1.3.2 Restoring from the Backup File-Windows XP Professional	10
1.4 Converting to NTFS	10
1.5 HP Software	10
2	13
2.1 Power-On Self-Test (POST)	13
2.2 Computer Setup Utilities	14
2.2.1 Using Computer Setup (F10) Utilities	15
2.2.2 Computer Setup Menu	16
2.3 Diagnostics for Windows	26
2.3.1 Detecting Diagnostics for Windows	27
2.3.2 Installing Diagnostics for Windows	27
2.3.3 Using Categories in Diagnostics for Windows	28
2.3.4 Running Diagnostic Tests in Diagnostics for Windows	29
2.4 Configuration Record	30
2.4.1 Installing Configuration Record	31
2.4.2 Running Configuration Record	31
3	33
3.1 Initial Configuration and Deployment	33
3.2 Remote System Installation	34
3.3 Software Updating and Management	34
3.3.1 HP Client Manager Software	34
3.3.2 Altiris Client Management Solutions	35
3.3.3 System Software Manager	35
3.3.4 Proactive Change Notification (PCN)	36
3.3.5 Subscriber’s Choice	36
3.3.6 ROM Flash	36
3.3.7 Remote ROM Flash	36
3.3.8 HPQFlash	37
3.3.9 FailSafe Boot Block ROM	37
3.3.10 Replicating the Setup	38
3.3.11 Dual-State Power Button	44
3.3.12 World Wide Web Site	44
3.3.13 Building Blocks and Partners	44
3.4 Asset Tracking and Security	45
3.4.1 Password Security	49
3.4.2 Establishing a Setup Password Using Computer Setup	49
3.4.3 Establishing a Power-On Password Using Computer Setup	49
3.4.4 DriveLock	52
3.4.5 Smart Cover Sensor	54
3.4.6 Master Boot Record Security	56
3.4.7 Before You Partition or Format the Current Bootable Disk	57
3.4.8 Cable Lock Provision	57
3.4.9 Fingerprint Identification Technology	57
3.5 Fault Notification and Recovery	58
3.5.1 Drive Protection System	58
3.5.2 Surge-Tolerant Power Supply	58
3.5.3 Thermal Sensor	58
4	59
4.1 SATA and PATA Device Information	59
4.2 ATA Cables	60
4.2.1 SATA Data Cable	60
4.2.2 SATA Power Cable	60
4.2.3 PATA Data Cable	61
4.2.4 PATA Power Cable	61
4.2.5 PATA Cable Layout	62
4.3 PATA Drive Installation Guidelines	63
4.3.1 PATA Device Classes	63
4.3.2 PATA Attach Sequence Rules by Class Priority	64
4.3.3 PATA Attach Sequence Worksheet	65
4.3.4 PATA Additional Drive Application Notes	67
4.4 ATA SMART Drives	68
4.5 Drive Capacities	68
4.6 SATA BIOS	69
4.6.1 Legacy Mode	69
4.6.2 Native Mode	69
4.7 Mixed Devices Boot and Drive Letter Ordering	70
5	71
5.1 Chassis Designations	71
5.1.1 Convertible Minitower (CMT)	71
5.1.2 Small Form Factor (SFF)	72
5.1.3 Ultra-Slim Desktop (USDT)	72
5.2 Electrostatic Discharge Information	73
5.2.1 Generating Static	73
5.2.2 Preventing Electrostatic Damage to Equipment	73
5.2.3 Personal Grounding Methods and Equipment	74
5.2.4 Grounding the Work Area	74
5.2.5 Recommended Materials and Equipment	74
5.3 Operating Guidelines	75
5.4 Routine Care	75
5.4.1 General Cleaning Safety Precautions	75
5.4.2 Cleaning the Computer Case	76
5.4.3 Cleaning the Keyboard	77
5.4.4 Cleaning the Monitor	77
5.4.5 Cleaning the Mouse	77
5.5 Service Considerations	78
5.5.1 Power Supply Fan	78
5.5.2 Tools and Software Requirements	78
5.5.3 Screws	78
5.5.4 Cables and Connectors	79
5.5.5 Hard Drives	79
5.5.6 Lithium Coin Cell Battery	79
6	81
6.1 Preparation for Disassembly	81
6.2 Unlocking the Smart Cover Lock	82
6.3 Hood Sensor	83
6.4 External Security Devices	84
6.4.1 Cable Lock	84
6.4.2 Padlock	85
6.5 Computer Access Panel	86
6.6 Front Bezel	87
6.7 Front Drive Bezels	88
6.7.1 5.25” Drive Bezel Blank	88
6.7.2 Diskette Drive Bezel or Bezel Blank	89
6.8 Cable Management	90
6.9 Memory	91
6.10 Expansion Cards	93
6.11 PCI Retainer Latch	97
6.12 Expansion Card Guide	99
6.13 Drives	100
6.13.1 Drive Positions	100
6.13.2 Hard Drive	101
6.13.3 Optical Drive	104
6.13.4 Diskette Drive	107
6.14 Front I/O Device	108
6.15 Power Switch Assembly	109
6.16 System Board	110
6.17 Battery	111
6.17.1 Type 1 Battery Holder	112
6.17.2 Type 2 Battery Holder	113
6.18 Heatsink	114
6.19 Processor	115
6.20 Speaker	117
6.21 Chassis Fan	118
6.22 Power Supply	119
6.23 Changing from Desktop to Minitower	120
6.24 Changing from Minitower to Desktop	123
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis	127
7.1 Preparation for Disassembly	127
7.2 Unlocking the Smart Cover Lock	128
7.3 Hood Sensor	130
7.4 External Security Devices	131
7.4.1 Security Clip	131
7.4.2 Cable Lock	131
7.4.3 Padlock	132
7.4.4 Universal Chassis Clamp Lock	132
7.5 Computer Cover	137
7.6 Front Drive Bezels	138
7.7 Cable Management	140
7.8 Memory	142
7.9 Vertically Oriented Expansion Card	144
7.9.1 Expansion Card Retainer	144
7.9.2 PCI Expansion Card	145
7.9.3 PCI Express Expansion Card	147
7.10 Horizontally Oriented Expansion Card	148
7.10.1 Expansion Card Cage	148
7.10.2 PCI Expansion Card	148
7.10.3 Riser Card	151
7.11 Drives	152
7.11.1 Drive Positions	152
7.11.2 Optical Drive	153
7.11.3 External 3.5-inch Drive	155
7.11.4 Primary Hard Drive	156
7.12 Fan Shroud	160
7.13 Front I/O Devices	161
7.14 Power Switch Assembly	165
7.15 Heatsink	166
7.16 Processor	167
7.17 Speaker	169
7.18 Power Supply	170
7.19 System Board	172
7.20 Chassis Fan	176
7.21 Backwall	177
7.22 Battery	184
7.22.1 Type 1 Battery Holder	185
7.22.2 Type 2 Battery Holder	186
7.22.3 Type 3 Battery Holder	187
8	189
8.1 Preparation for Disassembly	189
8.2 External Security Devices	191
8.2.1 Installing a Cable Lock	191
8.2.2 Installing a Padlock	192
8.3 Computer Access Panel	193
8.4 MultiBay Device	194
8.5 MultiBay Riser Card	195
8.6 Front Panel Assembly	196
8.7 Front Bezel	197
8.8 Chassis Fan	198
8.9 Cable Management	199
8.10 Memory	200
8.11 Expansion Card Cage	202
8.12 Expansion Card	203
8.13 Hood Sensor	205
8.14 Expansion Card Retaining Latch	206
8.15 Hard Drive	207
8.16 Front I/O Device	209
8.17 Heatsink Assembly	210
8.17.1 Heatsink Fan with Shroud	211
8.18 Processor	212
8.19 Power Supply	214
8.20 Battery	215
8.20.1 Type 1 Battery Holder	216
8.20.2 Type 2 Battery Holder	217
8.20.3 Type 3 Battery	218
8.21 Speaker	219
8.22 System Board	220
A	221
B	231
C	233
D	243
E	277

Match case Limit results 1 per page

Service Reference Guide, dc7100

361288-003

D–15

Solving Audio Problems

Problem

Cause

Solution

Sound does not come

out of the speaker or

headphones.

Software volume control

is turned down.

Double-click the

Speaker

icon on

the taskbar and use the volume

slider to adjust the volume.

The external speakers

are not turned on.

Turn on the external speakers.

Audio is hidden in

Computer Setup.

Enable the audio in Computer

Setup:

Security > Device

Security >Audio

External speakers

plugged into the wrong

audio jack.

See the sound card documentation

for proper speaker connection.

Audio cable not

connected.

Connect audio cable between CD

or DVD-ROM drive and the system

board.

Digital CD audio is not

enabled.

Enable digital CD audio:

From the

Control Panel

, select

System

2. On the

Hardware

tab, click

the

Device Manager

button.

3. Right-click on the CD/DVD

device and select

Properties

4. On the

Properties

tab, make

sure “

Enable digital CD

audio for this CD-ROM

device

” is checked.

Headphones or devices

connected to the

line-out connector mute

the internal speaker.

Turn on and use headphones or

external speakers, if connected, or

disconnect headphones or external

speakers.

Volume is muted.

1. From the

Control Panel

program, click

Sound

Speech and Audio

Devices

, then click

Sounds

and Audio Devices

2. Click the

Mute

check box to

remove the check mark from

the box.

Computer is in

standby

mode.

Press the power button to resume

from

standby

mode.