HP Compaq dx2250 User Manual Page 50
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Locking the Smart Cover Lock
To activate and lock the Smart Cover Lock, complete the following steps:
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart.
2. As soon as the computer is turned on, press F10 when the monitor light turns green to enter
Computer Setup. Press Enter to bypass the title screen, if necessary.
NOTE: If you do not press F10 at the appropriate time, you must restart the computer and
again press F10 when the monitor light turns green to access the utility.
3. Select Security > Smart Cover > Cover Lock > Lock option.
4. Before exiting, click File > Save Changes and Exit.
Unlocking the Smart Cover Lock
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart.
2. As soon as the computer is turned on, press F10 when the monitor light turns green to enter
Computer Setup. Press Enter to bypass the title screen, if necessary.
NOTE: If you do not press F10 at the appropriate time, you must restart the computer and
again press F10 when the monitor light turns green to access the utility.
3. Select Security > Smart Cover > Cover Lock > Unlock.
4. Before exiting, click File > Save Changes and Exit.
Using the Smart Cover FailSafe Key
If you enable the Smart Cover Lock and cannot enter the password to disable the lock, you will need a
Smart Cover FailSafe Key to open the computer cover. You will need the key in any of the following
circumstances:
●
Power outage
●
Startup failure
●
PC component failure (such as processor or power supply)
●
Forgotten password
CAUTION: The Smart Cover FailSafe Key is a specialized tool available from HP. Be prepared;
order this key before you need oneat an authorized reseller.
To obtain the FailSafe Key, call the appropriate number listed in the warranty.
For more information about using the Smart Cover FailSafe Key, consult the Hardware Reference
Guide on the Documentation and Diagnostics CD.
Cable Lock Provision
The rear panel of the computer accommodates a cable lock so that the computer can be physically
secured to a work area.
44 Chapter 4 Desktop Management ENWW
- Service Reference Guide 1
- About This Book 3
- Table of contents 5
- Backing Up the CMOS 19
- Restoring the CMOS 19
- 3 HP Insight Diagnostics 21
- Survey Tab 22
- Test Tab 22
- Status Tab 23
- Help Tab 24
- Protecting the Software 25
- Restoring the Software 25
- 4 Desktop Management 27
- HP OpenView Agent 28
- Remote System Installation 30
- HP System Software Manager 31
- HP Client Manager 31
- HP Client Foundation Suite 33
- ROM Flash 34
- Remote ROM Flash 35
- HPQFlash 35
- Replicating the Setup 36
- Copying to Multiple Computers 37
- Creating a Bootable Device 38
- Dual-State Power Button 41
- HP Web Site Support 41
- Industry Standards 42
- Asset Tracking and Security 42
- Password Security 44
- Entering a Power-On Password 45
- Entering a Setup Password 45
- DriveLock 47
- Using DriveLock 48
- DriveLock Applications 48
- Smart Cover Sensor 49
- Smart Cover Lock 49
- Cable Lock Provision 50
- Drive Protection System 51
- Surge-Tolerant Power Supply 51
- Thermal Sensor 51
- SATA Hard Drives 53
- SATA Hard Drive Cables 53
- SATA Power Cable 54
- PATA Device Information 55
- ATA SMART Drives 55
- Hard Drive Capacities 55
- Chassis Designations 57
- Generating Static 58
- Grounding the Work Area 59
- Operating Guidelines 61
- Routine Care 61
- Cleaning the Keyboard 62
- Cleaning the Monitor 62
- Service Considerations 63
- Cables and Connectors 64
- Hard Drives 64
- Lithium Coin Cell Battery 64
- — Microtower (MT) Chassis 65
- Access Panel 66
- Front Bezel 67
- Front Drive Bezels 68
- DDR2-SDRAM DIMMs 70
- Installing Memory Modules 70
- Expansion Cards 72
- PCI/PCIe Expansion Card 73
- Cable Management 75
- Cable Connections 76
- Drive Positions 77
- 5.25" Drive 78
- 3.5” Drive 79
- Removing a 3.5” Hard Drive 81
- Power Switch Assembly 83
- Speaker 84
- System Fan 85
- Heatsink 86
- Processor 87
- System Board 89
- Type 1 Battery Holder 91
- Type 2 Battery Holder 92
- Type 3 Battery Holder 93
- Power Supply 94
- A Connector Pin Assignments 95
- Ethernet RJ-45 96
- Ethernet AUI 96
- Parallel Interface 97
- Microphone 98
- Headphone 98
- Line-in Audio 98
- Line-out Audio 98
- External Infrared Transceiver 98
- ENWW Monitor 93 99
- 24-Pin Power 100
- 24-Pin MicroFit Power 101
- 4-Pin Power (for CPU) 101
- 6-Pin Power (for CPU) 101
- SATA Data and Power 102
- PCI Express 102
- DVI Connector 104
- ENWW DVI Connector 99 105
- B Power Cord Set Requirements 107
- C POST Error Messages 109
- Safety and Comfort 119
- Helpful Hints 120
- Solving General Problems 122
- Solving Power Problems 126
- Solving Diskette Problems 127
- Solving Hard Drive Problems 130
- Solving Display Problems 134
- Solving Audio Problems 138
- Solving Printer Problems 140
- Solving Network Problems 145
- Solving Memory Problems 148
- Solving Processor Problems 150
- Cause Solution 153
- Solving Drive Key Problems 154
- Solving Software Problems 158
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