Dell OptiPlex GX400 User Manual Page 2
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About Your Computer
Dell™OptiPlex™GX400SystemUser'sGuide
Front View of Your Computer
Back View of Your Computer
Inside Your Computer
Front View of Your Computer
The following illustration shows the controls and indicators located on the front panel of your computer.
Front View
Controls and Indicators
l Reset button — reboots (restarts) the system in a way that reduces stress on system components. Before you push this button, save and close all open
files and application programs to avoid losing data. Then perform an orderly shutdown of the operating system.
If your computer is not responding, you can press the reset button to reboot the system. For more information, see "Recover From a Program That Is
Not Responding" and "Restart a Computer That Is Not Responding."
l Power button — controls the system's AC input power. See the following table for power button functions on systems running Microsoft®Windows®98
SecondEdition(SE),Windows2000,WindowsXP,orWindowsNT®.
NOTICE: If your computer is not responding, turning off power or unplugging the power cord should be done only as a last resort. Doing so can cause
problems with system settings and configuration.
Power Button Functions
Computer Status
Power Button Functions
Off
Push and release to turn the computer on
On
Push and hold for more than 6 seconds to immediately turn the computer off
On
Push and release to attempt an orderly system shutdown
Suspended state
Push and release to bring the system out of the suspended state
- Notes, Notices, and Cautions 1
- About Your Computer 2
- Back View of Your Computer 3
- Inside Your Computer 4
- System Board Components 5
- Advanced Features 6
- Manageability 7
- Security 8
- Password Protection 9
- Setup Password 10
- Jumper Settings 11
- Installing a TAPI Device 12
- Power Management 13
- Installing Upgrades 15
- Power Supply 17
- Front Panel 17
- System Memory 18
- Upgrading System Memory 19
- Removing a Memory Module 19
- Disk Drives and Media 20
- General Guidelines 25
- EIDE Cables 25
- SCSI ID Numbers 25
- Device Termination 25
- AGP Card Brace 26
- Expansion Cards 26
- Removing the Filler Bracket 27
- Microprocessor 29
- Removing the Microprocessor 31
- Removing the VRM 32
- Replacing the VRM 32
- System Battery 33
- Back to Contents Page 34
- Technical Specifications 35
- Solving Problems 38
- Monitor Problems 39
- Video Problems 39
- Sound and Speaker Problems 40
- Printer Problems 41
- Mouse Problems 43
- Keyboard Problems 43
- Diskette Drive Problems 44
- Hard Drive Problems 45
- Battery Problems 47
- Expansion-Card Problems 47
- Repairing a Wet Computer 48
- Hardware Conflicts 49
- System Memory Problems 50
- Microprocessor Problems 50
- System Board Problems 51
- Dell Diagnostics 52
- Advanced Testing 53
- Messages and Codes 54
- System Beep Codes 56
- Warning Messages 57
- Diagnostics Messages 57
- Diagnostic Indicators 57
- Back-Panel Indicators 58
- Software Problems 59
- BIOS Recovery Utility 61
- Getting Help 62
- Problems With Your Order 63
- Product Information 63
- Before You Call 63
- Dell Contact Numbers 64
- Additional Information 71
- IC Notice (Canada Only) 72
- CE Notice (European Union) 72
- Battery Disposal 72
- VCCI Notice (Japan Only) 73
- MIC Class A Regulatory Mark 74
- Class B Device 74
- MIC Class B Regulatory Mark 74
- BSMI Notice (Taiwan Only) 75
- ENERGY STAR®Compliance 76
- Coverage During Year One 77
- General Provisions 77
- Safety Instructions 80
- Overview 82
- New User Interface 82
- Clean Desktop Wizard 83
- Taskbar Grouping 83
- Notification Area Cleanup 83
- System Restore 84
- Restore Process 85
- Driver Rollback 85
- How to Add Users 86
- Internet Connection Firewall 87
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