Dell OptiPlex GX400 User Manual Page 71
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Additional Information
Dell™OptiPlex™GX400SystemUser'sGuide
Regulatory Notices
ENERGY STAR®Compliance
Limited Warranty and Return Policy
Regulatory Notices
Electromagnetic Interference (EMI) is any signal or emission, radiated in free space or conducted along power or signal leads, that endangers the functioning
of a radio navigation or other safety service or seriously degrades, obstructs, or repeatedly interrupts a licensed radio communications service. Radio
communications services include but are not limited to AM/FM commercial broadcast, television, cellular services, radar, air-traffic control, pager, and Personal
Communication Services (PCS). These licensed services, along with unintentional radiators such as digital devices, including computer systems, contribute to
the electromagnetic environment.
Electromagnetic Compatibility (EMC) is the ability of items of electronic equipment to function properly together in the electronic environment. While this
computer system has been designed and determined to be compliant with regulatory agency limits for EMI, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause interference with radio communications services, which can be determined by turning the
equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures:
l Reorient the receiving antenna.
l Relocate the computer with respect to the receiver.
l Move the computer away from the receiver.
l Plug the computer into a different outlet so that the computer and the receiver are on different branch circuits.
If necessary, consult a Technical Support representative of Dell or an experienced radio/television technician for additional suggestions.
Dell computer systems are designed, tested, and classified for their intended electromagnetic environment. These electromagnetic environment classifications
generally refer to the following harmonized definitions:
l Class A is typically for business or industrial environments.
l Class B is typically for residential environments.
Information Technology Equipment (ITE), including peripherals, expansion cards, printers, input/output (I/O) devices, monitors, and so on, that are integrated
into or connected to the system should match the electromagnetic environment classification of the computer system.
A Notice About Shielded Signal Cables: Use only shielded cables for connecting peripherals to any Dell device to reduce the possibility of interference
with radio communications services. Using shielded cables ensures that you maintain the appropriate EMC classification for the intended environment.
For parallel printers, a cable is available from Dell. If you prefer, you can order a cable from Dell on the World Wide Web at
http://www.dell.com/products/dellware/index.htm.
Most Dell computer systems are classified for Class B environments. To determine the electromagnetic classification for your system or device, refer to the
following sections specific for each regulatory agency. Each section provides country-specific EMC/EMI or product safety information.
FCC Notices (U.S. Only)
Most Dell computer systems are classified by the Federal Communications Commission (FCC) as Class B digital devices. However, the inclusion of certain
options can change the rating of some configurations to Class A. To determine which classification applies to your computer system, examine all FCC
registration labels located on the bottom or back panel of your computer, on card-mounting brackets, and on the cards themselves. If any one of the labels
carries a Class A rating, your entire system is considered to be a Class A digital device. If all labels carry an FCC Class B rating as distinguished by either an
FCC ID number or the FCC logo, ( ), your system is considered to be a Class B digital device.
Once you have determined your system's FCC classification, read the appropriate FCC notice. Note that FCC regulations provide that changes or modifications
not expressly approved by Dell could void your authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
l This device may not cause harmful interference.
l This device must accept any interference received, including interference that may cause undesired operation.
Class A
This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause harmful
interference with radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you will be
required to correct the interference at your own expense.
Class B
This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause interference with radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following
measures:
- 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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