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Dell Dimension 5100 Service Manual

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Table of Contents
Dell™ Dimension™ 5100 Service Manual
Before You Begin
Removing the Computer Cover
About Your Dell™ Dimension™ 5100 Computer
Advanced Troubleshooting
Removing and Installing Parts
Replacing the Computer Cover
Specifications
Technical Overview
System Setup
 Notes, Notices, and Cautions
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
NOTICE:
A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION:
A CAUTION indicates a potential for property damage, personal injury, or death.
If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable.
Information in this document is subject to change without notice.
© 2005 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and Dimension are trademarks of Dell Inc.; Intel and Pentium are registered trademarks of Intel Corporation; Microsoft and
Windows are registered trademarks of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any
proprietary interest in trademarks and trade names other than its own.
Model DCSM
October 2005     Rev. A01

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Table of Contents

   Summary of Contents for Dell Dimension 5100

  • Page 1 Windows are registered trademarks of Microsoft Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
  • Page 2: Front View Of The Computer

    Use the Service Tag to identify your computer when you access the Dell Service Tag Support website or call technical support. CD or DVD Press to eject a disk from the CD or DVD drive.
  • Page 3: Back View Of The Computer

      NOTICE: Do not lift or carry the computer by the vents to avoid damage to the computer.   NOTICE: Keep the vent area clean and dust-free to ensure that the computer is adequately ventilated. Use only a dry cloth to clean the vent area to avoid water damage to the computer.
  • Page 4 surround connector Use the black surround connector to attach multichannel-capable speakers. line-in connector Use the blue line-in connector to attach a record/playback device such as a cassette player, CD player, or VCR. On computers with a sound card, use the connector on the card. line-out connector Use the green line-out connector (available on computers with integrated sound) to attach headphones and most speakers with...
  • Page 5 Use the Service Tag to identify your computer when you access the Dell Support website or call technical support. Service Tag CD or DVD eject Press to eject a disk from the CD or DVD drive.
  • Page 6: Back View Of Computer

    NOTICE: Keep the vent area clean and dust-free to ensure that the computer is adequately ventilated. Use only a dry cloth to clean the vent area to avoid water damage to the computer.  Back View of the Computer 1 voltage selection switch (may not be available on all computers) See the safety instructions in the Product Information Guide for more information. 2 power connector Insert the power cable.
  • Page 7 The side-surround output provides enhanced surround audio for computers with 7.1 speakers. center/subwoofer Use the yellow connector to attach a speaker to a Low Frequency Effects (LFE) audio channel. connector VGA video connector If your monitor has a VGA connector, plug it into the VGA connector on the computer. 10 USB 2.0 connectors (5) Use the back USB connectors for devices that typically remain connected, such as printers, keyboards, and mice, or for bootable USB devices which may not function properly if attached to the front connectors (see...
  • Page 8: Before You Begin

    Hold a component such as a processor by its edges, not by its pins. NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
  • Page 9   2. Disconnect any telephone or telecommunication lines from the computer.   3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.  ...
  • Page 10 Hold a component such as a processor by its edges, not by its pins. NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
  • Page 11   2. Disconnect any telephone or telecommunication lines from the computer.   3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.  ...
  • Page 12: Replacing The Computer Cover

    Back to Contents Page   Replacing the Computer Cover Dell™ Dimension™ 5100 Service Manual   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   1. Ensure that all cables are connected, and fold cables out of the way.
  • Page 13 Back to Contents Page   Replacing the Computer Cover Dell™ Dimension™ 5100 Service Manual   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   1. Ensure that all cables are connected, and fold cables out of the way.
  • Page 14: Removing The Computer Cover

    Back to Contents Page   Removing the Computer Cover Dell™ Dimension™ 5100 Service Manual   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
  • Page 15 Back to Contents Page   Removing the Computer Cover Dell™ Dimension™ 5100 Service Manual   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
  • Page 16: Removing And Installing Parts

     If you install mixed pairs of DDR2 400-MHz (PC2-3200) and DDR2 533-MHz (PC2-4300) memory, the modules function at the slowest speed installed.  Be sure to install a single memory module in DIMM connector 1, the connector closest to the processor, before you install modules in the other connectors. NOTE: Memory purchased from Dell is covered under your computer warranty.
  • Page 17: Addressing Memory With 4-gb Configurations

    If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module.
  • Page 18: Pci Cards

    To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis. Your Dell™ computer provides the following slots for PCI and PCI Express cards:  Two PCI card slots  One PCI Express x16 card slot...
  • Page 19: Installing A Pci Card

    If you are installing or replacing a card, follow the procedures in the next section. If you are removing but not replacing a PCI card, see "Removing a PCI Card." If you are replacing a card, remove the current driver for the card from the operating system. If you are installing or replacing a PCI Express card, see "Installing a PCI Express Card."...
  • Page 20 1 bracket within slot 4 alignment guide 2 bracket caught outside of slot 5 fully seated card 3 alignment bar 6 not fully seated card   8. Before you close the card retention door, ensure that:  The tops of all cards and filler brackets are flush with the alignment bar.  The notch in the top of the card or filler bracket fits around the alignment guide.
  • Page 21: Removing A Pci Card

      4. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, contact Dell (see your Owner's Manual for information about how to contact Dell). NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
  • Page 22 1 card retention door 2 card retention mechanism 3 release tabs (2)   3. Gently push the release tab on the card retention door from the inside to pivot the door open. Because the door is captive, it will remain in the open position.
  • Page 23 1 bracket within slot 4 alignment guide 2 bracket caught outside of slot 5 fully seated card 3 alignment bar 6 not fully seated card   10. If you replaced a card that was already installed in the computer and you removed the retention mechanism, you may reinstall the retention mechanism.  ...
  • Page 24: Removing A Pci Express Card

      5. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, contact Dell (see your Owner's Manual for information about how to contact Dell). NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
  • Page 25: Removing The Drive-panel Insert

    1 sliding plate lever 3 drive panel 2 sliding plate 4 front panel   3. Grasping the sliding plate lever, slide and hold the sliding plate until the drive panel snaps open. NOTE: The sliding plate secures and releases the drive panel and helps to secure the drives.  ...
  • Page 26: Replacing The Drive-panel Insert

    3. Pivot the drive-panel insert out and away from the drive panel.   4. Set the drive-panel insert aside in a secure location.   Replacing the Drive-Panel Insert 1 drive-panel insert tab 3 center drive-panel tab 2 drive panel insert 4 drive panel  ...
  • Page 27: Removing The Front Panel

     Front Panel   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.  ...
  • Page 28: Ide Drive Addressing

    1 CD/DVD drive(s) 2 FlexBay for optional floppy drive or optional Media Card Reader 3 hard drive(s) Connect CD/DVD drives to the connector labeled "IDE1" on the system board. Serial ATA hard drives should be connected to the connectors labeled "SATA0" or "SATA2"...
  • Page 29: Removing A Hard Drive

    1 SATA power cable connector 3 power cable connector 2 power connector 4 power connector  Hard Drive   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
  • Page 30: Installing A Hard Drive

    1 hard drive 2 tabs (2)   Installing a Hard Drive   1. Follow the procedures in "Before You Begin."   2. Remove the computer cover.   3. If you are installing a replacement hard drive, remove the old hard drive.
  • Page 31: Adding A Second Hard Drive

    2 power cable   8. Check all connectors to be certain that they are properly cabled and firmly seated.   9. Replace the computer cover. NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.  ...
  • Page 32: Removing A Floppy Drive

    NOTE: If you are adding a floppy drive, see "Installing a Floppy Drive."   Removing a Floppy Drive   1. Follow the procedures in "Before You Begin."   2. Remove the computer cover.   3. Remove the drive panel. 1 power cable 2 data cable  ...
  • Page 33: Installing A Floppy Drive

    Installing a Floppy Drive NOTE: If the new floppy drive does not include shoulder screws, use the screws within the drive panel insert. 1 drive 2 screws (4)   1. Follow the procedures in "Before You Begin."   2. Remove the computer cover.
  • Page 34: Removing A Media Card Reader

    11. Enter system setup and select the appropriate Diskette Drive option.   12. Verify that your computer works correctly by running the Dell Diagnostics.  Media Card Reader (Optional) For information about using a Media Card Reader, see your Owner's Manual.
  • Page 35: Installing A Media Card Reader

    1 sliding plate lever 2 sliding plate 3 Media Card Reader   5. Slide the sliding plate toward the bottom of the computer and, without releasing the sliding plate, slide the Media Card Reader out through the front of the computer.  ...
  • Page 36: Removing A Cd/dvd Drive

      5. Slide the Media Card Reader into place until you feel a click or feel the drive securely installed. NOTE: Ensure that the Media Card Reader is installed before the FlexBay cable is connected.   6. Connect the FlexBay USB cable to the back of the Media Card Reader and to the Media Card Reader connector on the system board. 1 Media Card Reader 2 FlexBay USB cable  ...
  • Page 37: Installing A Cd/dvd Drive

      5. Slide the sliding plate lever toward the bottom of the computer and, without releasing the sliding plate lever, slide the CD/DVD drive out through the front of the computer.   Installing a CD/DVD Drive   1. Follow the procedures in "Before You Begin."...
  • Page 38: Removing The Heat-sink Assembly

    See the documentation that came with the drive for instructions on installing any software required for drive operation.   10. Enter system setup and select the appropriate Drive option.   11. Verify that your computer works correctly by running the Dell Diagnostics.  Heat-Sink Assembly   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 39: Removing The Processor

    NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat-sink assembly. If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you install your new processor.  ...
  • Page 40: Installing The Processor

    b.  Pull the lever back to release the processor cover. 1 processor cover 4 release lever 2 processor 5 side latch 3 processor socket     NOTICE: When removing or replacing the processor, do not touch any of the pins inside the processor socket or allow any objects to fall onto the pins in the socket.
  • Page 41: Removing The Fan Assembly

    If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you replace the processor. If you installed a processor replacement kit from Dell, return the original heat-sink assembly and processor to Dell in the same package in which your replacement kit was sent.
  • Page 42: Removing The Front I/o Panel

    1 fan release tabs (2) 2 fan assembly 3 fan cable connector 4 release tab on fan cable connector   5. Simultaneously press the fan-release tab on one side of the fan assembly and pull the fan- release tab located on the bottom of the opposite side of the assembly upwards.
  • Page 43: System Board

    1 screw 2 front I/O panel   5. Remove the screw that secures the front I/O panel to the front of the computer.   6. Pull the I/O panel toward the back of the computer and lift the panel to remove from the computer.  ...
  • Page 44: Removing The System Board

          Jumper Setting Description PSWD Password features are enabled. (default) Password features are disabled. RTCRST Real-time clock reset in normal operation. (default) Clear CMOS settings.   Removing the System Board   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer.
  • Page 45: Replacing The System Board

    1 mounting-bracket screws (2) 2 system-board screws (8)   11. Place the system board assembly that you just removed next to the replacement system board to ensure that it is identical.   Replacing the System Board   1. Gently align the system board in the chassis and slide the board toward the back of the computer.  ...
  • Page 46: Replacing The Power Supply

    1 release button 2 power supply 3 screws (4) 4 AC power connector NOTICE: Note the routing of the DC power cables underneath the routing clips in the computer frame as you remove them from the system board and drives. You must route these cables properly when you replace them to prevent them from being pinched or crimped.  ...
  • Page 47  ...
  • Page 48 Back to Contents Page   Removing and Installing Parts Dell™ Dimension™ 5100 Service Manual   Memory   CD/DVD Drive   Cards   Heat-Sink Assembly   Drive Panel   Processor   Front Panel   Fan Assembly   Drives   Front I/O Panel   Hard Drive   System Board   Floppy Drive   Power Supply   Media Card Reader (Optional)  Memory You can increase your computer memory by installing memory modules on the system board.
  • Page 49 If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module.
  • Page 50 To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis. Your Dell™ computer provides the following slots for PCI and PCI Express cards:  Two PCI card slots  One PCI Express x16 card slot...
  • Page 51 If you are installing or replacing a card, follow the procedures in the next section. If you are removing but not replacing a PCI card, see "Removing a PCI Card." If you are replacing a card, remove the current driver for the card from the operating system. If you are installing or replacing a PCI Express card, see "Installing a PCI Express Card."...
  • Page 52 1 bracket within slot 4 alignment guide 2 bracket caught outside of slot 5 fully seated card 3 alignment bar 6 not fully seated card   8. Before you close the card retention door, ensure that:  The tops of all cards and filler brackets are flush with the alignment bar.  The notch in the top of the card or filler bracket fits around the alignment guide.
  • Page 53   4. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, contact Dell (see your Owner's Manual for information about how to contact Dell). NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
  • Page 54 1 card retention door 2 card retention mechanism 3 release tabs (2)   3. Gently push the release tab on the card retention door from the inside to pivot the door open. Because the door is captive, it will remain in the open position.
  • Page 55 1 bracket within slot 4 alignment guide 2 bracket caught outside of slot 5 fully seated card 3 alignment bar 6 not fully seated card   10. If you replaced a card that was already installed in the computer and you removed the retention mechanism, you may reinstall the retention mechanism.  ...
  • Page 56   5. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, contact Dell (see your Owner's Manual for information about how to contact Dell). NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
  • Page 57 1 sliding plate lever 3 drive panel 2 sliding plate 4 front panel   3. Grasping the sliding plate lever, slide and hold the sliding plate until the drive panel snaps open. NOTE: The sliding plate secures and releases the drive panel and helps to secure the drives.  ...
  • Page 58 3. Pivot the drive-panel insert out and away from the drive panel.   4. Set the drive-panel insert aside in a secure location.   Replacing the Drive-Panel Insert 1 drive-panel insert tab 3 center drive-panel tab 2 drive panel insert 4 drive panel  ...
  • Page 59  Front Panel   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.  ...
  • Page 60 1 CD/DVD drive(s) 2 FlexBay for optional floppy drive or optional Media Card Reader 3 hard drive(s) Connect CD/DVD drives to the connector labeled "IDE1" on the system board. Serial ATA hard drives should be connected to the connectors labeled "SATA0" or "SATA2"...
  • Page 61 1 SATA power cable connector 3 power cable connector 2 power connector 4 power connector  Hard Drive   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
  • Page 62 1 hard drive 2 tabs (2)   Installing a Hard Drive   1. Follow the procedures in "Before You Begin."   2. Remove the computer cover.   3. If you are installing a replacement hard drive, remove the old hard drive.
  • Page 63 2 power cable   8. Check all connectors to be certain that they are properly cabled and firmly seated.   9. Replace the computer cover. NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.  ...
  • Page 64 NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer. NOTE: If you are adding a floppy drive, see "Installing a Floppy Drive."...
  • Page 65   Installing a Floppy Drive NOTE: If the new floppy drive does not include shoulder screws, use the screws within the drive panel insert. 1 drive 2 screws (4)   1. Follow the procedures in "Before You Begin."   2. Remove the computer cover.
  • Page 66 11. Enter system setup and select the appropriate Diskette Drive option.   12. Verify that your computer works correctly by running the Dell Diagnostics.  Media Card Reader (Optional) For information about using a Media Card Reader, see your Owner's Manual.
  • Page 67 1 sliding plate lever 2 sliding plate 3 Media Card Reader   5. Slide the sliding plate toward the bottom of the computer and, without releasing the sliding plate, slide the Media Card Reader out through the front of the computer.  ...
  • Page 68   5. Slide the Media Card Reader into place until you feel a click or feel the drive securely installed. NOTE: Ensure that the Media Card Reader is installed before the FlexBay cable is connected.   6. Connect the FlexBay USB cable to the back of the Media Card Reader and to the Media Card Reader connector on the system board. 1 Media Card Reader 2 FlexBay USB cable  ...
  • Page 69   5. Slide the sliding plate lever toward the bottom of the computer and, without releasing the sliding plate lever, slide the CD/DVD drive out through the front of the computer.   Installing a CD/DVD Drive   1. Follow the procedures in "Before You Begin."...
  • Page 70 See the documentation that came with the drive for instructions on installing any software required for drive operation.   10. Enter system setup and select the appropriate Drive option.   11. Verify that your computer works correctly by running the Dell Diagnostics.  Heat-Sink Assembly   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 71 NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat-sink assembly. If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you install your new processor.  ...
  • Page 72 a.  Push down on the release lever and slide the lever out from under the side latch on the processor socket. b.  Pull the lever back to release the processor cover. 1 processor cover 4 release lever 2 processor 5 side latch 3 processor socket  ...
  • Page 73 If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you replace the processor. If you installed a processor replacement kit from Dell, return the original heat-sink assembly and processor to Dell in the same package in which your replacement kit was sent.
  • Page 74 1 fan release tabs (2) 2 fan assembly 3 fan cable connector 4 release tab on fan cable connector   5. Simultaneously press the fan-release tab on one side of the fan assembly and pull the fan- release tab located on the bottom of the opposite side of the assembly upwards.
  • Page 75 1 screw 2 front I/O panel   5. Remove the screw that secures the front I/O panel to the front of the computer.   6. Pull the I/O panel toward the back of the computer and lift the panel to remove from the computer.  ...
  • Page 76       Jumper Setting Description PSWD Password features are enabled. (default) Password features are disabled. RTCRST Real-time clock reset in normal operation. (default) Clear CMOS settings.   Removing the System Board   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer.
  • Page 77 1 mounting-bracket screws (2) 2 system-board screws (8)   11. Place the system board assembly that you just removed next to the replacement system board to ensure that it is identical.   Replacing the System Board   1. Gently align the system board in the chassis and slide the board toward the back of the computer.  ...
  • Page 78 1 release button 2 power supply 3 screws (4) 4 AC power connector NOTICE: Note the routing of the DC power cables underneath the routing clips in the computer frame as you remove them from the system board and drives. You must route these cables properly when you replace them to prevent them from being pinched or crimped.  ...
  • Page 79 Back to Contents Page  ...
  • Page 80: Entering System Setup

     Entering System Setup   1. Turn on (or restart) your computer.   2. When the blue DELL™ logo is displayed, you must watch for the F2 prompt to appear.    3. Once this F2 prompt appears, press <F2> immediately. NOTE: The F2 prompt indicates that the keyboard has initialized. This prompt can appear very quickly, so you must watch for it to display, and then press <F2>.
  • Page 81: System Setup Options

    Field and lists keys and their functions within the active system setup field.  System Setup Options NOTE: Depending on your computer and installed devices, the items listed in this section may not appear, or may not appear exactly as listed. System Displays the following information for the processor installed in the system: Processor Type, Processor...
  • Page 82 are 1MB and 8MB. Memory Size (8 MB default)   Performance Determines whether the physical processor appears as one or two logical processors. HyperThreading The performance of some applications improve with additional logical processors installed. On enables hyperthreading. (On default) Enables SpeedStep for all supported processors in the computer.
  • Page 83: Option Settings

    Entries Read puts an R to the left of all the entries. Clear Log clears the Event Log. POST Behavior When enabled, this feature reduces computer startup time by bypassing some compatibility Fastboot steps. Off does not skip any steps during computer startup. On starts the system more quickly. default) Determines the functionality of the numeric keys on the right side of your keyboard.
  • Page 84: Clearing Forgotten Passwords

    2. Use the arrow keys to highlight the Boot Sequence menu option and press <Enter> to access the menu. NOTE: Write down your current boot sequence in case you want to restore it.   3. Press the up- and down-arrow keys to move through the list of devices.  ...
  • Page 85: Clearing Cmos Settings

     Clearing CMOS Settings   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   1. Follow the procedures in "Before You Begin."   2. Reset the current CMOS settings: a.
  • Page 86  Entering System Setup   1. Turn on (or restart) your computer.   2. When the blue DELL™ logo is displayed, you must watch for the F2 prompt to appear.    3. Once this F2 prompt appears, press <F2> immediately. NOTE: The F2 prompt indicates that the keyboard has initialized. This prompt can appear very quickly, so you must watch for it to display, and then press <F2>.
  • Page 87 Key Functions — This field appears below the Option Field and lists keys and their functions within the active system setup field.  System Setup Options NOTE: Depending on your computer and installed devices, the items listed in this section may not appear, or may not appear exactly as listed. System Displays the following information for the processor installed in the system: Processor Type, Processor Clock Speed, Processor Bus Speed, Processor Cache Size, Processor ID...
  • Page 88 default) Video Memory Size Configures the system memory allocation reserved for the integrated video controller. Settings are 1MB and 8MB. (8 MB default)   Performance HyperThreading Determines whether the physical processor appears as one or two logical processors. The performance of some applications improve with additional logical processors installed. On enables hyperthreading.
  • Page 89 Allows you to view the Event Log. Entries are marked R for Read and U for Unread. Mark All Event Log Entries Read puts an R to the left of all the entries. Clear Log clears the Event Log. POST Behavior Fastboot When enabled, this feature reduces computer startup time by bypassing some compatibility steps.
  • Page 90 1. Enter system setup.   2. Use the arrow keys to highlight the Boot Sequence menu option and press <Enter> to access the menu. NOTE: Write down your current boot sequence in case you want to restore it.   3. Press the up- and down-arrow keys to move through the list of devices.  ...
  • Page 91 10. Connect your computer and devices to electrical outlets, and turn them on.  Clearing CMOS Settings   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   1. Follow the procedures in "Before You Begin."...
  • Page 92: Specifications

    Back to Contents Page   Specifications Dell™ Dimension™ 5100 Service Manual   Processor   Expansion Bus   Memory   Connectors   Computer Information   Controls and Lights   Video   Power   Audio   Physical   Drives   Environmental Processor Processor type ® ® Intel Pentium 4 5XXX and 6XXX processors with Hyper-Threading technology   NOTE: Not all Pentium 4 processors support Hyper- Threading technology.
  • Page 93 connector size 120 pins connector data width (maximum) 32 bits PCI Express   connector one x1 connector size 36 pins connector data width (maximum) 1 PCI Express lane PCI Express   connector one x16 connector size 164 pins connector data width (maximum) 16 PCI Express lanes Drives ...
  • Page 94 Wattage 305 W Heat dissipation 1039 BTU/hr Voltage (see the safety instructions in the 90 to 135 V and 180 to 265 V at 50/60 Hz Product Information Guide for important voltage setting information) Backup battery 3-V CR2032 lithium coin cell Physical Height 41.4 cm (16.3 inches)
  • Page 95 Back to Contents Page   Specifications Dell™ Dimension™ 5100 Service Manual   Processor   Memory   Connectors   Computer Information    Controls and Lights    Video   Power   Audio   Physical   Drives    Environmental    Expansion Bus  Processor ® ® Processor type Intel Pentium 4 5XXX and 6XXX processors with Hyper-Threading technology   NOTE: Not all Pentium 4 processors support Hyper- Threading technology.
  • Page 96 connectors connector size 120 pins connector data width (maximum) 32 bits PCI Express   connector one x1 connector size 36 pins connector data width (maximum) 1 PCI Express lane PCI Express   connector one x16 connector size 164 pins connector data width (maximum) 16 PCI Express lanes Drives ...
  • Page 97 Power DC power supply: Wattage 305 W Heat dissipation 1039 BTU/hr Voltage (see the safety instructions in the 90 to 135 V and 180 to 265 V at 50/60 Hz Product Information Guide for important voltage setting information) Backup battery 3-V CR2032 lithium coin cell Physical Height...
  • Page 98: Technical Overview

    Back to Contents Page   Technical Overview Dell™ Dimension™ 5100 Service Manual   Inside View of Your Computer   System Board Components   Power Supply DC Connector Pin Assignments  Inside View of Your Computer   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 99: Power Supply Dc Connector Pin Assignments

     Power Supply DC Connector Pin Assignments   DC Main Power Connector P1      ...
  • Page 100       Pin Number Signal Name 18-AWG Wire +3.3 VDC* Orange +3.3 VDC* Orange Black +5VDC Black +5 VDC Black Gray +5 VFP Purple +12 VBDC White +12 VBDC White +3.3 VDC* Orange +3.3 VDC*/SE* Orange –12 VDC Blue Black PS-ON Green...
  • Page 101   DC Peripheral Connectors P8 and P9       Pin Number Signal Name 18-AWG Wire +12 VBDC White Black Black +5 VDC Back to Contents Page  ...
  • Page 102 Back to Contents Page   Technical Overview Dell™ Dimension™ 5100 Service Manual   Inside View of Your Computer   System Board Components   Power Supply DC Connector Pin Assignments  Inside View of Your Computer   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 103  Power Supply DC Connector Pin Assignments   DC Main Power Connector P1...
  • Page 104       Pin Number Signal Name 18-AWG Wire +3.3 VDC* Orange +3.3 VDC* Orange Black +5VDC Black +5 VDC Black Gray +5 VFP Purple +12 VBDC White +12 VBDC White +3.3 VDC* Orange +3.3 VDC*/SE* Orange –12 VDC Blue Black PS-ON Green...
  • Page 105   DC Peripheral Connectors P8 and P9       Pin Number Signal Name 18-AWG Wire +12 VBDC White Black Black +5 VDC Back to Contents Page  ...
  • Page 106 Windows are registered trademarks of Microsoft Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
  • Page 107: Advanced Troubleshooting

      When to Use the Dell Diagnostics If you experience a problem with your computer, perform the checks in this section and run the Dell Diagnostics before you contact Dell for technical assistance. It is recommended that you print these procedures before you begin.
  • Page 108: Dell Diagnostics Main Menu

    NOTE: The Service Tag for your computer is located at the top of each test screen. If you contact Dell, technical support will ask for your Service Tag. Your computer's Service Tag is listed in the system information option in system setup.
  • Page 109: Diagnostic Lights

    A possible processor failure has occurred. Contact Dell (see your computer Owner's Manual for information about how to contact Dell). Memory modules are detected, but a memory  If you have two or more memory modules installed,...
  • Page 110: Beep Codes

    1. Write down the beep code.   2. Run the Dell Diagnostics to identify a more serious cause.   3. Contact Dell for technical assistance (see your computer Owner's Manual for information about how to contact Dell).     Code Cause 1-1-2...
  • Page 111 4-2-4 Unexpected interrupt in protected mode 4-3-1 Memory failure above address 0FFFFh 4-3-3 Timer-chip counter 2 failure 4-3-4 Time-of-day clock stopped 4-4-1 Serial or parallel port test failure 4-4-2 Failure to decompress code to shadowed memory 4-4-3 Math-coprocessor test failure 4-4-4 Cache test failure Back to Contents Page...
  • Page 112 The Drivers and Utilities CD (ResourceCD) is optional, and as such, may not ship with all computers.   When to Use the Dell Diagnostics If you experience a problem with your computer, perform the checks in this section and run the Dell Diagnostics before you contact Dell for technical assistance. NOTICE: The Dell Diagnostics works only on Dell™ computers.
  • Page 113 NOTE: The Service Tag for your computer is located at the top of each test screen. If you contact Dell, technical support will ask for your Service Tag. Your computer's Service Tag is listed in the system information option in system setup.
  • Page 114 A possible processor failure has occurred. Contact Dell (see your computer Owner's Manual for information about how to contact Dell). Memory modules are detected, but a memory  If you have two or more memory modules installed,...
  • Page 115 1. Write down the beep code.   2. Run the Dell Diagnostics to identify a more serious cause.   3. Contact Dell for technical assistance (see your computer Owner's Manual for information about how to contact Dell).     Code Cause 1-1-2...
  • Page 116 4-4-1 Serial or parallel port test failure 4-4-2 Failure to decompress code to shadowed memory 4-4-3 Math-coprocessor test failure 4-4-4 Cache test failure Back to Contents Page  ...

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