Dell Precision T7500 Service Manual
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Dell Precision T7500 Service Manual

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Dell Precision™ T7500 Service Manual
Diagnostics

Notes, Cautions, and Warnings

NOTE:
A NOTE indicates important information that helps you make better use of your computer.
CAUTION:
A CAUTION indicates potential damage to hardware or loss of data if instructions are not
followed.
WARNING:
A WARNING 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.
© 2009-2010 Dell Inc. All rights reserved.
Reproduction of this material in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Intel and Xeon are registered trademarks of
Intel Corporation; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license; Blu-ray Disc is a
trademark of the Blu-ray Disc Association; Microsoft, Windows, Windows Server, MS-DOS, Aero, Windows Vista. and the Windows Vista start
button are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
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 DCDO
February 2010
Rev. A01

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Summary of Contents for Dell Precision T7500

  • Page 1 Reproduction of this material in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Intel and Xeon are registered trademarks of Intel Corporation;...

  • Page 2: Working On Your Computer

    CAUTION: 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. CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface, such as a connector on the back of the computer.

  • Page 3: Turning Off Your Computer

    To connect a network cable, first plug the cable into the network device and then plug it into the computer. 3. Connect your computer and all attached devices to their electrical outlets. 4. Turn on your computer. 5. Verify that the computer works correctly by running the Dell Diagnostics. See Dell Diagnostics.

  • Page 4: Adding And Replacing Parts

    Adding and Replacing Parts Dell Precision™ T7500 Service Manual Cover Chassis Intrusion Switch Battery Drives Bezel Hard Drive Hard-drive Fan Hard-drive Cage Optical Drive Front Fan Assembly Rear Fan Memory Shroud Memory Expansion Cards Heat Sink and Processor Processor Fan...

  • Page 5: Specifications

    Specifications Dell Precision™ T7500/T7500n Service Manual Processors Drives System Information Connectors Memory Controls and Lights Video Power Audio Physical Expansion Bus Environmental NOTE: Offerings may vary by region. For more information regarding the configuration of your Tablet-PC, click Start (or Start in Windows XP)® Help and Support, and then select the option to view information about your Tablet-PC.
  • Page 6 Expansion Bus Bus type PCI Express 2.0 PCI 2.3 PCI-X 2.0A SATA 1.0 and 2.0 eSATA 2.0 USB 2.0 Bus speed 133 MB/s (PCI) x1-slot bidirectional speed - 500 MB/s (PCI Express) x16-slot bidirectional speed - 8 GB/s (PCI Express) 1.5 Gbps and 3.0 Gbps (SATA) 480-Mbps high speed, 12-Mbps full speed, 1.2 Mbps...
  • Page 7 Network adapter RJ-45 connector USB 2.0 compliant Two internal connectors Two in the front Six in the back Serial One 9-pin connector; 16550C- compatible Parallel One 25-pin connector eSATA One 7-pin eSATA connector Audio Stereo support integrated (5.1 channel support) NOTE: 5.1 channel support comes from an add-in card only PS/2...
  • Page 8 state; solid green for power-on state Drive activity light Green light — A blinking green light indicates the computer is reading data from or writing data to the hard drive or CD/DVD Network link light Green light — Solid green indicates connection to an active network Off (no light) —...
  • Page 9 Operating -15.2 to 3048 m (-50 to 10,000 ft) Storage -15.2 to 10,668 m (-50 to 35,000 ft) Airborne contaminant level G2 or lower as defined by ISA-S71.04- 1985...

  • Page 10: Dell Diagnostics

    2. When the DELL logo appears, press <F12> immediately. NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics from your Drivers and Utilities disc. If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft®...

  • Page 11: Power Button Light Codes

    4. When the tests are completed, if you are running the Dell Diagnostics from the Drivers and Utilities disc, remove the disc. 5. Close the test screen to return to the Main Menu screen. To exit the Dell Diagnostics and restart the computer, close the Main Menu screen.

  • Page 12: Diagnostic Light Codes

    the power supply is fine. Look at the diagnostic lights for further information. Blinking Green System is in a low power state, either S1 or S3. Look at the diagnostic lights to determine which state the system is in. Solid Green System is in S0 state, the normal power state of a functioning machine.

  • Page 13: Post Diagnostic Light Patterns

    1- Off 2- Green Reserved Reserved 3- Green 4- Off 1- Off ACPI S0, 2- Blink System on. BIOS not execution. This is the transition hand off to 3- Blink state to POST states. BIOS control 4- Blink 1- Green 2- Off Reserved Reserved...

  • Page 14: Beep Codes

    3- Solid failure was detected. 4- Off 1- Off Memory subsystem configuration activity is in progress. 2- Off Memory Appropriate memory modules were detected but a 3- Solid memory failure has occurred. 4- Solid 1- Off 2- Solid PCI device configuration activity is in progress or PCI PCI device 3- Off device failure was detected.
  • Page 15 System Beep Codes Beep Beep Description Description Code Code 1-1-2 CPU register test in progress 2-4-3 1st 64 K RAM chip or data line failure - bit E 1-1-3 CMOS read/write test in progress or failure 2-4-4 1st 64 K RAM chip or data line failure - bit F 1-1-4 BIOS ROM checksum in progress or failure 3-1-1...

  • Page 16: About Memory

    About Memory Dell Precision™ T7500 Service Manual Memory Modules Supported Memory Configurations Memory Subsystem Memory Slots Memory Population Rules WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

  • Page 17: Memory Slots

    Dual Processor Memory Configurations Size DIMM Riser Riser Riser Riser Riser Riser (GB) Ranks DIMM1 DIMM2 DIMM3 DIMM4 DIMM5 DIMM6 DIMM1 DIMM2 DIMM3 DIMM4 DIMM5 DIMM6 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB...

  • Page 18: Memory Population Rules

    In addition, the dual-processor riser features six additional memory slots. The slots are numbered DIMM1 through DIMM6. DIMM1 is furthest from the processor. Memory Population Rules Your computer requires DIMMs within a channel to be populated starting with the DIMMs farthest from the processor first. This means the DIMM slots 1, 2 and 3 must be populated before DIMM slots 4, 5 and 6.
  • Page 19 NOTE: If any DIMMs are >30mm tall (possible early 16GB DIMMs), they must be installed on the system board only.
  • Page 20 About Your System Board Dell Precision™ T7500 Service Manual System Board Schematic Clearing Forgotten Passwords Clearing CMOS Settings System Board Schematic Front Panel Audio Connector 1 SATA Connectors (SATA0-3) (FP_AUDIO) 2 Main Power Connector (POWER1) Type A USB Port (INT_USB2)

  • Page 21: Clearing Forgotten Passwords

    WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Clearing Forgotten Passwords 1. Remove the computer cover. 2. Locate the 4-pin password connector (PSWD) on the system board.
  • Page 22 Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. NOTE: The computer must be disconnected from the electrical outlet to clear the CMOS setting.

  • Page 23: System Setup

    Bypass the BIOS boot sequence and boot directly to the network Boot Menu As with previous Dell Precision™ workstation platforms, your computer includes a one-time boot menu. This feature offers a quick and convenient method with which to bypass the System Setup-defined boot device order and boot directly to a specific device (e.g., floppy, CD-ROM, or hard drive).
  • Page 24 The system setup screens display the current setup information and settings for your computer, such as: System configuration Boot order Boot (start-up) configuration Basic device configuration settings System security and hard drive password settings System Setup Navigation Keystrokes Use the following keystrokes to navigate the BIOS screens. Navigation Keystrokes Action Keystroke...

  • Page 25: Removing The Cover

    Cover Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Cover 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 26 3. Pull the cover away from the computer. 4. Remove the cover from the computer.

  • Page 28: Removing The Battery

    Battery Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Battery 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 29 5. Remove the coin-cell battery from the computer.

  • Page 31: Hard Drives

    Hard Drives Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Hard Drives 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 32 3. Disconnect the data cable and power cable from the first hard drive. 4. Squeeze together the blue hard drive assembly release tabs and hold.
  • Page 33 5. Remove the first hard drive assembly from the hard drive cage. 6. Remove the first hard drive assembly from the computer, then repeat for any other installed hard drives.
  • Page 35 Hard-drive Cage Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Hard-drive Cage 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 36 4. Remove the screws securing the first hard-drive cage to the chassis. 5. Remove the first hard-drive cage.
  • Page 37 6. Repeat the process for the second hard-drive cage.

  • Page 39: Front Fan Assembly

    Front Fan Assembly Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Front Fan Assembly 1.
  • Page 40 5. Remove the two screws securing the front fan assembly. 6. Rotate the fan assembly towards the center of the computer.
  • Page 41 7. Remove the fan assembly from the computer.
  • Page 43 Memory Shroud Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Memory Shroud 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 44 3. Remove the memory shroud from the computer.

  • Page 45: Expansion Cards

    Expansion Cards Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing an Expansion Card 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 46 3. Lift the expansion card retention clip away from the chassis. 4. Pull back the expansion card retention clip and remove the expansion card.

  • Page 48: Processor Fan

    Processor Fan Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Processor Fan 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 49 4. Disconnect the processor fan cable from the system board. 5. Release the metal retention clip from the system board on one end.
  • Page 50 6. Remove the chipset fan from the computer.
  • Page 52 Dual Processor Riser Guide Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Dual Processor Riser Guide 1.
  • Page 53 3. Use a long phillips head screw driver to remove the first screw located towards the center of the computer. 4. Remove the second screw using the phillips screwdriver.
  • Page 54 5. Remove the last screw that securies the riser guide to the computer. 6. Remove the riser guide from the computer.

  • Page 56: Power Supply

    Power Supply Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Power Supply 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 57 3. Disconnect the power supply cable from the back of the power supply. 4. Remove the four screws that secure the power supply to the computer.
  • Page 58 5. Slide the power supply toward the inside of the computer. 6. Remove the power supply from the computer at an angle.

  • Page 60: Chassis Intrusion Switch

    Chassis Intrusion Switch Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Chassis Intrusion Switch 1.
  • Page 61 3. Disconnect the intrusion switch cable from the system board. 4. Remove the intrusion switch cable from the retaining clip.
  • Page 62 5. Slide the intrusion switch toward the center of the computer. 6. Remove the intrusion switch from the computer.
  • Page 64 Hard-drive Bezel Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Hard-drive Bezel 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 65 3. Press the sliding-plate lever toward the base of the computer and release the drive bezel. 4. Remove the drive bezel.

  • Page 67: Hard Drive Fan

    Hard Drive Fan Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Hard Drive Fan 1.
  • Page 68 4. Disconnect the sata cable to allow the hard drive fan to slide out. 5. Depress the fan release tab and slide the hard drive fan down toward the system board, then remove the hard drive fan from the computer.

  • Page 70: Optical Drive

    Optical Drive Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Optical Drive 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 71 3. Disconnect the data cable and power cable from the back of the optical drive. 4. Press down on the sliding-plate lever and hold.
  • Page 72 5. Slide the optical drive out of the front of the chassis, and remove the optical drive from the computer.

  • Page 74: Rear Fan

    Rear Fan Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Rear Fan 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 75 3. Disconnect the rear memory fan cable from the system board. 4. From the outside of the computer, pull each of the four black rubber holders to release the fan from the computer.
  • Page 76 5. Remove the fan from the computer.

  • Page 78: Removing The Memory Modules

    Memory Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Your computer features an optional dual-processor riser to accommodate dual processor and expanded memory options...
  • Page 79 4. Press out on the securing clips at each end of the memory module connector. 5. Lift the memory module straight up and remove from the computer.

  • Page 81: Heat Sink And Processor

    Heat Sink and Processor Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Heat Sink and Processor 1.
  • Page 82 4. Loosen the four captive screws on the heat sink. 5. Remove the heat sink from the computer.
  • Page 83 6. Press down and out on the processor holder arm to release it. 7. Lift the processor cover.
  • Page 84 8. Remove the processor from the computer.
  • Page 86 Dual Processor Riser (Optional) Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Optional Dual Processor Riser 1.
  • Page 87 4. Carefully slide the dual processor riser halfway out. 5. Disconnect the power cable from the dual processor board.
  • Page 88 6. Remove the dual processor riser completely from the computer chassis. View of computer after dual processor removal.
  • Page 89 7. Disconnect the dual processor fan cable from the dual processor board. 8. While pressing on the blue release tab, remove the dual processor fan assembly from the dual processor assembly.
  • Page 90 9. Gently press down on the memory module release tabs to release the first dual processor memory module from the connector. 12. Remove the first memory module from the dual processor board, and repeat with any remaining memory modules.
  • Page 91 13. Disconnect the dual processor heat sink fan cable from the dual processor board. 14. Loosen the four captive screws on the dual processor heat sink/fan assembly.
  • Page 92 15. Remove the dual processor heat sink fan assembly from the dual processor board. 16. Release the dual processor cover by pressing down and out on the release arm.
  • Page 93 17. Open the dual processor cover. 18. Remove the dual processor from the dual processor board.

  • Page 95: Removing The I/O Panel

    I/O Panel Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the I/O Panel 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 96 5. Disconnect the data cable. 6. Disconnect the USB cable.
  • Page 97 7. Remove the screws securing the I/O panel to the computer chassis. 8. Remove the I/O panel from the computer.

  • Page 99: System Board

    System Board Dell Precision™ T7500 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the System Board 1. Follow the procedures in Before Working Inside Your Computer.
  • Page 100 8. Disconnect the rear fan cable. 9. Disconnect the front panel audio cable.
  • Page 101 10. Disconnect the intrusion switch cable. 11. Disconnect the 1394 cable.
  • Page 102 12. Disconnect the floppy cable. 13. Disconnect the I/O panel cable.
  • Page 103 14. Disconnect the hard drive fan cable. 15. Disconnect any hard drive data cables.
  • Page 104 16. Disconnect the power supply cable. 17. Disconnect the optical drive data cable.
  • Page 105 18. Disconnect the power supply data cable. 19. Remove the nine screws securing the system board.
  • Page 106 20. Slide the system board toward the front of the computer. 21. Lift the system board up at an angle towards the bottom of the computer.
  • Page 107 22. Remove the system board from the chassis.

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