Dell Precision™ T7500 Service Manual Working on Your Computer Adding and Replacing Parts Specifications Diagnostics About Memory About Your System Board System Setup 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.
Working on Your Computer Dell Precision™ T7500 Service Manual Before Working Inside Your Computer Recommended Tools Turning Off Your Computer After Working Inside Your Computer Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety.
Phillips screwdriver Small plastic scribe Flash BIOS update program CD (see the Dell Support website at support.dell.com) Turning Off Your Computer CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer. 1. Shut down the operating system: In Windows Vista: , then click the arrow in the lower-right corner of the Start menu as shown below, and then Click Start click Shut Down. In Windows XP: Click Start® Turn Off Computer® Turn Off.
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 Dual Processor Riser (Optional) Dual Processor Riser Guide I/O Panel Power Supply System Board
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.
Expansion Bus Bus type PCI Express 2.0 PCI 2.3 PCI-X 2.0A SATA 1.0 and 2.0 eSATA 2.0 SAS 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 low speed (USB) Two PCI Express 2.0 x16 slots (video) Connector pins 164 pins Connector data width (maximum) 16 PCI Express lanes (each direction) Two PCI Express 2.
Network adapter RJ-45 connector USB USB 2.0 compliant Two internal connectors Two in the front Six in the back Serial One 9-pin connector; 16550Ccompatible Parallel One 25-pin connector eSATA One 7-pin eSATA connector Audio Stereo support integrated (5.1 channel support) NOTE: 5.
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) — System is not connected to a network Back of the computer Link integrity light (on integrated network adapter) Off — The computer is not detecting a physical connection to the network Green — A good connection at 10Mbs
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.
Diagnostics Dell Precision™ T7500 Service Manual Dell Diagnostics Power Button Light Codes Diagnostic Light Codes Pre-POST Diagnostic Light Patterns POST Diagnostic Light Patterns Beep Codes Dell Diagnostics When to Use the Dell Diagnostics It is recommended that you print these procedures before you begin. NOTE: The Dell Diagnostics software works only on Dell computers. NOTE: The Drivers and Utilities disc is optional and may not ship with your computer.
6. Select Run the 32 Bit Dell Diagnostics from the numbered list. If multiple versions are listed, select the version appropriate for your computer. 7. When the Dell Diagnostics Main Menu appears, select the test you want to run. Dell Diagnostics Main Menu 1. After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want. Option Function Express Test Performs a quick test of devices.
the power supply is fine. Look at the diagnostic lights for further information. Blinking Green Solid 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. System is in S0 state, the normal power state of a functioning machine. The BIOS will turn the light to this state to indicate it has started fetching opcodes.
Pb6 1234- Off Green Green Off Pb7 1234- Off Blink Blink Blink Pb8 1234- Green Off Off Off Pb9 1234- - Reserved Reserved ACPI S0, System on. BIOS not execution. This is the transition hand off to state to POST states. BIOS control - Reserved Reserved Blink Off Off Blink Non-System board Regulator Failure A power failure has been detected on a plug-in component such as VRM, Video Riser, or Memory Riser.
S2 3- Solid 4- Off CPU CPU failure was detected. S3 1234- Off Off Solid Solid MEM Memory Memory subsystem configuration activity is in progress. Appropriate memory modules were detected but a memory failure has occurred. S4 1234- Off Solid Off Off PCI PCI device PCI device configuration activity is in progress or PCI device failure was detected. S5 1234- Off Solid Off Solid VID Video Card Video subsystem configuration activity in progress or video subsystem failure.
System Beep Codes Beep Code Description Beep Code Description 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 Slave DMA register test in progress or failure 1-2-1 Timer Test in progress or failure 3-1-2 Master DMA register test in progress or failure 1-2-2 DMA initialization in progress or fai
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. Your computer uses 1066 MHz and 1333Mhz DDR3 unbuffered or registered ECC SDRAM memory.
Dual Processor Memory Configurations Size (GB) DIMM Ranks MB DIMM1 MB DIMM2 MB DIMM3 MB DIMM4 3 SR 1 GB 1 GB 1 GB 4 SR 1 GB 1 GB 1 GB 1 GB 6 SR 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB 8 MR 2 GB 1 GB 1 GB 2 GB 1 GB 1 GB 12 SR 2 GB 2 GB 2 GB 2 GB 2 GB 2 GB 24 DR 4 GB 4 GB 4 GB 4 GB 4 GB 4 GB 24 SR 2 GB 2 GB 2 GB 2 GB 2 GB 2 GB 48 DR 8 GB 8 GB 8 GB 8 GB 8 GB 8 GB 48 DR 4 GB 4 GB 4 GB 4 GB 4 GB 4 GB 4 GB 4 GB 96 DR 8 GB 8 GB 8 GB 8 GB 8 GB
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.
NOTE: If any DIMMs are >30mm tall (possible early 16GB DIMMs), they must be installed on the system board only.
About Your System Board Dell Precision™ T7500 Service Manual System Board Schematic Clearing Forgotten Passwords Clearing CMOS Settings System Board Schematic 1 SATA Connectors (SATA0-3) 18 Front Panel Audio Connector (FP_AUDIO) 2 Main Power Connector (POWER1) 19 Type A USB Port (INT_USB2) 3 SAS Connectors (HDD0-3) 20 Rear Fan Connector (FAN_REAR) 4 Hard Drive Fan Connector (FAN_HDD) 21 CPU Riser 2 (CPU2_RSR2)
5 Password Jumper (PSWD) 22 CPU Riser 1 (CPU_RSR1) 6 Hard Drive Fan Connector (FAN_HDD2) 23 Primary Processor Connector (CPU1) 7 Floppy Drive (DSKT) 24 Power Connector (POWER_CPU1) 8 Front Panel Connector (FRONTPANEL) 25 Front Fan Connector (FAN_FRONT) 9 Front Panel 1394 Connector (FP_1394) 26 Card Cage Fan (FAN_CCAG) 10 Chassis Intrusion Header (INTRUDER) 27 Memory Module Connectors (DIMM1-6) 11 PCI-X Card Slot (SLOT7) 28 Optional Serial/PS2 Connector (SERIAL2) 12 PCI Express 2
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. NOTE: The computer must be disconnected from the electrical outlet to clear the CMOS setting. 1. 2. 3. 4. 5. 6. 7. 8. 9. Remove the computer cover. Locate the 4-pin password connector (PSWD) on the system board. Remove the 2-pin jumper plug from pins 3 and 4.
System Setup Dell Precision™ T7500 Service Manual POST Keystrokes Boot Menu Entering System Setup System Setup Navigation Keystrokes POST Keystrokes Your computer has several keystroke options available during the POST process at the Dell™ Logo screen. Keystroke Function Description < F2> Enter System Setup Use System Setup to make changes to the user-definable settings.
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.
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. 2. Slide the cover release latch toward the back of the computer.
3. Pull the cover away from the computer. 4. Remove the cover from the computer.
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. 2. Remove the computer cover. 3. Remove the memory shroud. 4. Use a small screw driver or a scribe to press the coin-cell release tab.
5. Remove the coin-cell battery from the computer.
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. 2. Remove the computer cover.
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.
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.
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. 2. Remove the computer cover. 3. Remove any installed hard drives and the hard-drive guides.
4. Remove the screws securing the first hard-drive cage to the chassis. 5. Remove the first hard-drive cage.
6. Repeat the process for the second hard-drive cage.
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. Follow the procedures in Before Working Inside Your Computer. 2. Remove the computer cover. 3. Remove the memory shroud. 4. Disconnect the two fan cables from the system board.
5. Remove the two screws securing the front fan assembly. 6. Rotate the fan assembly towards the center of the computer.
7. Remove the fan assembly from the computer.
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. 2. Remove the computer cover.
3. Remove the memory shroud from the computer.
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. 2. Remove the computer cover.
3. Lift the expansion card retention clip away from the chassis. 4. Pull back the expansion card retention clip and remove the expansion card.
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. 2. Remove the computer cover. 3. Remove the memory shroud.
4. Disconnect the processor fan cable from the system board. 5. Release the metal retention clip from the system board on one end.
6. Remove the chipset fan from the computer.
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. Follow the procedures in Before Working Inside Your Computer. 2. Remove the computer cover.
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.
5. Remove the last screw that securies the riser guide to the computer. 6. Remove the riser guide from the computer.
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. 2. Remove the computer cover. 3. Remove the hard-drive cages.
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.
5. Slide the power supply toward the inside of the computer. 6. Remove the power supply from the computer at an angle.
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. Follow the procedures in Before Working Inside Your Computer. 2. Remove the computer cover.
3. Disconnect the intrusion switch cable from the system board. 4. Remove the intrusion switch cable from the retaining clip.
5. Slide the intrusion switch toward the center of the computer. 6. Remove the intrusion switch from the computer.
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. 2. Remove the computer cover.
3. Press the sliding-plate lever toward the base of the computer and release the drive bezel. 4. Remove the drive bezel.
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. Follow the procedures in Before Working Inside Your Computer. 2. Remove the computer cover. 3. Disconnect the hard drive fan cable from the system board.
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.
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. 2. Remove the computer cover.
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.
5. Slide the optical drive out of the front of the chassis, and remove the optical drive from the computer.
5.
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. 2. Remove the computer cover.
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.
5. Remove the fan from the computer.
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 (see Dual Processor Riser (Optional)).
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.
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. Follow the procedures in Before Working Inside Your Computer. 2. Remove the computer cover. 3. Remove the memory shroud.
4. Loosen the four captive screws on the heat sink. 5. Remove the heat sink from the computer.
6. Press down and out on the processor holder arm to release it. 7. Lift the processor cover.
8. Remove the processor from the computer.
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. Follow the procedures in Before Working Inside Your Computer. 2. Remove the computer cover. 3. Pull down on the dual processor riser release lever.
4. Carefully slide the dual processor riser halfway out. 5. Disconnect the power cable from the dual processor board.
6. Remove the dual processor riser completely from the computer chassis. View of computer after dual processor removal.
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.
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.
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.
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.
17. Open the dual processor cover. 18. Remove the dual processor from the dual processor board.
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. 2. Remove the computer cover. 3. Remove the front fans assembly. 4. Disconnect the audio cable from the I/O Panel.
5. Disconnect the data cable. 6. Disconnect the USB cable.
7. Remove the screws securing the I/O panel to the computer chassis. 8. Remove the I/O panel from the computer.
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. 2. 3. 4. 5. 6. 7. Follow the procedures in Before Working Inside Your Computer. Remove the computer cover. Remove the memory shroud. Remove the heat sink and processor.
8. Disconnect the rear fan cable. 9. Disconnect the front panel audio cable.
10. Disconnect the intrusion switch cable. 11. Disconnect the 1394 cable.
12. Disconnect the floppy cable. 13. Disconnect the I/O panel cable.
14. Disconnect the hard drive fan cable. 15. Disconnect any hard drive data cables.
16. Disconnect the power supply cable. 17. Disconnect the optical drive data cable.
18. Disconnect the power supply data cable. 19. Remove the nine screws securing the system board.
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.
22. Remove the system board from the chassis.
