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Dell Precision T7500, Service Manual

The Dell Precision T7500 is a powerful workstation designed for professional users. To ensure that you can make the most of its capabilities, we offer a comprehensive Service Manual. It provides step-by-step instructions on how to optimize and troubleshoot your device. Download this valuable manual for free from our website, ensuring a seamless experience with your Dell Precision T7500.

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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

.

2.  Remove the 

computer cover

.

3.  Remove the 

memory shroud

.

4.  Remove the 

heat sink and processor

.

5.  Remove the 

front fan assembly

.

6.  Remove the 

memory modules

.

7.  Remove the 

processor fan

.

Summary of Contents for Precision T7500

Page 1: ...d 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 tradema...

Page 2: ... a processor by its edges not by its pins CAUTION When you disconnect a cable pull on its connector or on its pull tab not on the cable itself Some cables have connectors with locking tabs if you are disconnecting this type of cable press in on the locking tabs before you disconnect the cable As you pull connectors apart keep them evenly aligned to avoid bending any connector pins Also before you ...

Page 3: ...d devices are turned off If your computer and attached devices did not automatically turn off when you shut down your operating system press and hold the power button for about 6 seconds to turn them off After Working Inside Your Computer After you complete any replacement procedure ensure you connect any external devices cards and cables before turning on your computer 1 Replace the computer cove...

Page 4: ...Drive Hard drive Cage Front Fan Assembly Memory Shroud Expansion Cards Processor Fan Dual Processor Riser Guide Power Supply Chassis Intrusion Switch Drives Bezel Hard drive Fan Optical Drive Rear Fan Memory Heat Sink and Processor Dual Processor Riser Optional I O Panel System Board ...

Page 5: ...cessor types Dual Core Intel Xeon Processor 5500 series Quad Core Intel Xeon Processor 5500 series System Information System chipset Intel 5500 5520 Data bus width 64 bits Memory Memory module connectors Six Twelve with optional riser Memory module capacities 1 GB 2 GB 4 GB 8 GB and 16 GB Memory type DDR3 1066 MHz SDRAM DDR3 1333 MHz SDRAM DDR3 800 MHz capable Minimum memory 1 GB Maximum memory 96...

Page 6: ...s each direction One PCI Express 2 0 x4 slot physical x16 Connector pins 164 pins Connector data width maximum 4 PCI Express lanes each direction One PCI Slot Connector pins 120 pins Connector data width maximum 32 bits One PCI X Slot Connector pins 188 pins Connector data width maximum 64 bits Drives Externally accessible Four 5 25 inch drive bays can support 3 5 inch flex bay Internally accessib...

Page 7: ...Card cage fan One 7 pin connector PCI One 120 pins connector PCI X One 188 pins connector PCI Express x16 Two 164 pin connectors PCI Express x8 Two 164 pin connectors physical x16 connector PCI Express x4 One 164 pin connector Front panel control One 10 pin connector Front panel USB One 10 pin connector Front panel audio HDA header One 10 pin connector Processor One connector Second connector on o...

Page 8: ...A good connection at 1000Mbs exists between the network and the computer Network activity light on integrated network adapter Yellow blinking light Power DC power supply Wattage 1100 W Voltage 100 240 VAC 50 60 Hz 12 0 A Coin cell battery 3V CR2032 lithium coin cell Physical Height 56 50 cm 22 25 inches Width 21 60 cm 8 50 inches Depth 55 30 cm 21 80 inches Weight at least 24 90 kg 55 lbs Environm...

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: ... 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 Windows desktop Then shut down your computer see Turning Off Your Computer and try again 3 When the boot device list appears highlight Boot to Utility Partition and press Enter 4 When the Dell Diagnostics Main Menu appears select the...

Page 11: ...ns encountered error codes and the problem description Help Describes the test and may indicate requirements for running the test Configuration Displays your hardware configuration for the selected device The Dell Diagnostics obtains configuration information for all devices from system setup memory and various internal tests and it displays the information in the device list in the left pane of t...

Page 12: ...normal operating condition after POST is for all four lights to be ON and then turn off as the BIOS hands over control to the operating system Pre POST Diagnostic Light Patterns State Light Pattern 1 2 3 4 Light Description Power Light State Assignment State Description Pb0a 1 Off 2 Off 3 Off 4 Off System Unplugged System is not plugged into AC PSU is not plugged into system board or control panel...

Page 13: ...tem board component or by a plug in device creating a short on a regulated power rail PS_ON asserted PS_PWRGOOD asserted SYS_PWRGOOD de asserted Pb13 1 Blink 2 Blink 3 Off 4 Blink Mismatch Hardware detected a population incompatibility with a critical system component such as CPU VRM PSU or MEMORY RISER Pb14 1 Green 2 Green 3 Green 4 Off Reserved Reserved Pb15 1 Green 2 Green 3 Green 4 Green Reser...

Page 14: ...ible or in an invalid configuration S11 1 Solid 2 Off 3 Solid 4 Solid PRV Other pre video activity Indicates routine system activity preceding video initialization S12 1 Solid 2 Solid 3 Off 4 Off CFG Resource configuration System resource configuration in progress S13 1 Solid 2 Solid 3 Off 4 Solid Reserved Reserved for future use This pattern is being considered to indicate the Visual Off state on...

Page 15: ...ry test in progress or failure 1 4 3 Fail safe timer test in progress 3 4 1 Screen initialization test in progress or failure 1 4 4 Software NMI port test in progress 3 4 2 Screen retrace tests test in progress or failure 2 1 1 1st 64 K RAM chip or data line failure bit 0 3 4 3 Search for video ROM in progress 2 1 2 1st 64 K RAM chip or data line failure bit 1 4 2 1 Timer tick interrupt test in pr...

Page 16: ...gigabit effectively enabling memory modules of maximum 16 gigabyte in size DDR3 memory comes with a promise of a power consumption reduction of 30 compared to current commercial DDR2 modules due to DDR3 s 1 5 V supply voltage This supply voltage works well with the 90 nm fabrication technology used for most DDR3 chips Some manufacturers further propose to use dual gate transistors to reduce leakag...

Page 17: ...hin a channel DIMM1 DIMM4 DIMM2 DIMM5 DIMM3 DIMM6 then the maximum DDR3 speed is reduced to 800 MHz Spreading Quad Rank memory modules accross multiple channels is recommended NOTE DDR3 DIMMs have 240 pins the same number as DDR2 and are the same size but are electrically incompatible and have a different key notch location Memory Subsystem The memory subsystem consists of three DDR3 memory channe...

Page 18: ...ting multiple DIMMs per channel The population guidelines below help to achieve this Single CPU configurations 6 DIMM slots on MB If configuration contains DIMMs of all the same size populate in the following order DIMM1 DIMM2 DIMM3 DIMM4 DIMM5 DIMM6 If configuration contains DIMMs of mixed sizes populate the larger DIMMs first For example for a 4GB configuration consisting of one 2GB DIMM and two...

Page 19: ...NOTE If any DIMMs are 30mm tall possible early 16GB DIMMs they must be installed on the system board only ...

Page 20: ...tten 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 ...

Page 21: ...password connector PSWD on the system board 3 Remove the 2 pin jumper plug from pins 3 and 4 and set the jumper plug aside 4 Replace the computer cover 5 Connect your keyboard and mouse then connect your computer and monitor to electrical outlets and turn them on 6 After the operating system loads turn the computer off Ensure that the computer is off and not in a power management mode If you canno...

Page 22: ...ector PSWD on the system board 3 Remove the 2 pin jumper plug from pins 3 and 4 4 Locate the 4 pin CMOS jumper RTCRST on the system board 5 Move the 2 pin jumper plug from the password jumper to pins 1 and 2 of the CMOS jumper 6 Plug in AC power to the system and wait ten seconds for the CMOS to clear 7 Move the 2 pin jumper plug back to pins 3 and 4 of the password jumper 8 Replace the computer c...

Page 23: ...cess Although the Ctrl Alt F8 keystroke still exists and can be used to call up the menu you can also simply press F12 during system boot to access the menu Diagnostics options The boot menu includes two diagnostic options IDE Drive Diagnostics 90 90 Hard Drive Diagnostics and Boot to the Utility Partition Entering System Setup Press F2 to enter System Setup and change the user definable settings ...

Page 24: ...ollowing keystrokes to navigate the BIOS screens Navigation Keystrokes Action Keystroke Expand and collapse field Enter left and right arrow keys or Expand or collapse all fields Exit BIOS Esc Remain in Setup Save Exit Discard Exit Change a setting Left and right arrow keys Select field to change Enter Cancel a modification Esc Reset defaults Alt F or Load Defaults menu option NOTE Depending on yo...

Page 25: ...ation 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 ...

Page 26: ...3 Pull the cover away from the computer 4 Remove the cover from the computer ...

Page 27: ......

Page 28: ...puter 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 ...

Page 29: ...5 Remove the coin cell battery from the computer ...

Page 30: ......

Page 31: ... 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 ...

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 34: ......

Page 35: ...hipped 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 ...

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 38: ......

Page 39: ...h 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 ...

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 42: ......

Page 43: ... 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 ...

Page 44: ...3 Remove the memory shroud from the computer ...

Page 45: ...d 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 ...

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 47: ......

Page 48: ...nformation 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 ...

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 51: ......

Page 52: ... 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 ...

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 55: ......

Page 56: ...ormation 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 ...

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 59: ......

Page 60: ... 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 ...

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 63: ......

Page 64: ... 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 ...

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 66: ......

Page 67: ...hipped 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 ...

Page 68: ...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 69: ......

Page 70: ... 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 ...

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 73: ...5 ...

Page 74: ... 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 ...

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 77: ......

Page 78: ... features an optional dual processor riser to accommodate dual processor and expanded memory options see Dual Processor Riser Optional Memory modules are removed from and installed into slots both on the system board or on the optional dual processor riser identically although only the slots located on the system board are illustrated below Removing the Memory Modules 1 Follow the procedures in Be...

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 80: ......

Page 81: ...nformation 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 ...

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 85: ......

Page 86: ...t 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 ...

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: ...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 94: ......

Page 95: ...h 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 ...

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 98: ......

Page 99: ...ty 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 2 Remove the computer cover 3 Remove the memory shroud 4 Remove the heat sink and processor 5 Remove the front fan assembly 6 Remove the memory modules 7 Remove the processor fan ...

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 ...

Page 108: ......

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