Dell Precision 3640 Tower Service Manual
  1. Manuals
  2. Brands
  3. Dell Manuals
  4. Desktop
  5. Precision 3640 Tower
  6. Service manual

Dell Precision 3640 Tower Service Manual

Hide thumbs Also See for Precision 3640 Tower:
Table of Contents

Advertisement

Quick Links

Precision 3640 Tower
Service Manual
0.0.0.0
Regulatory Model: D24M
Regulatory Type: D24M004
May 2020
Rev. A00

Advertisement

Table of Contents
loading

Related Manuals for Dell Precision 3640 Tower

Summary of Contents for Dell Precision 3640 Tower

  • Page 1 Precision 3640 Tower Service Manual 0.0.0.0 Regulatory Model: D24M Regulatory Type: D24M004 May 2020 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Contents Chapter 1: Working on your computer................... 6 Safety instructions................................6 Before working inside your computer........................6 Safety precautions.................................7 Electrostatic discharge—ESD protection........................7 ESD field service kit ..............................8 Transporting sensitive components.......................... 9 After working inside your computer..........................9 Chapter 2: Technology and components..................10 DDR4.....................................
  • Page 4 Graphics card..................................37 Removing the graphics card............................. 37 Installing the graphics card............................38 WLAN module and SMA antenna..........................39 Removing WLAN module and SMA antenna......................39 Installing WLAN module and SMA antenna......................41 IO panel....................................42 Removing the IO panel............................... 42 Installing the IO panel..............................43 Power button module...............................45 Removing the power button module........................
  • Page 5 Updating the BIOS using the USB drive in Windows....................82 Updating the BIOS in Windows............................82 WiFi power cycle................................82 Chapter 6: Getting help and contacting Dell................84 Appendix A: Optional IO card.......................86 Removing optional IO card..............................86 Installing the optional IO card ............................86 Appendix B: Cable cover ......................

  • Page 6: Chapter 1: Working On Your Computer

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

  • Page 7: Safety Precautions

    ESD protection is an increasing concern. Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.

  • Page 8: Esd Field Service Kit

    It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.

  • Page 9: Transporting Sensitive Components

    Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. Lifting equipment Adhere to the following guidelines when lifting heavy weight equipment: CAUTION: Do not lift greater than 50 pounds.

  • Page 10: Chapter 2: Technology And Components

    Technology and components This chapter details the technology and components available in the system. DDR4 DDR4 (double data rate fourth generation) memory is a higher-speed successor to the DDR2 and DDR3 technologies and allows up to 512 GB in capacity, compared to the DDR3's maximum of 128 GB per DIMM. DDR4 synchronous dynamic random-access memory is keyed differently from both SDRAM and DDR to prevent the user from installing the wrong type of memory into the system.

  • Page 11: Intel Rapid Storage Technology (Intel Rst)

    Matrix RAID. IRST allows for creation of two RAID volumes on a single RAID array where both the volumes can be of the same or different type. NOTE: Precision 3640 Tower does not support discreet RAID option. IRST encapsulates newer level of protection with better performance, and low power consumption. IRST user interface simplifies creation and management of storage assets.
  • Page 12 3. RAID 5 (Striping with Parity): In this RAID level, data is stripped into blocks and spread across three or more storage devices. Each block contains the data and a parity for fault tolerance. In an event of a drive failure, the parity helps build the lost piece of data. To further enhance the write performance, IRST uses Volume Write-Back Cache and Coalescer.
  • Page 13 ● IRST software ● Hard drive partition with at least 5 MB of free space Features of RAID-enabled computers: ● Intel Rapid Recover Technology - This technology provides full data redundancy by copying data from a designated source drive (active or main disk) to a designated destination drive (recovery disk). Data updates of recovery volumes can be continuous or on request.

  • Page 14: Raid Matrix

    RAID Matrix This section shows the different storage combination and the use of RAID level with those combinational array. ● Green: RAID across SSDs ● Yellow: RAID across Hard disk drives HDMI 2.0 This topic explains the HDMI 2.0 and its features along with the advantages. HDMI (High-Definition Multimedia Interface) is an industry-supported, uncompressed, all-digital audio/video interface.

  • Page 15: Usb Features

    players. The primary advantage is cable reduction and content protection provisions. HDMI supports standard, enhanced, or high-definition video, plus multichannel digital audio on a single cable. HDMI 2.0 Features ● HDMI Ethernet Channel - Adds high-speed networking to an HDMI link, allowing users to take full advantage of their IP-enabled devices without a separate Ethernet cable ●...
  • Page 16 ● Higher transfer rates (up to 5 Gbps) ● Increased maximum bus power and increased device current draw to better accommodate power-hungry devices ● New power management features ● Full-duplex data transfers and support for new transfer types ● Backward USB 2.0 compatibility ●...

  • Page 17: Pcie Add-In Cards

    With today's ever increasing demands placed on data transfers with high-definition video content, terabyte storage devices, high megapixel count digital cameras etc., USB 2.0 may not be fast enough. Furthermore, no USB 2.0 connection could ever come close to the 480Mbps theoretical maximum throughput, making data transfer at around 320 Mbps (40 MB/s) — the actual real-world maximum.

  • Page 18: Add-In Cards Matrix

    Add-in Cards Matrix This section describes the Add-in card connection configurations on the PCIe slots. Table 2. Add-in card connection matrix Zoom2 USB Type- Parallel/ Serial 1 Gb NIC 2.5 Gb NIC Intel Thunderbol Serial Ethernet t 3 PCIe 10 Gb Card X550-t (Dual port)

  • Page 19: Chapter 3: Major Components Of Your System

    14. Heatsink assembly NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options.

  • Page 20: Chapter 4: Disassembly And Reassembly

    Disassembly and reassembly Recommended tools The procedures in this document require the following tools: ● Phillips # 1 screwdriver ● Small flat blade screwdriver Screw list The following table provides the list of screws that are used for securing different components to the computer. Table 3.

  • Page 21: Cover

    Cover Removing the cover Prerequisites 1. Follow the procedure in before working inside your computer. About this task The following images indicate the location of the cover and provides a visual representation of the removal procedure. Steps 1. Remove the security screw (M#6.32x12.7), secured to the cover latch. 2.
  • Page 22 Steps 1. Align the hooks on the cover with the tabs on the chassis of the computer. Disassembly and reassembly...

  • Page 23: Psu Hinge

    2. Rotate the cover until it clicks into place. 3. Replace the single (M#6.32x12.7) security screw to secure the latch to the chassis. Next steps 1. Follow the procedure in after working inside your computer. PSU hinge Opening the PSU hinge Prerequisites 1.

  • Page 24: Closing The Psu Hinge

    Steps 1. Unlock the PSU by sliding the release latches to the 'Unlock' position. 2. Rotate the PSU hinge towards the front of the computer. Closing the PSU hinge Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the PSU hinge and provides a visual representation of the closing procedure.
  • Page 25 Steps 1. Rotate the PSU hinge towards the base of the computer. Disassembly and reassembly...

  • Page 26: Bezel

    2. Slide the release latches to 'Lock' position to secure the PSU hinge to the computer. Next steps 1. Install the cover. 2. Follow the procedure in after working inside your computer. Bezel Removing the bezel Prerequisites 1. Follow the procedure in before working inside your computer.

  • Page 27: Installing The Bezel

    Installing the bezel Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicate the location of the bezel and provides a visual representation of the installation procedure. Steps 1.

  • Page 28: Installing The Memory Module

    2. Remove the cover. 3. Open the hinge. About this task The following images indicate the location of the memory module and provides a visual representation of the removal procedure. Steps 1. Press the memory module retention tabs on each side of the memory module. 2.

  • Page 29: Hard Drive

    Steps 1. Align the notch on the memory module with the tab on the memory module connector of the system board. 2. Press the memory module until the retention tabs clicks into place. Next steps 1. Close the hinge. 2. Install the cover. 3.
  • Page 30 Steps 1. Lift the side of the PCIe holder to release it from the graphics card. Disassembly and reassembly...

  • Page 31: Removing The 2.5-Inch Hard Drive

    2. Slide the holder out from the slot in the chassis. 3. Disconnect the data and power SATA cables from the hard drive. 4. Press the blue securing bracket tabs and lift the hard drive assembly out of the hard drive bay. 5.

  • Page 32: Installing The 3.5-Inch Hard Drive

    Steps 1. Disconnect the data cables and the power SATA cables from the hard drive. 2. Press the blue securing bracket tabs and lift the hard drive assembly out of the hard drive bay. 3. Flex the hard drive bracket, to disengage the pins. 4.
  • Page 33 Steps 1. Align the pins on the hard drive bracket with the pits on one side of the hard disk drive. Disassembly and reassembly...

  • Page 34: Installing The 2.5-Inch Hard Drive

    2. Place the hard disk drive into the bracket. 3. Slide the hard drive assembly into the hard drive bay slot of the computer chassis. 4. Connect the data and power SATA cables to the hard disk drive. 5. Insert the PCIe card holder into the slot on the chassis. 6.

  • Page 35: Optical Drive

    Steps 1. Align the securing pins in the hard drive bracket with the pits on the 2.5-inch hard drive. 2. Firmly press the 2.5-inch hard drive into the bracket until it clicks in place. 3. Replace the hard drive assembly into the hard drive bay and press it firmly into the slot. 4.

  • Page 36: Installing The Optical Drive

    Steps 1. Disconnect the data cable and the power cable from the optical drive. 2. Push the optical drive out from the front of the computer. 3. Slide and remove the optical drive out of the computer. Installing the optical drive Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 37: Graphics Card

    Steps 1. Slide the optical drive into the drive bay from the front of the computer until it is secured. 2. Connect the data cable and power cable to the optical drive. Next steps 1. Install the bezel. 2. Close the hinge.

  • Page 38: Installing The Graphics Card

    Steps NOTE: A PCIe holder may not be required for computer that is shipped with NVIDIA Quadro P4000 or RTX4000 dual graphics cards configuration. Lift the side of the PCIe holder to release it from the graphics card and slide the holder out from the slot in the chassis. 2.

  • Page 39: Wlan Module And Sma Antenna

    Steps 1. Insert the graphics card into the PCIe slot on the system board. NOTE: Connect the graphics-card power cable to the connector on the graphics card for a single graphics card configuration. 2. Insert the PCIe card holder into the slot on the chassis and press it firmly to secure the holder to the top of the graphics card.
  • Page 40 Steps 1. Remove the single (M2x3.5) screw that secures the WLAN card to the system board and undo the antenna cables from the rubber guides on the system board. 2. Slide and remove the external antenna connector from the PCIe slot on the chassis. 3.

  • Page 41: Installing Wlan Module And Sma Antenna

    5. Gently remove the antenna cables from the connectors on the WLAN card. 6. Separate the WLAN module and SMA antenna. Installing WLAN module and SMA antenna Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the WLAN module and SMA antenna and provides a visual representation of the installation procedure.

  • Page 42: Io Panel

    Steps 1. Assemble the WLAN module with the SMA antenna. 2. Connect the antenna cable to the WLAN module. 3. Replace the plastic bracket on the antenna connectors of the WLAN module. 4. Insert the WLAN module into the M.2 slot on the system board. 5.

  • Page 43: Installing The Io Panel

    Steps 1. Disconnect the IO audio cable from the connector on the system board and undo the cable from routing guides next to the system board on the chassis 2. Disconnect the following cables from their respective connectors on the system board: a.
  • Page 44 Steps 1. Insert the cables through the IO panel slot on the chassis. 2. Insert the IO panel tabs into the slots on the computer chassis and replace the single (#6-32x1/4') screw to secure the IO panel to the computer. 3.

  • Page 45: Power Button Module

    Power button module Removing the power button module Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the hinge. 4. Remove the bezel. 5. Remove the panel. About this task The following images indicate the location of the power button module and provides a visual representation of the removal procedure.

  • Page 46: Speaker

    Steps 1. Insert the power button module into its slot on the system and press the notches and secure it to the system. 2. Affix the adhesive tape to secure the power button module to the system. 3. Route the power button module cable through the routing clips on the system. 4.

  • Page 47: Installing The Speaker

    Steps 1. Disconnect the speaker cable from the system board and undo the cable from the routing guides on the system board. 2. Press the release tab and pull the speaker out of the computer. Installing the speaker Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicate the location of the speaker and provides a visual representation of the installation procedure.

  • Page 48: Intrusion Switch

    Steps 1. Replace the speaker into its slot in the chassis and slide it until it clicks in place. 2. Tuck the cable along the routing guide on the system board and connect the speaker cable to the system board. Next steps 1.

  • Page 49: Installing The Intrusion Switch

    Steps 1. Disconnect the intrusion switch cable from the connector on the system board and undo the cable that is routed along the clips on the chassis. 2. Slide the intrusion switch and push it to remove it from its slot in the chassis. Installing the intrusion switch Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 50: Solid State Drive

    Steps 1. Replace the intrusion switch into its slot in the chassis and slide it in to secure it to the chassis. 2. Route the intrusion switch cable through the routing clips on the chassis and connect the cable to the system board. Next steps 1.

  • Page 51: Installing The Solid State Drive

    Steps 1. Remove the single (M2x2.5) screw that secures the solid state drive to the system board. 2. Slide the solid state drive and remove it from the system board. Installing the solid state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicate the location of the solid state drive and provides a visual representation of the installation procedure.

  • Page 52: Coin Cell Battery

    Steps 1. Align the notch on the M.2 slot on the system board with that on the solid state drive and slide the solid state drive into the system board. 2. Replace the single (M2x2.5) screw to secure the solid state drive to the system board. Next steps 1.

  • Page 53: Installing The Coin Cell Battery

    Steps 1. Use a scribe to press the release latch until the coin cell battery pops out of the system board. 2. Remove the coin cell battery from the connector on the system board. Installing the coin cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 54: Power Supply Unit

    Steps 1. Hold the coin cell battery with the "+" sign facing up and slide it under the securing tabs of the connector on the system board. 2. Press the battery into the connector until it locks into place. Next steps 1.

  • Page 55: Installing The Power Supply Unit

    Steps 1. Lift the side of the PCIe holder to release it from the graphics card and slide the holder out from the slot in the chassis. 2. Remove the two #6-32x1/4 screws that secure the power-supply bracket to the chassis and lift the power-supply bracket from the system.
  • Page 56 Steps 1. Insert the PSU into the PSU slot and slide it towards the back of the computer until it clicks into place. 2. Replace the four #6-32x1/4 screws to secure the PSU to the computer. 3. Place the power supply bracket and tighten the two #6-32x1/4 screws to secure the PSU to the computer. 4.

  • Page 57: Front Fan

    Front fan Removing the front fan Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the hinge. About this task The following images indicate the location of the front fan and provides a visual representation of the removal procedure. Steps 1.

  • Page 58: Installing The Front Fan

    Installing the front fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the front fan and provides a visual representation of the installation procedure. Steps 1.

  • Page 59: Top Fan

    Top fan Removing the top fan Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the hinge. About this task The following images indicate the location of the top fan and provides a visual representation of the removal procedure. Steps 1.

  • Page 60: Installing The Top Fan

    3. Slide and remove the fan along with the bracket from the chassis. 4. Pry and separate the fan from the fan bracket. Installing the top fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the top fan and provides a visual representation of the installation procedure.

  • Page 61: Heatsink Assembly

    Next steps 1. Close the hinge. 2. Install the cover. 3. Follow the procedure in after working inside your computer. Heatsink assembly Removing the heatsink assembly Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3.
  • Page 62 Disassembly and reassembly Figure 5. Heatsink assembly - 125 W CPU...

  • Page 63: Installing The Heatsink Assembly

    Steps 1. Disconnect the heatsink fan cable from the connector on the system board. NOTE: Loosen the screws in a sequential order (1,2,3,4) as mentioned on the system board. Loosen the four captive screws that secure the heatsink assembly and lift it from the system board. Installing the heatsink assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 64 Figure 7. Heatsink assembly - 125 W CPU Steps 1. Replace the heatsink assembly on the top of processor preassembled with thermal gel. NOTE: Tighten the screws in a sequential order (1,2,3,4) as mentioned on the system board. Disassembly and reassembly...

  • Page 65: Voltage Regulator Heat Sink

    Tighten the four captive screws that secure the heat sink assembly and lift it from the computer. 3. Replace the system fan on top of the heat sink assembly and tighten the four captive screws and connect the fan cable to the system board.

  • Page 66: Installing The Voltage Regulator Heat Sink

    Figure 9. VR heatsink assembly for systems shipped with 125 W CPU Steps 1. Loosen the captive screws that secure the VR heatsink to the system board. 2. Lift the VR heatsink from the system board. Installing the voltage regulator heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 67 Figure 10. VR heatsink assembly for systems shipped with 65 W or 80 W CPU Figure 11. VR heatsink assembly for systems shipped with 125 W CPU Steps 1. Align and replace the VR heatsink on the system board. 2. Tighten the captive screws that secure the VR heatsink to the system board. Disassembly and reassembly...

  • Page 68: Processor

    Next steps 1. Install the heat sink assembly. 2. Install the solid state drive. 3. Install the graphics card. 4. Close the hinge. 5. Install the cover. 6. Follow the procedure in after working inside your computer. Processor Removing the processor Prerequisites 1.

  • Page 69: Installing The Processor

    Steps 1. Gently press the CPU lever and release it from the latch mechanism. 2. Open the lever clockwise to lift the processor shield. 3. Carefully lift the processor out of the slot on the system board. Installing the processor Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 70: System Board

    2. Close the hinge. 3. Install the cover. 4. Follow the procedure in after working inside your computer. System board Removing the system board Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the hinge.
  • Page 71 Disassembly and reassembly...

  • Page 72: Installing The System Board

    Steps 1. Disconnect and remove the following cables from the system board: a. System fan cable b. Intrusion cable c. I/O panel cable d. CPU power cable e. System board power connector cable f. SD card cable g. Type-C cable h.
  • Page 73 Disassembly and reassembly...
  • Page 74 Steps 1. Slide the I/O ports on the system board into the slots on the chassis placing the system board in the chassis and replace the eight (#6-32) screws to secure the system board to the chassis. 2. Connect the following cables to the system board connectors: a.

  • Page 75: System Board Layout

    System board layout This topic illustrates the system board layout and calls out the ports and connectors on the system board. 1. Optional I/O card connector 2. ATX PSU power connector : ATX CPU 3. CPU socket 4. Coin-cell battery 5.
  • Page 76 28. M.2 2230 PCIe x1 slot, keyed E for WiFi and Bluetooth card Disassembly and reassembly...

  • Page 77: Chapter 5: Troubleshooting

    Real-Time Clock (RTC Reset) The Real Time Clock (RTC) reset function allows you or the service technician to recover Dell Inspiron, systems from No POST/No Power/No Boot situations. The legacy jumper enabled RTC reset has been retired on these models.

  • Page 78: Diagnostic Error Messages

    CACHE DISABLED DUE TO FAILURE The primary cache internal to the microprocessor has failed. Contact Dell CD DRIVE CONTROLLER FAILURE The optical drive does not respond to commands from the computer.
  • Page 79 Then, shut down the computer, reinstall the hard drive, and restart the computer. If the problem persists, try another drive. Run the Hard Disk Drive tests in Dell Diagnostics. INSERT BOOTABLE MEDIA The operating system is trying to boot to non-bootable media, such as an optical drive.
  • Page 80 The operating system cannot find a specific track on the hard drive. SHUTDOWN FAILURE A chip on the system board may be malfunctioning. Run the System Set tests in Dell Diagnostics. If the message reappears, Contact Dell. TIME-OF-DAY CLOCK LOST POWER System configuration settings are corrupted. Connect your computer to an electrical outlet to charge the battery.

  • Page 81: System Error Messages

    Recovering the operating system When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell SupportAssist OS Recovery. Troubleshooting...

  • Page 82: Updating The Bios Using The Usb Drive In Windows

    It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state. You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary operating system due to software or hardware failures.
  • Page 83 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7. Turn on your computer. Troubleshooting...

  • Page 84: Chapter 6: Getting Help And Contacting Dell

    Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 8. Self-help resources Self-help resources Resource location Information about Dell products and services https://www.dell.com/ Dell Support Tips...
  • Page 85 Dell product catalog. Availability varies by country/region and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1.

  • Page 86: Appendix A: Optional Io Card

    Optional IO card Removing optional IO card About this task NOTE: You may see one of these cards-HDMI/DisplayPort/VGA/Type-C based on the additional component you may have ordered with the system. Steps 1. Follow the procedure in Before working inside your computer.
  • Page 87 2. Insert the IO card into its slot from the inside of your computer [1] and replace the two M3X3 screws to secure the IO card to the system [2]. 3. Connect the IO card cable to the connector on the system board [3]. 4.

  • Page 88: Appendix B: Cable Cover

    Cable cover The cable cover for Precision Tower 3640 helps protect ports and cables connected to the system. About this task Follow these steps to install the cable cover on the system chassis. NOTE: Images shown below are for representation only and may vary depending on the system's configuration. Steps 1.
  • Page 89 4. Lift the tab [1] to release and pull the cable tie from the slot on the cable release latch [2]. 5. Align the cable release latch on the system chassis slot [1]. Tighten the screw to secure the cable release latch to the system chassis [2].
  • Page 90 6. Route the cables through the slot of the cable cover [1], and connect them to their respective ports on the system [2]. Secure the cable with the cable tie and lock the tab in place [3]. CAUTION: Take care not to break or bend the delicate plastic hooks. 7.
  • Page 91 8. Gently press down on the cable cover until it clicks into place [1]. Slide the latch towards the chassis [2] to lock the cable cover in place. NOTE: For added security, use the Padlock ring to secure the system. 9.
  • Page 92 10. Pull the cable cover to release it from the chassis. 11. Open the tab and unroute the cables from cable tie [1], disconnect the cables from the ports on the system [2]. Remove the cables from the slot of the cable cover [3]. Cable cover...
  • Page 93 Cable cover...

  • Page 94: Appendix C: Dust Filter

    Dust filter The dust filter for the Precision Tower 3640 helps protect the system from fine dust particles. After installation of the dust filter, the BIOS can be enabled to generate a preboot reminder to clean or replace the dust filter based on the time interval set. About this task Follow these steps to install the dust filter: Steps...
  • Page 95 3. Restart the system and press F2 to enter the BIOS Setup menu. 4. In the BIOS Setup menu, navigate to System Configuration > Dust Filter Maintenance and select from any of the following intervals: 15, 30, 60, 90, 120, 150, or 180 days. NOTE: Default setting: Disabled.

  • Page 96: Appendix D: Chassis Rubber Feet

    Chassis rubber feet Removing the chassis rubber feet Steps 1. Follow the procedure in Before Working Inside Your Computer. 2. Pull one end of rubber feet out of the slot [1] and slide the rubber feet to remove it from the system [2]. Figure 12.

  • Page 97: Installing The Chassis Rubber Feet

    Figure 13. Rear rubber feet removal Installing the chassis rubber feet Steps 1. Insert one end of the rubber feet into the slot [1] and slide it to secure it to the system [2] and press the other end to secure it to the system [3].
  • Page 98 Figure 14. Front rubber feet installation Chassis rubber feet...
  • Page 99 Figure 15. Rear rubber feet installation 2. Follow the procedure in After Working Inside Your Computer. Chassis rubber feet...

This manual is also suitable for:

D24m

Table of Contents