Precision 3640 Tower Service Manual 0.0.0.0 Regulatory Model: D24M Regulatory Type: D24M004 August 2021 Rev.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2020-2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Working on your computer........................................................................................... 6 Safety instructions.............................................................................................................................................................. 6 Before working inside your computer....................................................................................................................... 6 Safety precautions...................
Graphics card..................................................................................................................................................................... 37 Removing the graphics card..................................................................................................................................... 37 Installing the graphics card.......................................................................................................................................
Diagnostic error messages.............................................................................................................................................. 78 System error messages.................................................................................................................................................... 81 Recovering the operating system..................................................................................................................................
1 Working on your computer Safety instructions Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that you have read the safety information that shipped with your computer. WARNING: Before working inside your computer, read the safety information that is shipped with your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.
4. Disconnect all the network cables from the computer. CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device. 5. Disconnect your computer and all attached devices from the electrical outlets. 6. Press and hold the power button while the computer is unplugged to ground the system board.
The more difficult type of damage to recognize and troubleshoot is the intermittent (also called latent or "walking wounded") failure. Perform the following steps to prevent ESD damage: ● Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provide adequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage.
ESD protection summary 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.
2 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.
Figure 3. Curved edge Memory Errors Memory errors on the system display 2,3 failure code. If all memory fails, the LCD does not turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory connectors on the bottom of the system or under the keyboard, as in some portable systems. NOTE: The DDR4 memory is imbedded in board and not a replaceable DIMM as shown and referred.
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.
● 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. ● Intel Rapid RAID : - This technology allows creation of RAID 0, RAID 1, RAID 5, and RAID 10 volumes on desktop and mobile platforms.
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.
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.
● ● ● ● ● ● 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 New connectors and cable The topics below cover some of the most commonly asked questions regarding USB 3.2 Gen 1. USB 3.2 Gen 2 (SuperSpeed USB) For years, the USB 2.
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. Similarly, USB 3.0/USB 3.1 Gen 1 connections will never achieve 4.8Gbps.
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 TypeC Parallel/ Serial Serial 1 Gb NIC 2.5 Gb NIC Intel Thunderbol Ethernet t 3 PCIe 10 Gb Card X550-t (Dual port) Lane width x8 x1 x1 x1 x1 x1 x1 x4 Slot size SW (Single width) Card height HH (Half Height) Generation 3.0 3.0 2.0 2.0 2.0 3.0 3.0 3.0 Power 25 W 18.
3 Major components of your system 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. Cover System fan IO panel Power button module Optical drive Hard drive Bezel Hard drive Chasis Power supply unit System board Front fan Processor 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.
4 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.
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. Pull the release latch to release the cover. 3. Rotate the cover and lift the cover to remove it from the computer.
Steps 1. Align the hooks on the cover with the tabs on the chassis of the computer.
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. Follow the procedure in before working inside your computer. 2. Remove the cover. About this task The following images indicate the location of the PSU hinge and provides a visual representation of the opening procedure.
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.
Steps 1. Rotate the PSU hinge towards the base of the computer.
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. 2. Remove the cover. About this task The following images indicate the location of the bezel and provides a visual representation of the removal procedure. Steps 1. Pry the retention tabs to release the front bezel. 2.
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. Hold the bezel and ensure that the hooks on the bezel align with notches on the computer. 2. Rotate the front bezel toward the computer and press firmly until the tabs click into place. Next steps 1. Install the cover.
2. Remove the cover. 3. Open the psu 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. Lift the memory module out of the connectors on the system board. Installing the memory module Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
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 psu hinge. 2. Install the cover. 3. Follow the procedure in after working inside your computer. Hard drive Removing the 3.5-inch hard drive Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the psu hinge.
Steps 1. Lift the side of the PCIe holder to release it from the graphics card.
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. Flex the hard drive bracket, to disengage the pins. 6. Slide the 3.5-inch hard disk drive out of the bracket. Removing the 2.5-inch hard drive Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover.
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. Slide out from the 2.5-inch hard drive out of the bracket. Installing the 3.5-inch hard drive Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Align the pins on the hard drive bracket with the pits on one side of the hard disk 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. Press the PCIe card holder firmly to secure the holder to the top of the graphics card. Next steps 1. Close the psu hinge. 2. Install the cover. 3. Follow the procedure in after working inside your computer. Installing the 2.
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. Connect the power and data SATA cables to the 2.5-inch hard drive. Next steps 1. Install the cover. 2. Follow the procedure in after working inside your computer. Optical drive Removing the optical drive Prerequisites 1. 2. 3. 4.
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. About this task The following images indicate the location of the optical drive and provides a visual representation of the installation procedure.
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. 2. 3. 4. Install the bezel. Close the psu hinge. Install the cover. Follow the procedure in after working inside your computer. Graphics card Removing the graphics card Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the psu hinge.
Steps 1. 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. Push the card retention latch away from the card and lift the graphics card out of the PCIe slot of the system board.
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. Next steps 1. Close the psu hinge. 2. Install the cover. 3. Follow the procedure in after working inside your computer.
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. Remove the WLAN card from the system board. 4. Remove the plastic bracket from the top of the antenna connector.
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.
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. Replace PCIe bracket into its slot on the chassis. 6. Route the antenna cables along the rubber guides on the system board and replace the single (M2x3.5) screw securing the WLAN module to the system board. Next steps 1. Close the psu hinge. 2.
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. b. c. d. System board power connector cable SD card cable Type-C cable IO USB cable 3. Remove the single (#6-32x1/4) screw that secures the IO panel to the chassis. 4. Lift the IO panel to release the tabs on the IO panel from the slots on the chassis. 5.
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. Route the cables through the routing channel and connect the following cables to their respective connectors on the system board: a. b. c. d. IO USB cable Type-C cable SD card cable System board power connector cable Next steps 1. 2. 3. 4. 5. 44 Install the optical drive.
Power button module Removing the power button module Prerequisites 1. 2. 3. 4. 5. Follow the procedure in before working inside your computer. Remove the cover. Open the psu hinge. Remove the bezel. Remove the IO panel. About this task The following images indicate the location of the power button module and provides a visual representation of the removal procedure. Steps 1. Disconnect the power button module cable from the connector on the system board. 2.
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. Connect the power button module cable to the connector on the system board. Next steps 1. 2. 3. 4. 5. Install the IO panel. Install the bezel. Close the psu hinge. Install the cover.
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.
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. Close the psu hinge. 2. Install the cover. 3. Follow the procedure in after working inside your computer. Intrusion switch Removing the intrusion switch Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the psu hinge.
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.
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. Close the psu hinge. 2. Install the cover. 3. Follow the procedure in after working inside your computer. Solid state drive Removing the solid state drive Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the cover.
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.
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. 2. 3. 4. Install the graphics card. Close the psu hinge. Install the cover. Follow the procedure in after working inside your computer. Coin cell battery Removing the coin cell battery Prerequisites 1.
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. About this task The following image indicate the location of the coin cell battery and provides a visual representation of the installation procedure.
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. Close the psu hinge. 2. Install the cover. 3. Follow the procedure in after working inside your computer. Power supply unit Removing the power supply unit Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the cover. Open the PSU hinge.
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. 3. Remove the four #6-32x1/4 screws that secure the power-supply unit to the chassis and lift the PSU off the chassis.
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. 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. Next steps 1. 2. 3. 4. 56 Open the PSU hinge.
Front fan Removing the front fan Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the psu 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. Unthread the hard drive cables from the routing guides on the front fan. 2. Disconnect the fan cable from the system board. 3. Press the notch to release the fan from the chassis. 4.
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. Align the notches in the fan with the hooks on the chassis and replace the fan into its slot in the chassis. 2. Firmly press the fan so it is locked in its position. 3. Connect the fan cable to the system board.
Top fan Removing the top fan Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the cover. 3. Open the psu 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. Disconnect the fan cable from the system board: 2. Remove the single screw (#6-32) that secure the fan bracket to the chassis.
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. Steps 1. Align the holes in the fan case with the rubber guides on the fan bracket. 2.
Next steps 1. Close the psu 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. Open the psu hinge. About this task The following images indicate the location of the heatsink assembly and provides a visual representation of the removal procedure. Figure 4.
Disassembly and reassembly Figure 5.
Steps 1. Disconnect the heatsink fan cable from the connector on the system board. 2. 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.
Figure 7. Heatsink assembly - 125 W CPU Steps 1. Replace the heatsink assembly on the top of processor preassembled with thermal gel. 2. 64 NOTE: Tighten the screws in a sequential order (1,2,3,4) as mentioned on the system board.
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. Next steps 1. Close the psu hinge. 2. Install the cover. 3. Follow the procedure in after working inside your computer. Voltage regulator heat sink Removing the voltage regulator heat sink Prerequisites 1. 2. 3. 4. 5. 6.
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.
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.
Next steps 1. 2. 3. 4. 5. 6. Install the heat sink assembly. Install the solid state drive. Install the graphics card. Close the psu hinge. Install the cover. Follow the procedure in after working inside your computer. Processor Removing the processor Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the cover. Open the psu hinge. Remove the heat sink assembly.
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. About this task The following images indicate the location of the processor and provides a visual representation of the installation procedure. Steps 1.
2. Close the psu hinge. 3. Install the cover. 4. Follow the procedure in after working inside your computer. System board Removing the system board Prerequisites 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Follow the procedure in before working inside your computer. Remove the cover. Open the psu hinge. Remove the memory module. Remove the graphics card. Remove the solid state drive. Remove the WLAN module and SMA antenna. Remove the heat sink assembly. Remove the Voltage regulator heat sink. Remove the processor.
Disassembly and reassembly 71
Steps 1. Disconnect and remove the following cables from the system board: a. b. c. d. e. f. g. h. i. j. k. l. System fan cable Intrusion cable I/O panel cable CPU power cable System board power connector cable SD card cable Type-C cable I/O USB cable Primary hard drive SATA cable ODD SATA cable Speaker cable I/O audio cable 2. Remove the eight screws (#6-32) that secure the system board to the chassis. 3. Slide the system board out of the chassis.
Disassembly and reassembly 73
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. b. c. d. e. f. g. h. i. j. k. l.
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. Memory module connector 6. Top-fan connector 7. Intrusion switch connector 8. Power button module connector: PWR SW 9. ATX PSU power connector : ATX SYS 10. SD Card reader connector 11. Front panel USB Type-C connector 12. Front panel USB Type-A connector 13. SATA 3.
28. M.
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. Start the RTC reset with the system powered off and connected to AC power. Press and hold the power button for thirty (30) seconds. The system RTC Reset occurs after you release the power button.
Table 5.
Table 6. Diagnostic error messages (continued) Error messages Description THE FILE BEING COPIED IS TOO LARGE FOR THE DESTINATION DRIVE The file that you are trying to copy is too large to fit on the disk, or the disk is full. Try copying the file to a different disk or use a larger capacity disk. A FILENAME CANNOT CONTAIN ANY OF THE FOLLOWING CHARACTERS: \ / : * ? " < > | - Do not use these characters in filenames. GATE A20 FAILURE A memory module may be loose.
Table 6. Diagnostic error messages (continued) Error messages Description LICENSED CONTENT IS NOT ACCESSIBLE IN MEDIADIRECT Dell MediaDirect cannot verify the Digital Rights Management (DRM) restrictions on the file, so the file cannot be played. MEMORY ADDRESS LINE FAILURE AT ADDRESS, READ VALUE EXPECTING VALUE A memory module may be faulty or improperly seated. Reinstall the memory module or, if necessary, replace it.
Table 6. Diagnostic error messages (continued) Error messages Description TIME-OF-DAY NOT SET-PLEASE RUN THE SYSTEM SETUP PROGRAM The time or date stored in the system setup program does not match the system clock. Correct the settings for the Date and Time options. TIMER CHIP COUNTER 2 FAILED A chip on the system board may be malfunctioning. Run the System Set tests in Dell Diagnostics.
Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows operating system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating system. It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state.
6 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 Contact Support In Windows search, type Contact Support, and press Enter. Online help for operating system ● Windows: https://www.dell.com/support/windows ● Linux: https://www.dell.
Contacting Dell Dell provides several online and telephone-based support and service options. If you do not have an active Internet connection, you can find contact information about your purchase invoice, packing slip, bill, or 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. Go to https://www.dell.com/support/. 2.
A 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. 2. Remove the Cover on page 21. 3. Open the PSU hinge on page 23. 4. To remove the optional IO card: a. Disconnect the IO card cable from the connector on the system board [1]. b.
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. Close the PSU hinge on page 23. 5. Install the Cover on page 21.
B 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. Insert the tab on the security-lock metal bracket into the slot on the rear side of the system [1] and rotate to align the holes on the metal bracket with screw holders on the chassis [2] 2.
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].
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. Align the plastic hooks of the cable cover to the slots on the system .
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. To remove the cable cover: a. Slide the latch away from the chassis to unlock the cable cover [1]. b. Lift the cable cover away from the system chassis [2].
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
C 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 1. Align the plastic tabs of the dust filter to the slots on the system chassis and gently press to ensure that the dust filter fits firmly onto the system. 2.
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. NOTE: Alerts are generated only during a system reboot and not during normal OS operation. Next steps To clean the dust filter, brush or gently vacuum and then wipe down the external surfaces with a moist cloth.
D 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.
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].
Figure 14.
Figure 15. Rear rubber feet installation 2. Follow the procedure in After Working Inside Your Computer.
