Dell Precision 3640 Tower Service Manuale del proprietario

Tipo
Manuale del proprietario
Precision 3640 Tower
Service Manual
0.0.0.0
Regulatory Model: D24M
Regulatory Type: D24M004
May 2020
Rev. A00
Questo manuale d’istruzione è fornito da trovaprezzi.it. Scopri tutte le offerte per Dell Precision 3640
CMG15 o cerca il tuo prodotto tra le migliori offerte di PC Desktop e Workstation
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 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.
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.............................................................................................................................. 8
After working inside your computer.............................................................................................................................. 9
2 Technology and components........................................................................................................10
DDR4......................................................................................................................................................................................10
Intel Rapid Storage Technology (Intel RST)......................................................................................................................11
Advantages of DisplayPort over USB Type-C..................................................................................................................13
HDMI 2.0............................................................................................................................................................................... 13
3 Major components of your system................................................................................................15
4 Disassembly and reassembly........................................................................................................ 16
Recommended tools............................................................................................................................................................ 16
Screw list...............................................................................................................................................................................16
Chassis rubber feet..............................................................................................................................................................16
Removing the chassis rubber feet............................................................................................................................... 16
Installing the chassis rubber feet..................................................................................................................................18
Cover.....................................................................................................................................................................................20
Removing the cover......................................................................................................................................................20
Installing the cover......................................................................................................................................................... 21
SD card—optional...............................................................................................................................................................22
Removing the SD card .................................................................................................................................................22
Installing the SD card.................................................................................................................................................... 23
Bezel......................................................................................................................................................................................24
Removing the front bezel............................................................................................................................................. 24
Installing the front bezel............................................................................................................................................... 25
Hard drive.............................................................................................................................................................................25
Removing the 3.5-inch hard drive ..............................................................................................................................25
Installing the 3.5-inch hard drive ................................................................................................................................ 26
Removing the 2.5-inch hard drive .............................................................................................................................. 27
Installing the 2.5-inch hard drive ................................................................................................................................ 29
PSU hinge..............................................................................................................................................................................31
Opening the PSU hinge................................................................................................................................................. 31
Closing the PSU hinge.................................................................................................................................................. 32
Graphics card....................................................................................................................................................................... 33
Removing the graphics card........................................................................................................................................ 33
Installing the graphics card...........................................................................................................................................35
Memory module...................................................................................................................................................................38
Contents
Contents 3
Removing the memory module.................................................................................................................................... 38
Installing the memory module...................................................................................................................................... 38
Speaker.................................................................................................................................................................................39
Removing speaker......................................................................................................................................................... 39
Installing the speaker.....................................................................................................................................................39
Coin cell battery...................................................................................................................................................................40
Removing the coin cell battery.................................................................................................................................... 40
Installing the coin cell battery....................................................................................................................................... 41
Power supply unit................................................................................................................................................................ 42
Removing the power supply unit................................................................................................................................. 42
Installing the power supply unit ...................................................................................................................................44
Optical drive......................................................................................................................................................................... 46
Removing the optical drive...........................................................................................................................................46
Installing the optical drive............................................................................................................................................. 48
WLAN module and SMA antenna......................................................................................................................................49
Removing WLAN module and SMA antenna............................................................................................................. 49
Installing WLAN module and SMA antenna................................................................................................................ 51
IO panel.................................................................................................................................................................................52
Removing the IO panel..................................................................................................................................................52
Installing the IO panel.................................................................................................................................................... 57
Solid state drive................................................................................................................................................................... 62
Removing the PCIe SSD card...................................................................................................................................... 62
Installing the PCIe SSD card........................................................................................................................................ 63
Power button module......................................................................................................................................................... 65
Removing power button module................................................................................................................................. 65
Installing power button module....................................................................................................................................66
Heatsink assembly...............................................................................................................................................................68
Removing heatsink assembly - 65 W or 80 W CPU................................................................................................. 68
Removing blower and heat sink assembly — 125 W CPU.......................................................................................69
Installing heatsink assembly - 65 W or 80 W CPU.....................................................................................................71
Installing blower and heat sink assembly — 125 W CPU..........................................................................................72
VR heat sink......................................................................................................................................................................... 74
Removing VR heatsink.................................................................................................................................................. 74
Installing VR heatsink.................................................................................................................................................... 75
Front fan............................................................................................................................................................................... 77
Removing front fan........................................................................................................................................................77
Installing front fan..........................................................................................................................................................79
System fan............................................................................................................................................................................ 81
Removing system fan.................................................................................................................................................... 81
Installing system fan...................................................................................................................................................... 82
Optional IO card...................................................................................................................................................................84
Removing optional IO card........................................................................................................................................... 84
Installing the optional IO card ......................................................................................................................................84
Processor..............................................................................................................................................................................86
Removing the processor...............................................................................................................................................86
Installing the processor................................................................................................................................................. 86
Intrusion switch....................................................................................................................................................................87
Removing intrusion switch............................................................................................................................................87
Installing intrusion switch..............................................................................................................................................88
System board.......................................................................................................................................................................89
4
Contents
Removing the system board........................................................................................................................................ 89
Installing the system board........................................................................................................................................... 91
System board layout..................................................................................................................................................... 95
5 Troubleshooting......................................................................................................................... 97
Real-Time Clock (RTC Reset)........................................................................................................................................... 97
System diagnostic lights..................................................................................................................................................... 97
Diagnostic error messages................................................................................................................................................. 98
System error messages..................................................................................................................................................... 101
Recovering the operating system.....................................................................................................................................101
Flashing BIOS (USB key).................................................................................................................................................. 102
Flashing the BIOS...............................................................................................................................................................102
WiFi power cycle................................................................................................................................................................102
6 Getting help and contacting Dell................................................................................................ 103
A Cable cover ............................................................................................................................. 105
B Dust filter .................................................................................................................................111
Contents
5
Working on your computer
Safety instructions
Prerequisites
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 the following conditions exist:
You have read the safety information that shipped with your computer.
A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
About this task
NOTE: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the
computer, replace all covers, panels, and screws before connecting to the power source.
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
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and
simple repairs as authorized in your product documentation, or as directed by the online or telephone service and
support team. 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.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching
an unpainted metal surface at the same time as touching a connector on the back of the computer.
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by
its edges or by its metal mounting bracket. Hold a component such as 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 connect a cable, ensure that both connectors are correctly oriented and aligned.
NOTE: The color of your computer and certain components may appear differently than shown in this document.
Before working inside your computer
About this task
To avoid damaging your computer, perform the following steps before you begin working inside the computer.
Steps
1. Ensure that you follow the Safety instructions.
2. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.
3. Turn off your computer.
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.
1
6 Working on your computer
6. Press and hold the power button while the computer is unplugged to ground the system board.
NOTE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching
an unpainted metal surface at the same time as touching a connector on the back of the computer.
Safety precautions
The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
Observe the following safety precautions before you perform any installation or break/fix procedures involving disassembly or reassembly:
Turn off the system and all attached peripherals.
Disconnect the system and all attached peripherals from AC power.
Disconnect all network cables, telephone, and telecommunications lines from the system.
Use an ESD field service kit when working inside any to avoid electrostatic discharge (ESD) damage.
After removing any system component, carefully place the removed component on an anti-static mat.
Wear shoes with non-conductive rubber soles to reduce the chance of getting electrocuted.
Standby power
Dell products with standby power must be unplugged before you open the case. Systems that incorporate standby power are essentially
powered while turned off. The internal power enables the system to be remotely turned on (wake on LAN) and suspended into a sleep
mode and has other advanced power management features.
Unplugging, pressing and holding the power button for 15 seconds should discharge residual power in the system board.
Bonding
Bonding is a method for connecting two or more grounding conductors to the same electrical potential. This is done through the use of a
field service electrostatic discharge (ESD) kit. When connecting a bonding wire, ensure that it is connected to bare metal and never to a
painted or non-metal surface. The wrist strap should be secure and in full contact with your skin, and ensure that you remove all jewelry
such as watches, bracelets, or rings prior to bonding yourself and the equipment.
Electrostatic discharge—ESD protection
ESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards, processors,
memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such as intermittent
problems or a shortened product life span. As the industry pushes for lower power requirements and increased density, 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.
Two recognized types of ESD damage are catastrophic and intermittent failures.
Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate
and complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock and
immediately generates a "No POST/No Video" symptom with a beep code emitted for missing or nonfunctional memory.
Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failures
means that most of the time when damage occurs, it is not immediately recognizable. The DIMM receives a static shock, but the
tracing is merely weakened and does not immediately produce outward symptoms related to the damage. The weakened trace may
take weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, etc.
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.
Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads.
When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static packing
material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you discharge static
electricity from your body.
Before transporting a static-sensitive component, place it in an anti-static container or packaging.
Working on your computer
7
ESD field service kit
The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components: anti-
static mat, wrist strap, and bonding wire.
Components of an ESD field service kit
The components of an ESD field service kit are:
Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures. When using an anti-
static mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to any bare metal on the system
being worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly on the mat. ESD-
sensitive items are safe in your hand, on the ESD mat, in the system, or inside a bag.
Wrist Strap and Bonding Wire – The wrist strap and bonding wire can be either directly connected between your wrist and bare
metal on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that is temporarily
placed on the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD mat, and the hardware is
known as bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never use wireless wrist straps. Always be
aware that the internal wires of a wrist strap are prone to damage from normal wear and tear, and must be checked regularly with a
wrist strap tester in order to avoid accidental ESD hardware damage. It is recommended to test the wrist strap and bonding wire at
least once per week.
ESD Wrist Strap Tester – The wires inside of an ESD strap are prone to damage over time. When using an unmonitored kit, it is a
best practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A wrist strap tester is the
best method for doing this test. If you do not have your own wrist strap tester, check with your regional office to find out if they have
one. To perform the test, plug the wrist-strap's bonding-wire into the tester while it is strapped to your wrist and push the button to
test. A green LED is lit if the test is successful; a red LED is lit and an alarm sounds if the test fails.
Insulator Elements – It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts that are
insulators and often highly charged.
Working Environment – Before deploying the ESD Field Service kit, assess the situation at the customer location. For example,
deploying the kit for a server environment is different than for a desktop or portable environment. Servers are typically installed in a
rack within a data center; desktops or portables are typically placed on office desks or cubicles. Always look for a large open flat work
area that is free of clutter and large enough to deploy the ESD kit with additional space to accommodate the type of system that is
being repaired. The workspace should also be free of insulators that can cause an ESD event. On the work area, insulators such as
Styrofoam and other plastics should always be moved at least 12 inches or 30 centimeters away from sensitive parts before physically
handling any hardware components
ESD Packaging – All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded bags are
preferred. However, you should always return the damaged part using the same ESD bag and packaging that the new part arrived in.
The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the original box that the
new part arrived in. ESD-sensitive devices should be removed from packaging only at an ESD-protected work surface, and parts
should never be placed on top of the ESD bag because only the inside of the bag is shielded. Always place parts in your hand, on the
ESD mat, in the system, or inside an anti-static bag.
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.
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.
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. Always obtain additional resources or use a mechanical lifting device.
1. Get a firm balanced footing. Keep your feet apart for a stable base, and point your toes out.
2. Tighten stomach muscles. Abdominal muscles support your spine when you lift, offsetting the force of the load.
3. Lift with your legs, not your back.
8
Working on your computer
4. Keep the load close. The closer it is to your spine, the less force it exerts on your back.
5. Keep your back upright, whether lifting or setting down the load. Do not add the weight of your body to the load. Avoid twisting your
body and back.
6. Follow the same techniques in reverse to set the load down.
After working inside your computer
About this task
After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on your
computer.
Steps
1. Connect any telephone or network cables to your computer.
CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the
computer.
2. Connect your computer and all attached devices to their electrical outlets.
3. Turn on your computer.
4. If required, verify that the computer works correctly by running the diagnostic tool.
Working on your computer 9
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.
DDR4 needs 20 percent less or just 1.2 volts, compared to DDR3 which requires 1.5 volts of electrical power to operate. DDR4 also
supports a new, deep power-down mode that allows the host device to go into standby without needing to refresh its memory. Deep
power-down mode is expected to reduce standby power consumption by 40 to 50 percent.
DDR4 Details
There are subtle differences between DDR3 and DDR4 memory modules, as listed below.
Key notch difference
The key notch on a DDR4 module is in a different location from the key notch on a DDR3 module. Both notches are on the insertion edge
but the notch location on the DDR4 is slightly different, to prevent the module from being installed into an incompatible board or platform.
Figure 1. Notch difference
Increased thickness
DDR4 modules are slightly thicker than DDR3, to accommodate more signal layers.
Figure 2. Thickness difference
Curved edge
DDR4 modules feature a curved edge to help with insertion and alleviate stress on the PCB during memory installation.
2
10 Technology and components
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.
Intel Rapid Storage Technology (Intel RST)
The following article provides an overview of the Intel Rapid Storage Technology application and its features:
Overview
Intel Rapid Storage Technology (IRST) is a hardware, firmware and, software-based RAID solution. IRST was previously known as 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.
IRST encapsulates newer level of protection with better performance, and low power consumption. IRST user interface simplifies creation
and management of storage assets.
The fault tolerance is averted using one of the following RAID levels:
1. RAID 0 (Striping):
Multiple storage devices are combined to what appears to be a single virtual drive. Data is arranged as blocks that are spread across
multiple storage devices using process called striping. RAID 0 uses Read/ Write capabilities of two or more storage devices in parallel,
enhancing performance. There is no redundancy, hence if any of the storage devices fails, the RAID has to be re-created.
2. RAID 1 (Mirroring):
Two storage devices are mirrored or duplicated to achieve redundancy and hence enhance reliability in an event of single drive failure.
The performance is that of a single drive.
Technology and components
11
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. The Volume Write-Back allows writes to be buffered, and
Coalescer allows multiple write requests to be combined to reduce the overhead on parity calculation.
4. RAID 10 (Striping and Mirroring)):
RAID 10 is created, mirroring (RAID 1) the stripped (RAID 0) array. This RAID level uses four or more storage devices. It has great
reliability like a RAID 1 and performance like a RAID 0.
RAID-ready
A RAID-Ready configuration allows migration from one non-RAID SATA drive to a SATA RAID configuration.
NOTE: A reinstall of the operating system is not required for the migration.
A RAID-Ready system must meet the following requirements:
Supported Intel Chipsets
One Serial ATA (SATA) hard drive
RAID controller enabled in the system setup
BIOS that includes the IRST option ROM
IRST software
Hard drive partition with at least 5 MB of free space
12
Technology and components
Features of RAID-enabled systems:
Intel Rapid Recover Technology - This technology provides full data redundancy by copying data from a designated source drive
(master 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. Data is distributed across two or more disks to provide data redundancy or to enhance data storage performance.
Intel Matrix RAID Technology - This technology allows two independent RAID volumes to be created on a single array. The first
volume occupies part of the array, leaving space for the second volume. The array may consist of two to six SATA disks depending on
the volume types.
Native command queuing - A feature that allows SATA disks to accept more than one command at a time. With multiple disks that
support NCQ, storage performance is increased on random workloads by allowing the disk to internally optimize the order of
commands.
Disk capacity greater than 2 TB (Option ROM support) - This feature supports hard disks and solid-state drives with a capacity
greater than 2 TB that are reported as pass-through devices (available) or used in a RAID configuration. Besides booting from a
system disk greater than 2 TB is allowed, if the version of the option ROM in your system supports this feature.
Password-protected disks - This feature provides high-level security and protection for the data on your disks with a password,
denying access from any unauthorized user.
Advantages of DisplayPort over USB Type-C
Full DisplayPort audio/video (A/V) performance (up to 4K at 60Hz)
Reversible plug orientation and cable direction
Backwards compatibility to VGA, DVI with adaptors
SuperSpeed USB (USB 3.1) data
Supports HDMI 2.0a and is backwards compatible with previous versions
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. HDMI provides an
interface between any compatible digital audio/video source, such as a DVD player, or A/V receiver and a compatible digital audio and/or
video monitor, such as a digital TV (DTV). The intended applications for HDMI TVs, and DVD 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
Audio Return Channel - Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio
system, eliminating the need for a separate audio cable
3D - Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications
Content Type - Real-time signaling of content types between display and source devices, enabling a TV to optimize picture settings
based on content type
Additional Color Spaces - Adds support for additional color models used in digital photography and computer graphics
4K Support - Enables video resolutions far beyond 1080p, supporting next-generation displays that will rival the Digital Cinema
systems used in many commercial movie theaters
HDMI Micro Connector - A new, smaller connector for phones and other portable devices, supporting video resolutions up to 1080p
Automotive Connection System - New cables and connectors for automotive video systems, designed to meet the unique
demands of the motoring environment while delivering true HD quality
Advantages of HDMI
Quality HDMI transfers uncompressed digital audio and video for the highest, crispest image quality.
Low -cost HDMI provides the quality and functionality of a digital interface while also supporting uncompressed video formats in a
simple, cost-effective manner
Audio HDMI supports multiple audio formats from standard stereo to multichannel surround sound
Technology and components
13
HDMI combines video and multichannel audio into a single cable, eliminating the cost, complexity, and confusion of multiple cables
currently used in A/V systems
HDMI supports communication between the video source (such as a DVD player) and the DTV, enabling new functionality
14 Technology and components
Major components of your system
1. Cover
2. System fan
3. IO panel
4. Power button module
5. Optical drive
6. Hard drive
7. Bezel
8. Hard drive
9. Chasis
10. Power supply unit
11. System board
12. Front fan
13. Processor
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.
3
Major components of your system 15
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 1. Screw list
Component
#6-32x1/4'' M2x2.5 M3X3 M2X3.5
Power supply bracket 2
Power supply unit 4
Heat sink blower (95 W heat sink solution) 3
System-fan bracket 1
System board 8
IO panel 1
Security-lock metal bracket 2
Solid-state drive (SSD) card 1
Optical drive bracket 1
Optional IO card 2
WLAN card and SMA antenna module 1
Chassis rubber feet
Removing the chassis rubber feet
Steps
1. Follow the procedure in Before Working Inside Your Computer.
4
16 Disassembly and reassembly
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 4. Front rubber feet removal
Disassembly and reassembly
17
Figure 5. 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].
18
Disassembly and reassembly
Figure 6. Front rubber feet installation
Disassembly and reassembly
19
Figure 7. Rear rubber feet installation
2. Follow the procedure in After Working Inside Your Computer.
Cover
Removing the cover
Steps
1. Follow the procedure in Before Working Inside Your Computer.
2. Pull the release latch to release the cover [1].
NOTE: Release latch may have been secured with a security screw. Remove the security screw to release the cover.
20 Disassembly and reassembly
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16
  • Page 17 17
  • Page 18 18
  • Page 19 19
  • Page 20 20
  • Page 21 21
  • Page 22 22
  • Page 23 23
  • Page 24 24
  • Page 25 25
  • Page 26 26
  • Page 27 27
  • Page 28 28
  • Page 29 29
  • Page 30 30
  • Page 31 31
  • Page 32 32
  • Page 33 33
  • Page 34 34
  • Page 35 35
  • Page 36 36
  • Page 37 37
  • Page 38 38
  • Page 39 39
  • Page 40 40
  • Page 41 41
  • Page 42 42
  • Page 43 43
  • Page 44 44
  • Page 45 45
  • Page 46 46
  • Page 47 47
  • Page 48 48
  • Page 49 49
  • Page 50 50
  • Page 51 51
  • Page 52 52
  • Page 53 53
  • Page 54 54
  • Page 55 55
  • Page 56 56
  • Page 57 57
  • Page 58 58
  • Page 59 59
  • Page 60 60
  • Page 61 61
  • Page 62 62
  • Page 63 63
  • Page 64 64
  • Page 65 65
  • Page 66 66
  • Page 67 67
  • Page 68 68
  • Page 69 69
  • Page 70 70
  • Page 71 71
  • Page 72 72
  • Page 73 73
  • Page 74 74
  • Page 75 75
  • Page 76 76
  • Page 77 77
  • Page 78 78
  • Page 79 79
  • Page 80 80
  • Page 81 81
  • Page 82 82
  • Page 83 83
  • Page 84 84
  • Page 85 85
  • Page 86 86
  • Page 87 87
  • Page 88 88
  • Page 89 89
  • Page 90 90
  • Page 91 91
  • Page 92 92
  • Page 93 93
  • Page 94 94
  • Page 95 95
  • Page 96 96
  • Page 97 97
  • Page 98 98
  • Page 99 99
  • Page 100 100
  • Page 101 101
  • Page 102 102
  • Page 103 103
  • Page 104 104
  • Page 105 105
  • Page 106 106
  • Page 107 107
  • Page 108 108
  • Page 109 109
  • Page 110 110
  • Page 111 111
  • Page 112 112

Dell Precision 3640 Tower Service Manuale del proprietario

Tipo
Manuale del proprietario