Precision 5540 Service Manual Regulatory Model: P56F Regulatory Type: P56F005 Jun 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. © 2019 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........................................................................................... 5 Safety instructions.............................................................................................................................................................. 5 Before working inside your computer....................................................................................................................... 6 Safety precautions...................
Palm rest........................................................................................................................................................................47 Chapter 5: Troubleshooting......................................................................................................... 51 Enhanced Pre-Boot System Assessment — ePSA diagnostics............................................................................. 51 Running the ePSA Diagnostics..................................
1 Working on your computer Topics: • Safety instructions 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.
Before working inside your computer Steps 1. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched. 2. Turn off your computer. 3. If the computer is connected to a docking device (docked), undock it. 4. Disconnect all network cables from the computer (if available). CAUTION: If your computer has an RJ45 port, disconnect the network cable by first unplugging the cable from your computer. 5.
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.
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.
2 Technology and components This chapter details the technology and components available in the system. Topics: • • • • • • • • • • • Power supply specifications Power adapter Video specifications Audio specifications Memory Display specifications Keyboard specifications Battery Storage specifications USB Type-C USB features Power supply specifications Table 1. Power supply Features Specification Input Voltage 100 – 240 VAC Input frequency 50 – 60 Hz Type 130 W AC Adapter Power adapter Table 2.
Table 2. Power adapter specifications (continued) Features Specification Temperature range (Non-Operating) 40° to 70° C (-40° to 158° F) Video specifications Table 3. Video Controller Type CPU Dependency Graphics memory type Capacity External display support Integrated Intel UHD 630 GFX Intel HD GFX Integrated Shared system memory HDMI 2.0 Nvidia Quadro T1000 w/4GB GDDR5 Discrete Intel Xeon E-2276M GDDR5 4 GB HDMI 2.
Display specifications Table 6. Display specifications Features Specification Type ● UltraSharp FHD IGZO4, 1920x1080, AG, NT, W/Prem Panel Guar, 100% sRGB color gamut, Titan Gray. UltraSharp FHD IGZO4, 1920x1080, AG, NT, w/Prem Panel Guar, 100% sRGB color gamut, Platinum Silver. 15.6" Ultrasharp UHD IGZO4, 3840x2160, Touch, w/Prem Panel Guar, 100% Adobe color gamut, Titan Gray. 15.6" Ultrasharp UHD IGZO4, 3840x2160, Touch, w/Prem Panel Guar, 100% Adobe color gamut, Platinum Silver. 15.
Table 6. Display specifications (continued) Features Specification Pixel pitch ● FHD - 0.18 mm ● UHD - 0.09 mm Power consumption (max) ● ● ● ● 4.22 W (FHD 100% sRGB color gamut ) 9.23 W (UHD Adobe 100% color gamut) 4.3 W (OLED UHD 100% color gamut, Titan Gray) 14.8 (OLED UHD 100% color gamut, Platinum Silver) Keyboard specifications Table 7. Keyboard specifications Features Specification Number of keys ● 80 (U.S. and Canada) ● 81 (Europe) ● 84 (Japan) Size Full sized ● X= 19.
Table 8. Battery specifications (continued) Features Specifications Life span 300 discharge/recharge cycles Charging time when the computer is off (approximate) 4 hours Operating time Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions Temperature range: Operating 0°C to 35°C (32°F to 95°F) Temperature range: Storage -40°C to 65°C (-40°F to 149°F) Coin-cell battery ML1220 Storage specifications NOTE: The 2.
Alternate Mode USB Type-C is a new connector standard that's very small. It's about a third the size of an old USB Type-A plug. This is a single connector standard that every device should be able to use. USB Type-C ports can support a variety of different protocols using “alternate modes,” which allows you to have adapters that can output HDMI, VGA, DisplayPort, or other types of connections from that single USB port USB Power Delivery The USB PD specification is also closely intertwined with USB Type-C.
The topics below cover some of the most commonly asked questions regarding USB 3.0/USB 3.1 Gen 1. Speed Currently, there are 3 speed modes defined by the latest USB 3.0/USB 3.1 Gen 1 specification. They are Super-Speed, Hi-Speed and Full-Speed. The new SuperSpeed mode has a transfer rate of 4.8Gbps. While the specification retains Hi-Speed, and Full-Speed USB mode, commonly known as USB 2.0 and 1.
● ● ● ● Optical Media Drives Multimedia Devices Networking USB 3.0/USB 3.1 Gen 1 Adapter Cards & Hubs Compatibility The good news is that USB 3.0/USB 3.1 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0. First of all, while USB 3.0/USB 3.1 Gen 1 specifies new physical connections and thus new cables to take advantage of the higher speed capability of the new protocol, the connector itself remains the same rectangular shape with the four USB 2.
3 Major components of your system 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.
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 Topics: • Disassembly and reassembly Disassembly and reassembly Base cover Installing the Base Cover Steps 1. Place the base cover on the computer and snap it in place. 2. Tighten the M2x3 T5 (10), M2x8 (2) screws to secure the base cover to the computer. NOTE: Ensure you use a Torx #5 screwdriver for the base screws and a Philips screwdriver for the two M2x8 system badge screws. 3. Turn the system badge flap over and snap it in place. 4.
4. Pry the edges of the base cover and lift it to remove it from the computer. Battery Lithium-ion battery precautions CAUTION: ● Exercise caution when handling Lithium-ion batteries. ● Discharge the battery as much as possible before removing it from the system. This can be done by disconnecting the AC adapter from the system to allow the battery to drain. ● Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell. ● Always purchase genuine batteries from www.dell.com or authorized Dell partners and resellers. Removing the Battery About this task NOTE: Discharge the battery as much as possible before removing from the system.
Installing the Battery Steps 1. Place and align the battery in the battery bay. 2. Tighten the M2x4 (7) screws that secure the battery to the computer. 3. Connect the battery cable to the system board. 4. Install the base cover. 5. Follow the procedures in After Working Inside Your Computer. PCIe Solid State Drive (SSD) Removing M.2 Solid State Drive -SSD Steps 1. Follow the procedures in Before Working Inside Your Computer 2. Remove the: a. base cover b. battery 3.
Installing M.2 Solid State Drive -SSD Steps 1. Adhere the thermal pad to the M.2 solid-state drive. NOTE: The thermal pad is applicable only for a PCIe SSD card. 2. Slide the M.2 solid-state drive at an angle into the solid-state drive slot. 3. Press the other end of the solid-state drive down and replace the M2x3 (1) screw that secures the solid-state drive to the system board. 4. Install the: a. battery b. base cover 5. Follow the procedures in After Working Inside Your Computer. Hard drive Removing 2.
4. Perform the following steps to remove the hard-drive: a. Disconnect the hard-drive cable from the system board [1]. b. Lift the hard drive off the palm rest assembly [2]. 5. Disconnect the hard drive interposer from the hard drive assembly and then remove the hard drive covers away from the hard drive [1,2].
Installing the Hard Drive -optional Steps 1. Replace the hard-drive covers on the hard drive. 2. Connect the hard-drive interposer to the hard-drive assembly. 3. Place the hard-drive assembly on the palm-rest assembly. 4. Connect the hard-drive cable to the system board. 5. Align the screw holes on the hard-drive cage with the screw holes on the hard-drive assembly. 6. Replace the M2x4 (4) screws that secure the hard-drive cage to the palm-rest assembly. 7. Install the: a. battery b. base cover 8.
Installing the Speakers Steps 1. Using the alignment posts, place the speakers on the palm-rest assembly. 2. Replace the M2x2 (4) screws that secure the speakers to the palm-rest assembly. 3. Route the speaker cables through the routing guides on the palm-rest assembly. 4. Connect the speaker cable to the system board. 5. Install the: a. battery b. base cover 6. Follow the procedures in After Working Inside Your Computer. WLAN card Removing the WLAN Card Steps 1.
Installing the WLAN Card Steps 1. Align the notch on the WLAN card with the tab on the WLAN-card connector on the system board. 2. Align the bracket which secures the WLAN card to the palmrest assembly. 3. Connect the antenna cables to the WLAN card. CAUTION: To avoid damage to the WLAN card, do not place any cables under it. NOTE: The color of the antenna cables is visible near the tip of the cables. The antenna-cable color scheme for the WLAN card supported by your computer is as follows: Table 11.
Memory modules Removing the Memory Modules Steps 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove the: a. base cover b. battery 3. Pry the securing clips away from the memory module until it pops-up [1]. Then, remove the memory module from its connector on the system board [2]. Installing the Memory Modules Steps 1. Insert the memory module into the memory socket. 2. Press the memory module down until it clicks into place.
b. battery 3. Perform the following steps to remove the left video-card fan: a. b. c. d. Release the Mylar tape that secures the cable to the system board [1]. Disconnect the fan cable from the system board [2] Remove the M2x4 (2) screws that secure the fan to the system board [3]. Lift the fan away from the computer [4] 4. Perform the following steps to remove the right system fan: a. Remove the M2x4 (2) screws and lift the metal bracket that holds the left video-card fan to the system board [1]. b.
c. d. e. f. g. 30 Disconnect the display cable from the system board [1]. Un-route the display cable from the restraints [2] Disconnect the system fan cable from the system board [3]. Remove the M2x4 (2) screws that secure the system fan to the system board [4]. Lift the fan away from the laptop [5].
Installing the Fans Steps 1. Perform the following steps to install the system fan: a. b. c. d. e. f. g. h. i. j. k. Align the screw holes on the left fan with the screw holes on the palm-rest assembly. Connect the left fan cable to the system board. Route the display cable through the routing guides on the left fan. Replace the M2x4 (2) screws that secure the left fan to the system board. Align the right fan to the system board. Route the touch-screen cable through the routing guides on the right fan.
2. Remove the: CAUTION: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch. NOTE: The Heatsink removal screw may vary depending upon the type of Heatsink installed. a. base cover b. battery 3. Remove the M2x3 (5) screws that secure the heatsink to the system board. NOTE: Ensure to remove the screws in the order (1,2,3,4,5). See the printed image number order on the top of heatsink. 4. Lift the heatsink away from the system board [2].
Power connector port Removing the DC-in Connector Steps 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove the: a. base cover b. battery 3. Perform the following steps to remove the I/O board: a. Disconnect the DC-in cable from the connector to the system board [1]. b. Remove the M2x3 screw that secures the DC-in connector to the computer [2]. c. Lift the DC-in connector from the computer [3]. Installing the DC-in Adapter Port Steps 1.
2. Remove the: a. b. c. d. e. f. g. h. i. base cover battery fans heatsink assembly WLAN hard drive (optional) keyboard SSD memory modules NOTE: Your computer’s Service Tag is located under the system badge flap. You must enter the Service Tag in the BIOS after you replace the system board. NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can re-connect them correctly after you replace the system board. 3. To remove the system board: a. b. c. d.
b. Lift the system board from the computer [2]. Installing the System Board Steps 1. Hold the system board at the center. Avoid holding the system board by the "neck" area to avoid damaging it. 2. Replace the M2x4 (4) screws that secure the system board to the palm-rest assembly. 3. Angle the system board onto the palm-rest assembly with the SD-card slot side.
4. Connect the power-adapter port cable, speaker cable, keyboard-control board cable, touchpad cable, and touch-screen cable to the system board. 5. Connect the display cable to the system board. 6. Align the display-cable bracket with the screw hole on the system board and replace the screw (2). 7. Install the: a. b. c. d. e. f. g. h. i. Memory SSD Keyboard Heatsink assembly Fans Hard drive(optional) WLAN card Battery Base cover 8. Follow the procedures in After Working Inside Your Computer.
b. Remove the M2x3 (2) screws that secure the audio board to the system board [1]. c. Lift up the audio board [2]. Installing audio board Steps 1. Align the audio port in the slot of the system board. 2. Replace the M2x3 (2) screws to secure the audio board to the system board. 3. Turn the system board over. 4. Install the: a. b. c. d. e. f. g. h. System Board Memory Heatsink assembly Fans Hard drive WLAN card Battery Base cover 5. Follow the procedures in After Working Inside Your Computer.
Coin-cell battery Removing the Coin-Cell Battery Steps 1. Follow the procedures in Before Working Inside Your Computer. CAUTION: Removing the coin-cell battery re-sets the BIOS settings to default. It is recommended that you note the BIOS settings before removing the coin-cell battery. 2. Remove the: a. b. c. d. e. f. g. h. base cover battery WLAN card hard drive fans heatsink assembly memory modules system board 3. Perform the following steps to remove the coin-cell battery: a.
Installing the Coin-Cell Battery Steps 1. Replace the coin-cell battery in its slot in the computer. 2. Connect the coin-cell battery cable to the system board. 3. Turn the system board over. 4. Install the: a. b. c. d. e. f. g. h. System Board Memory Heatsink assembly Fans Hard drive WLAN card Battery Base cover 5. Follow the procedures in After Working Inside Your Computer. Power button Removing power button Steps 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove the: a.
Installing power button Steps 1. Align the power button into the slot on the system chassis. 2. Replace the M1.6x3 (2) screws that secure the power button to the system board. 3. Install the: a. Battery b. Base cover 4. Follow the procedures in After Working Inside Your Computer. Power button with fingerprint reader -optional Removing power button with fingerprint reader Steps 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove the: a. base cover b. battery 3.
● Power button with fingerprint reader function without light indicator (optional). b. c. d. e. Release the Mylar tape that secures the power button board to the system chassis [2]. Remove the M1.6x1.5 (1) screw that secures the power button board to the system chassis [3]. Disconnect and release the adhesive data cable from the system chassis [4] Lift the power button board away from the system chassis [5]. Installing power button with fingerprint reader Steps 1.
7. Follow the procedures in After Working Inside Your Computer. Display Assembly Removing the Display Assembly Steps 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove the: a. base cover b. battery 3. Perform the following steps: a. b. c. d. e. f. Release the Mylar tape that secures the display cable to the system board [1]. Lift the latch and disconnect the display cable from the connector on the system board [2].
Installing the Display Assembly Steps 1. Place the palm-rest assembly at the edge of the table with the speakers facing away from the edge. 2. Align the screw holes on the palm-rest assembly with the screw holes on the display hinges. 3. Replace the M2.5 x 5 (6) screws that secure the display hinges to the palm-rest assembly. 4. Route thetouchscreen cable through the routing guides on the fan. 5. Connect thetouchscreen cable and display cable to the system board. 6.
2. Remove the: a. b. c. d. base cover battery WLAN card display assembly 3. Gently place the system on a flat surface . 4. Rotate the hinges to angle 45° to release the antenna cable. 5. Slide and lift the antenna cover away from the display assembly. 6. To remove the antenna module: a. Remove the copper tapes that secure the antenna module [1].
b. Remove the M2x4 (4) screws and lift the metal brackets that secure the antenna cable [2,3]. Installing the antenna cover Steps 1. Replace the antenna cover on the display assembly. 2. Turn the display hinges to the normal position. 3. Install the: a. b. c. d. Display assembly WLAN card Battery Base cover 4. Follow the procedures in After Working Inside Your Computer. Keyboard lattice and Keyboard Removing the Keyboard Steps 1. Follow the procedures in Before Working Inside Your Computer. 2.
f. memory modules g. system board 3. Perform the following steps to disconnect the keyboard and backlight connectors from the computer. a. Lift up the latch [1] and the disconnect the cables from the connectors [2]. b. Peel back the screw shields [3]. 4. Un-route the Keyboard cable [1] and then remove the M1.6 x 1.5 (31) screws that secure the keyboard to the computer [2]. 5. Disconnect the cable from the connector on the system board. 6.
Installing the Keyboard Steps 1. Adhere the Mylar to the keyboard. 2. Align the screw holes on the keyboard with the screw holes on the palm-rest assembly. 3. Replace the M1.6 x 1.5 (31) screws that secure the keyboard to the palm-rest assembly. 4. Adhere the Mylar to the screws that secure the keyboard to the palm-rest assembly. 5. Connect the keyboard cable and keyboard-backlight cable to the keyboard-controls board. 6. Install the: a. System Board b. Hard drive c. Base cover 7.
d. e. f. g. h. i. j. k. l. hard drive fans speakers heatsink assembly memory modules system board display assembly power connector port keyboard 3. After performing the above steps, we are left with the palm rest assembly.
Figure 1. Power button with light indicator Figure 2.
Installing the Palm rest Assembly Steps 1. Align the palm rest assembly on the display assembly. 2. Tighten the screws to secure the display hinges to the palm rest assembly. 3. Press down on the palm rest assembly to close the display. 4. Install the: a. b. c. d. e. f. g. h. i. j. k. l. keyboard system board power connector port display assembly fans heatsink assembly speakers WLAN card hard drive(optional) memory modules battery base cover 5.
5 Troubleshooting Topics: • Enhanced Pre-Boot System Assessment — ePSA diagnostics Enhanced Pre-Boot System Assessment — ePSA diagnostics About this task The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the BIOS and is launched by the BIOS internally.
6 Getting help Topics: • Contacting Dell Contacting Dell Prerequisites NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. About this task Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Steps 1.
