Dell Precision 7520 Owner's Manual
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- Owner's manual (84 pages) ,
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- Setup and specifications (23 pages)
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Summary of Contents for Dell Precision 7520
- Page 1 Dell Precision 7520 Owner's Manual Regulatory Model: P53F Regulatory Type: P53F002...
- Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2017 2018 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.
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Page 3: Table Of Contents
Contents 1 Working on your computer..........................7 Safety instructions................................7 Turning off your — Windows............................7 Before working inside your computer..........................7 After working inside your computer..........................8 2 Disassembly and reassembly..........................9 Recommended tools................................9 SD card....................................9 Removing SD card............................... 9 Installing SD card................................9 Battery cover.................................. - Page 4 Installing the WLAN Card............................21 Solid State Drive — optional ............................21 Removing the M.2 Solid State Drive -SSD module....................21 Installing the M.2 SSD module..........................22 Coin-cell battery................................22 Removing the coin cell battery..........................22 Installing the coin cell battery........................... 23 Power connector port..............................23 Removing the power connector port........................
- Page 5 Installing the USB board............................42 Display bezel..................................43 Removing the display bezel............................43 Installing the display bezel............................43 Display panel..................................44 Removing the display panel............................44 Installing the display panel............................45 Removing the display panel............................46 Installing the display panel............................48 Display bracket................................. 48 Removing the display bracket..........................48 Installing the display bracket.............................49 Display hinges...................................
- Page 6 Deleting or changing an existing system setup password..................81 6 Troubleshooting............................83 Enhanced Pre-Boot System Assessment — ePSA diagnostics................83 Running the ePSA Diagnostics..........................83 Diagnostic LED................................. 84 Battery status lights.................................84 Real Time Clock reset..............................85 Testing memory using ePSA............................85 7 Contacting Dell............................86 Contents...
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Page 7: Working On Your Computer
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. -
Page 8: After Working Inside Your Computer
CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for other Dell computers. Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard. -
Page 9: Disassembly And Reassembly
Disassembly and reassembly Recommended tools The procedures in this document require the following tools: • Phillips #0 screwdriver • Phillips #1 screwdriver • Plastic scribe NOTE: The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4 SD card Removing SD card Follow the procedure in... -
Page 10: Installing The Battery Cover
In such an instance, the entire system should be replaced. Contact https://www.dell.com/support assistance and further instructions. • Always purchase genuine batteries from https://www.dell.com or authorized Dell partners and re-sellers. Removing the battery Follow the procedure in Before working inside your computer. Remove the battery cover. -
Page 11: Installing The Battery
Installing the battery Slide the battery into its slot until it clicks into place. Install the battery cover. Follow the procedure in After working inside your computer Hard drive Removing the hard drive Follow the procedure in Before working inside your computer. -
Page 12: Installing The Hard Drive
Remove the M3.0x3.0 screws that secure the hard drive. Lift the hard drive from the bracket. Installing the hard drive Replace the M3.0x3.0 screws to secure the hard drive to the hard drive bracket. Insert the hard drive into its slot in the computer. Replace the M3.0x3.0 screws to secure the hard drive to the computer. -
Page 13: Hard Drive Cable Connector
Hard drive cable connector Removing the hard drive cable connector Follow the procedures in Before working inside your computer. Remove the: battery cover battery base cover hard drive To remove the hard drive cable connector: Remove the M2.5x5.0 screws that secure the hard drive connector to the system board [1]. b Remove the hard drive cable connector from the computer [2]. -
Page 14: Keyboard Lattice And Keyboard
Keyboard lattice and Keyboard Removing the keyboard Follow the procedures in Before working inside your computer. Remove the: battery cover battery hard drive To remove keyboard cable: Peel the tape to access the keyboard cable [1]. b Disconnect the keyboard cables from the touchpad board [2] To remove the keyboard: Using plastic scribe pry the keyboard trim from the bottom and work along the top edge and remove it from the computer [1, 2, b Remove the M2.0x2.5 screws that secure the keyboard to the computer [4]. -
Page 15: Installing The Keyboard
Installing the keyboard Align the keyboard and route the cables back through to the bottom of the compartment. Press and align the keyboard to its compartment. Replace the screws to secure the keyboard to the computer. Slide the keyboard trim and align it to its position on the computer. Ensure that the keyboard trim clicks into its place Connect the keyboard data cables to the touchpad board. -
Page 16: Installing The Base Cover
Installing the base cover Slide the base cover to align with the screw holes on the computer. Replace the M2.5X5.0 screws to secure the base cover to the computer. Install the: battery battery cover Follow the procedure in After working inside your computer. -
Page 17: Installing The Sim Card
Installing the SIM card Slide in the SIM Card into its compartment and press until its fully engaged with a click sound. NOTE: During installation or removal of the SIM card, always ensure all data is backed up properly. Install the: base cover battery battery cover... -
Page 18: Installing The Primary Memory Module
Pry the retention clips away from the memory module until it pops up. b Lift the memory module and remove it from the computer. Installing the primary memory module Insert the memory module into the memory socket. NOTE: Installing one or three memory modules leads to system performance issues. Press the clips to secure the memory module to the system board. -
Page 19: Installing The Secondary Memory Module
Installing the secondary memory module Insert the memory module into the memory socket. Press the clips to secure the memory module to the system board. Place the memory shield in its original position on the memory module and tighten the screw to secure it to the computer. Install the: keyboard hard drive... -
Page 20: Installing The Wwan Card
Installing the WWAN card NOTE: Depending on the configuration you choose, you may or may not have WWAN card. Slide the WWAN card to the WWAN card slot. Replace the M2.0x3.0 screw to secure the WWAN card to the computer. Route the antenna cables through the routing channels and connect them to the WWAN card. -
Page 21: Installing The Wlan Card
Installing the WLAN Card Insert the WLAN card in its slot on the computer. Route the antenna cables through the routing channel and connect them to the WLAN card. Align the shield and tighten the M2.0x3.0 screw to secure the WLAN card to the computer. Install the: base cover battery... -
Page 22: Installing The M.2 Ssd Module
Installing the M.2 SSD module Place the SSD in its slot. Replace the M2.0x3.0 screw to secure the SSD to the computer. Place the thermal plate on the SSD. Replace the M2.0x3.0 screw to secure the thermal plate to the computer. Install the: base cover battery... -
Page 23: Installing The Coin Cell Battery
Installing the coin cell battery Replace the coin cell battery in its slot on the computer. Connect the coin cell battery cable to the comupter. NOTE: Ensure that the coin cell battery cable does not protrude outside its compartment. Install the: base cover battery battery cover... -
Page 24: Installing The Power Connector Port
Installing the power connector port Replace the power connector cable on the computer. Route the cable through the routing channel Replace the M2.5x5.0 screw to secure the power connector port to the computer. Connect the power connector cable. Install the: base cover battery battery cover... - Page 25 To remove palmrest: Lift the tab and disconnect the fan cable [1] and system board cable [ 2]. b Remove the 11 screws (M2.5x5.0, M2.0x3.0) that secure the palmrest to the computer [3]. By using plastic scribe release the tabs on the edges of the palmrest and remove the palmrest from the computer [4]. Disassembly and reassembly...
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Page 26: Installing The Palmrest
Installing the palmrest Align the palmrest on the computer and press until it snaps in its place. Replace the 11 screws M2.5x5.0, M2.0x3.0) that secure the palmrest to the computer. Connect the following cables: system board cable b fan cable Flip the computer and tighten the 15 screws (M2.5x5.0, M2.0x8.0, M2.0x3.0) at the bottom of the computer. -
Page 27: Installing The Speakers
Installing the speakers Align the speakers along the slots on the computer. Route the speaker cable through the routing tabs on the computer. Connect the speaker cable to the system board. Install the: palmrest keyboard hard drive base cover battery battery cover Follow the procedure in After working inside your... -
Page 28: Installing The Left Io Board
To remove I/O board: Remove the M2.5x5.0 screws that secure the thunderbolt bracket to the computer [1]. b Lift the bracket from the thunderbolt connector [2]. Remove the M2.5x5.0 screws that secure the I/O board to the computer [3]. d Lift the I/O board upwards to and remove it from the computer. Installing the left IO board Slide the I/O board into its slot on the computer. -
Page 29: Installing The Right Io Board
hard drive keyboard palmrest To remove I/O board: Disconnect the right speaker cable from the I/O board [1]. b Remove the M2.5x5.0 screws that secure the I/O board to the computer [2]. Lift the I/O board upwards to and remove it from the computer [3]. Installing the right IO board Connect the I/O board connector cable and slide the I/O board into its slot on the computer. -
Page 30: Heat Sink
Heat sink Removing the heat sink assembly Follow the procedure in Before working inside your computer. Remove the: battery cover battery base cover hard drive keyboard palmrest To remove heat sink: Disconnect the fan cables from the computer [1, 2] . b Loosen the captive M2.5x5.0 screws that secure the heat sink assembly to the computer [3]. -
Page 31: Graphics Card
battery battery cover Follow the procedure in After working inside your computer. Graphics card Removing the graphic card Follow the procedure in Before working inside your computer. Remove the: battery cover battery base cover hard drive keyboard palmrest heat sink To remove the graphic card: Remove the M2.0x3.0 screws that secure the graphic card to the computer [1]. -
Page 32: System Board
palmrest keyboard hard drive base cover battery battery cover Follow the procedure in After working inside your computer. System board Removing the system board Follow the procedure in Before working inside your computer. Remove the: SD card battery cover battery base cover hard drive keyboard... -
Page 33: Installing The System Board
To remove system board: Remove the M2.5X5.0 screws that secure the system board [1]. b Slide and lift system board from the computer [2]. Installing the system board Align the system board into its original position on the computer. Replace the M2.5x5.0 screws to secure the system board to the computer. Connect the following cables: power connector Disassembly and reassembly... -
Page 34: Fingerprint Reader
b eDP Place the metal bracket and tighten the M2.5x5.0 screw to secure the eDP cable to the computer. Install the: heat sink I/O board (right) I/O board (left) palmrest power connector port graphic card M.2 SSD card WWAN card WLAN card primary memory secondary memory... -
Page 35: Installing The Fingerprint Reader
Installing the fingerprint reader Align the fingerprint reader into its original position on the chassis. Connect the finger print reader cable. Place the metal bracket on the chassis. Replace the M2.0X3 screws to secure the fingerprint reader to the chassis. Affix the adhesive tape to secure the fingerprint reader. -
Page 36: Touchpad
Touchpad Removing the touchpad Follow the procedure in Before working inside your computer. Remove the: battery cover battery base cover hard drive keyboard palmrest system board To remove the touchpad: Lift and disconnect the touchpad cable from the computer [1]. b Remove the M2.0X3 screws that secure the touchpad to the computer [2]. -
Page 37: Display Assembly
keyboard hard drive base cover battery battery cover Follow the procedure in After working inside your computer. Display assembly Removing the display assembly Follow the procedure in Before working inside your computer. Remove the: battery cover battery base cover hard drive keyboard WLAN card WWAN card... -
Page 38: Installing The Display Assembly
To remove display assembly: Flip the computer and open the display. b Remove the M2.0X3 screw that secures the eDP cable bracket [1]. Remove the eDP cable bracket [2]. d Peel off the tape on the heat sink and disconnect the eDP cable from the system board [3]. Remove the M2.0X3 screws that secure the display assembly to the computer and remove it from the computer [4]. -
Page 39: Power Switch Board
Affix the tape on the heat sink. Connect the eDP cable to the connectors on the system board. Insert the wireless antenna cables through the routing hole on the chassis. Replace the display assembly M2.0X3 screws at the bottom and back of the computer. Align the display hinge cap and tighten the M2.5x4.0 screws to secure it to the computer. -
Page 40: Installing The Power Switch Board
Installing the power switch board Place the power switch in the slot on the computer. Replace the M2.0X3 screws that secure power switch board on the computer. Connect the power switch board cable on the computer. Install the: palmrest keyboard hard drive base cover battery... -
Page 41: Installing The Expresscard
palmrest To remove expresscard: Disconnect the expresscard cable from the computer [1]. b Remove the M2.5x5.0 screws that secure expresscard to the computer [2]. Remove the expresscard board from the computer [3]. Installing the expresscard Place the expresscard on the computer. Replace the M2.5x5.0 screws that secure expresscard on the computer. -
Page 42: Removing The Usb Board
Removing the USB board Follow the procedure in Before working inside your computer. Remove the: battery cover battery base cover hard drive keyboard palmrest To remove USB board: Disconnect the USB board cable from the computer [1]. b Remove the adhesive tape that secures USB board to the computer [2]. Lift the USB board from the computer [3]. -
Page 43: Display Bezel
battery battery cover Follow the procedure in After working inside your computer. Display bezel Removing the display bezel NOTE: For non touch systems perform following steps.. Follow the procedure in Before working inside your computer. Remove the: battery cover battery base cover hard drive keyboard... -
Page 44: Display Panel
Install the: display assembly palmrest keyboard hard drive base cover battery battery cover Follow the procedure in After working inside your computer. Display panel Removing the display panel NOTE: For non touch systems perform following step. Follow the procedure in Before working inside your computer. -
Page 45: Installing The Display Panel
To remove display panel: Peel the adhesive tape to access the eDP cable [1]. b Remove the blue adhesive tape [2]. Lift the metal tab display panel [3]. d Disconnect the cable and lift the display panel. Installing the display panel NOTE: For non touch systems perform following steps. -
Page 46: Removing The Display Panel
Removing the display panel NOTE: For touch systems perform following step. Follow the procedure in Before working inside your computer. Remove the: battery cover battery base cover hard drive keyboard palmrest display assembly display bezel To remove the display panel: Using a plastic scribe lift the edges of the display panel to disengage it from the display assembly. - Page 47 Peel the adhesive tape to access the eDP cable [1, 3]. d Disconnect the eDP and display cables from the connector on the back of the display panel [2, , 4, 6]. Disassembly and reassembly...
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Page 48: Installing The Display Panel
Installing the display panel NOTE: For touch systems perform following steps. To install the display panel for touch systems: Place the display panel on a flat surface. b Connect the eDP and display cables to the connector on the back of the display panel and affix the adhesive tape. Turn the display assembly over. -
Page 49: Installing The Display Bracket
Installing the display bracket NOTE: For non touch systems perform following steps. Place the display brackets in its slot on the display cover. Replace the M2.5x4.0 screws to secure the display bracket.. Install the: display panel display bezel display assembly palmrest keyboard hard drive... -
Page 50: Installing The Display Hinge
battery cover battery base cover hard drive keyboard palmrest display assembly display bezel display panel To remove display hinge: Remove the M2.5x4.0 screws that secure display hinges [1]. b Remove the display hinges from the display cover [2]. Installing the display hinge NOTE: For non touch systems perform following steps. -
Page 51: Edp Cable
Follow the procedure in After working inside your computer. eDP cable Removing the eDP cable NOTE: For non touch systems perform following steps. Follow the procedure in Before working inside your computer. Remove the: battery cover battery base cover hard drive keyboard palmrest display assembly... -
Page 52: Installing The Edp Cable
Installing the eDP cable NOTE: For non touch systems perform following steps. Route the eDP cable on the display cover. Affix the eDP cable on the display cover. Install the: display panel display bezel display assembly palmrest keyboard hard drive base cover battery battery cover... -
Page 53: Installing The Camera
Installing the camera NOTE: For non touch systems perform following steps. Place the camera module in its slot on the computer. Connect the camera cable. Affix the eDP cable. Install the: display bezel display assembly palmrest keyboard hard drive base cover battery battery cover Follow the procedure in... - Page 54 base cover hard drive keyboard palmrest display assembly display bezel display panel display bracket display hinge camera eDP cable The component you are left with is the display cover. Install: eDP cable camera display hinge display bracket display panel display bezel display assembly palmrest keyboard...
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Page 55: Technology And Components
Technology and components This chapter details the technology and components available in the system. Topics: • Power adapter • Processors • USB features • HDMI 1.4 Power adapter This laptop is shipped with 180 W power adapters. WARNING: When you disconnect the power adapter cable from the laptop, grasp the connector, not the cable itself, and then pull firmly but gently to avoid damaging the cable. -
Page 56: Usb Features
• Intel 14nm Manufacturing Process Technology • Intel Turbo Boost Technology • Intel Hyper Threading Technology • Intel Built-in Visuals – Intel HD graphics - exceptional videos, editing smallest details in the videos – Intel Quick Sync Video - excellent video conferencing capability, quick video editing and authoring –... -
Page 57: Speed
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 1.1 respectively, the slower modes still operate at 480Mbps and 12Mbps respectively and are kept to maintain backward compatibility. -
Page 58: Compatibility
• USB 3.0/USB 3.1 Gen 1 RAIDs • 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 2.0 contacts in the exact same location as before. -
Page 59: Advantages Of Hdmi
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 •... -
Page 60: System Specifications
System specifications NOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more information about the configuration of your computer, go to Help and Support in your Windows operating system and select the option to view information about your computer. -
Page 61: Processor
Processor Feature Specification Processor type • 6th generation Intel i7, Xeon processors (SkyLake) • 7th generation Intel Core i5, i7 and Xeon processors (KabyLake) L1 cache Up to 32 KB cache depending on processor type L2 cache Up to 256 KB cache depending on processor type L3 cache Up to 8 MB cache depending on processor type Intel Smart cache... -
Page 62: Audio
• Intel WiFi Link 8265 2x2 802.11ac+BT 4.2 (vPro) • Intel WiFi Link 8265 2x2 802.11ac NBT (vPro) • Dell DW 1820 2x2 802.11ac+BT 4.2 US Optional Mobile broadband and GPS • DW5811e (Gobi 4G/LTE - FMC) • DW5814e (Gobi 4G/LTE) -
Page 63: Display
Micro Subscriber Identity Module (Micro SIM) port Smart card (optional) Display Features Specification Type • FHD (1920 x 1080) • UHD (3840 x 2160) Size 15.6 inches Dimensions: Height 193.59 mm (7.62 inches) Width 344.16 mm (13.54 inches) Diagonal 396.24 mm (15.60 inches) Active area (X/Y) •... -
Page 64: Touchpad
Number of keys • United States: 103 keys • United Kingdom: 104 keys • Brazil: 106 keys • Japan: 107 keys Layout QWERTY/AZERTY/Kanji Touchpad Features Specification X/Y position • X: 41.27+-4.13 counts/mm resolution • Y: 38.75+-3.88 counts/mm • 1048/984 cpi Size Sensor-active area: •... -
Page 65: Battery
• 1TB 2.5" 7mm SATA Solid State Drive Class 20 • M.2 PCIe 256GB SSD Class 40 • M.2 PCIe 512GB SSD Class 40 • M.2 PCIe 512GB SED SSD Class 40 • M.2 PCIe 1TB SSD Class 40 • M.2 PCIe 2TB SSD Class 40 •... -
Page 66: Contactless Smart Card
Height 30 mm (1.18 inches) Width 155 mm (6.10 inches) Depth 76.2 mm (3.0 inches) Weight 0.58 kg (1.28 lb) Temperature range: Operating 0°C to 40°C (32°F to 104°F) Non-Operating –40°C to 70°C (–40°F to 158°F) Contactless smart card Features Specification Supported Smart •... - Page 67 Storage 20% to 80% (non-condensing) Maximum vibration: Operating 5 to 350 Hz at 0.0002 G²/Hz Storage 5 to 500 Hz at 0.001 to 0.01 G²/Hz Maximum shock: Operating 40 G +/- 5% with pulse duration of 2 msec +/-10% (equivalent to 51 cm/sec [20 in/sec]) Storage 105 G +/- 5% with pulse duration of 2 msec +/-10% (equivalent to 127 cm/sec [50 in/sec]) Maximum Altitude:...
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Page 68: System Setup
Boot menu Press <F12> when the Dell logo appears to initiate a one-time boot menu with a list of the valid boot devices for the system. Diagnostics and BIOS Setup options are also included in this menu. The devices listed on the boot menu depend on the bootable devices in the system. -
Page 69: System Setup Options
Keys Navigation Spacebar Expands or collapses a drop-down list, if applicable. Moves to the next focus area. NOTE: For the standard graphics browser only. Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message that prompts you to save any unsaved changes and restarts the system. -
Page 70: System Configuration Screen Options
Option Description • Never Date/Time Allows you to change the date and time. System Configuration screen options Option Description Integrated NIC Allows you to configure the integrated network controller. The options are: • Disabled • Enabled • Enabled w/PXE: This option is enabled by default. Parallel Port Allows you to configure the parallel port on the docking station. - Page 71 If USB port is disabled, the OS cannot see any device attached to this port. The options are: • Enable Boot support (by default enable) • Enable Thunderbolt ports (by default enable) • Always Allow dell docks • Enable external USB ports Others: • Enable Thubderbolt Boot Support •...
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Page 72: Video Screen Options
Option Description • never Touchscreen Controls whether the touch screen is enabled or disabled (enabled by default). Keyboard Backlight The Keyboard Backlight Time-out dims out with Battery option. The main keyboard illumination feature is not Timeout on Battery affected. Keyboard Illumination will continue to support the various illumination levels. This field has an effect when the backlight is enabled. - Page 73 Option Description NOTE: You must set the admin password before you set the system or hard drive password. Deleting the admin password automatically deletes the system password and the hard drive password. NOTE: Successful password changes take effect immediately. Default setting: Not set System Password Allows you to set, change or delete the system password.
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Page 74: Secure Boot Screen Options
Option Description • PPI Bypass for Enabled Commands (selected by default) • PPI Bypass for Disabled Commands • Disabled • Enabled • Attestation enable (selected by default) • Key storage enable (selected by default) • SHA-256 (selected by default) NOTE: To upgrade or downgrade TPM1.2/2.0, download the TPM wrapper tool (software). -
Page 75: Intel Software Guard Extensions Screen Options
Option Description • • • If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are: • Save to File—Saves the key to a user-selected file • Replace from File—Replaces the current key with a key from a user-selected file •... -
Page 76: Power Management Screen Options
Standby, the system setup removes power from all the USB ports to conserve battery power. • Enable USB Wake Support • Wake on Dell USB-C dock Wireless Radio Allows you to enable or disable the feature that automatically switches from wired or wireless networks without Control depending on the physical connection. -
Page 77: Post Behavior Screen Options
Configuration • Standard — Fully charges your battery at a standard rate. • ExpressCharge — The battery charges over a shorter period of time using Dell’s fast charging technology. This option is enabled by default. • Primarily AC use •... -
Page 78: Manageability Screen Options
Option Description NOTE: When setup is running, this option has no effect. Setup works in Fn Key Only mode. Mouse/Touchpad Allows you to define how the system handles mouse and touch pad input. The options are: • Serial Mouse • PS2 Mouse •... -
Page 79: Virtualization Support Screen Options
Virtualization support screen options Option Description Virtualization Allows you to enable or disable the Intel Virtualization Technology. Enable Intel Virtualization Technology (default). VT for Direct I/O Enables or disables the Virtual Machine Monitor (VMM) from utilizing the additional hardware capabilities provided by Intel®... -
Page 80: System Log Screen Options
If BitLocker is enabled, it must be suspended prior to updating the system BIOS, and then re-enabled after the BIOS update is completed. Restart the computer. Go to Dell.com/support. • Enter the Service Tag or Express Service Code and click Submit. -
Page 81: System And Setup Password
Click Run to install the updated BIOS settings on your computer. Follow the instructions on the screen. System and setup password Table 2. System and setup password Password type Description System password Password that you must enter to log on to your system. Setup password Password that you must enter to access and make changes to the BIOS settings of your computer. - Page 82 NOTE: If you change the System and/or Setup password, re-enter the new password when prompted. If you delete the System and/or Setup password, confirm the deletion when prompted. Press Esc and a message prompts you to save the changes. Press Y to save the changes and exit from System Setup. The computer reboot.
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Page 83: Troubleshooting
Invoke diagnostics boot by either of the methods that are suggested below: Power on the computer. As the computer boots, press the F12 key when the Dell logo is displayed. In the boot menu screen, use Up/Down arrow key to select the Diagnostics option and then press Enter. -
Page 84: Diagnostic Led
If the computer is connected to an electrical outlet, the battery light operates as follows: Alternately blinking An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop. Re-plug battery connector, amber light and replace battery if the issue reoccurs. -
Page 85: Real Time Clock Reset
Real Time Clock reset The Real Time Clock (RTC) reset function allows you to recover your Dell system from No POST/No Boot/No Power situations. To initiate the RTC reset on the system make sure system is in a power-off state and is connected to power source . Press and hold the power button for 25 seconds and then release the power button. -
Page 86: Contacting Dell
Dell product catalog. 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: Go to Dell.com/support.
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Questions and answers
Can I make my precision 7520 wireless
Yes, the Dell Precision 7520 can be made wireless. It supports wireless connectivity through internal Wi-Fi and Bluetooth cards, such as the Intel AC8265NGW. However, some models may not include Bluetooth or have it disabled in the BIOS, which can limit wireless functionality. Replacing the wireless card, like with an Intel AX210NGW, does not guarantee Bluetooth support if the BIOS option is unavailable. Wi-Fi functionality should still work with compatible cards.
This answer is automatically generated