Dell Latitude 7490 Скачать руководство пользователя страница 33

Страница: 33 / 92

8. Remove the display bezel from the display assembly.

Installing touch display panel

NOTE:

The touch display panel installation procedure is applicable only for systems with touch display configuration.

1. Place the display panel on the display assembly.

2. Reconnect the IR cable and eDP cable.

3. Replace the adhesive tapes and the Mylar shield.

4. Press the edges of the display panel until it clicks into the display assembly.

5. Install the

display assembly

6. Install the

WLAN card

7. Install the

WWAN card

8. Connect the battery cable to the connector on the system board.

9. Install the

base cover

10. Follow the procedure in

After working inside your computer

Display Bezel

Removing display bezel (nontouch)

NOTE:

The display bezel removal procedure is applicable only for nontouch display configuration.

Removing and installing components

Содержание Latitude 7490

Страница 1: ...Latitude 7490 Owner s Manual Regulatory Model P73G Regulatory Type P73G002 August 2021 Rev A04 ...

Страница 2: ...tial 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 2017 2021 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 ...

Страница 3: ...emoving base cover 13 Installing base cover 14 Battery 14 Lithium ion battery precautions 14 Removing battery 15 Installing battery 16 Solid state drive 16 Removing Solid State Drive 16 Installing Solid State Drive 17 Speaker 17 Removing speaker module 17 Installing speaker module 19 Coin cell battery 19 Removing the coin cell battery 19 Installing coin cell battery 20 WWAN card 20 Removing WWAN c...

Страница 4: ...y bezel nontouch 34 Nontouch display panel 35 Removing the display panel nontouch 35 Installing the display panel nontouch 37 Camera Microphone Module 37 Removing camera microphone module 37 Installing camera 39 Display Hinge Caps 39 Removing the display hinge cap 39 Installing the display hinge cap 40 System board 40 Removing system board 40 Installing system board 44 Keyboard 44 Removing keyboar...

Страница 5: ...min and System password 75 Assigning a system setup password 75 Deleting or changing an existing system setup password 75 Updating the BIOS 76 Updating the BIOS in Windows 76 Updating the BIOS in Linux and Ubuntu 76 Updating the BIOS using the USB drive in Windows 76 Updating the BIOS from the F12 One Time boot menu 77 System and setup password 77 Assigning a system setup password 78 Deleting or c...

Страница 6: ... Power rail test L BIST 87 LCD Built in Self Test BIST 88 Diagnostic LED behavior 88 Recovering the operating system 90 Real Time Clock reset 90 Backup media and recovery options 91 WiFi power cycle 91 Drain residual flea power perform hard reset 91 Chapter 8 Getting help and contacting Dell 92 6 Contents ...

Страница 7: ...r 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 ...

Страница 8: ... 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 dam...

Страница 9: ...om their electrical outlets 6 Open the display 7 Press and hold the power button for few seconds to ground the system board CAUTION To guard against electrical shock unplug your computer from the electrical outlet before performing Step 8 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...

Страница 10: ...uch display panel Camera Microphone Module Display Hinge Caps System board Keyboard Palm rest 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 Screw size list Table 1 Latitude 7490 Screw size list Component M2 5x 6 0 M2 5x5 0 M...

Страница 11: ...Subscriber identification module card Removing SIM card or SIM card tray NOTE SIM card or SIM card tray removal is only available on systems that are shipped with WWAN module Hence removing procedure is only applicable for systems that are shipped with WWAN module CAUTION Removing the SIM card with the system is turned On may cause data loss or damage to the card Ensure that your system is turned ...

Страница 12: ...t be removed from the system before removing the system board To remove the SIM card tray from the system follow the steps outlined in the disassembly section NOTE For models shipped with a wireless card only a dummy SIM card tray must first be removed from the system before removing the system board The following are the steps for removing the dummy SIM card tray 1 Push the release latch located ...

Страница 13: ...captive screws that secure the base cover to the system 1 NOTE Exercise caution when loosening the screws Angle the screw driver to match the head of the screws Bottom Two to avoid a possible stripped screw head b Use a plastic scribe to release the base cover from the edge 2 3 Lift the base cover from the system Removing and installing components 13 ...

Страница 14: ...ery precautions CAUTION Exercise caution when handling Lithium ion batteries Discharge the battery completely before removing it Disconnect the AC power adapter from the system and operate the computer solely on battery power the battery is fully discharged when the computer no longer turns on when the power button is pressed Do not crush drop mutilate or penetrate the battery with foreign objects...

Страница 15: ...ver 3 To remove the battery a Disconnect the battery cable from the connector on the system board 1 NOTE The Latitude features either a 3 cell or 4 cell battery which needs to be removed before replacing the customer replaceable unit CRU parts Therefore when performing any disassembly procedure the battery connection must be disconnected immediately after removing the bottom cover This procedure i...

Страница 16: ... cell has a single screw a larger battery 4 cell has two screws 4 Install the base cover 5 Follow the procedure in After working inside your computer Solid state drive Removing Solid State Drive 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the Solid State Drive a Loosen the tw...

Страница 17: ...he base cover 6 Follow the procedure in After working inside your computer Speaker Removing speaker module 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To release the speaker module a Disconnect the speaker cable from the connector on the system board 1 NOTE Use a plastic scribe to rele...

Страница 18: ...5 Lift the speaker module from the computer 18 Removing and installing components ...

Страница 19: ...e base cover 6 Follow the procedure in After working inside your computer Coin cell battery Removing the coin cell battery 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the coin cell battery a Disconnect the coin cell battery cable from the connector on the system board 1 NOTE ...

Страница 20: ...ving or replacing the RTC battery or system board for Latitude 7490 the RTC battery cable must be routed in the routing channels and secured within the notch on the system board 4 Connect the battery cable to the connector on the system board 5 Install the base cover 6 Follow the procedure in After working inside your computer WWAN card Removing WWAN card 1 Follow the procedure in Before working i...

Страница 21: ...N cables to the connectors on the WWAN card 3 Place the metal bracket and tighten the M2 0 x 3 0 screw to secure it to the computer 4 Connect the battery cable to the connector on the system board 5 Install the base cover 6 Follow the procedure in After working inside your computer NOTE The IMEI number can also be found on the WWAN card NOTE When installing the wireless and WWAN antennae must be r...

Страница 22: ...rs on the WLAN card 3 NOTE There is an adhesive pad on the routing pad of the system board which secure the wireless and WWAN cards Removing the wireless or WWAN card requires a small amount of additional force to separate the card from the adhesive pads d Remove the WLAN card from the system 4 Installing WLAN card 1 Insert the WLAN card into the connector on the system board 2 Connect the WLAN ca...

Страница 23: ...working inside your computer Memory modules Removing memory module 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the memory module a Pull the clips securing the memory module until the module snaps out 1 b Remove the memory module from the connector on the system board 2 Instal...

Страница 24: ...2 0 x 3 0 that secures the heat sink assembly to the system board 2 NOTE Remove the screws in the order of the callout numbers 1 2 3 4 as indicated on the heat sink b Lift and flip over the heat sink assembly from the system board c Disconnect the fan cable from the system board 1 d Separate the heat sink assembly from the system Installing heat sink assembly Heat sink assembly consists of heat si...

Страница 25: ...he base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the LED board a Disconnect the LED cable from the LED board 1 CAUTION Avoid pulling the cable as it would result in breaking the cable connector Instead use a scribe to push the edges of the cable connector to release the LED cable b Remove the M2 0 x 2 5 screw that secures the LED board to the system 2...

Страница 26: ...rt card module Removing smart card cage 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 Remove the PCIe SSD card 5 To disconnect the smart card cable a Disconnect the smart card cable 1 b Lift the smart card cable that is affixed to the touchpad module 2 6 To remove the smart card cage NOT...

Страница 27: ...onnector on the system board 6 Install the base cover 7 Follow the procedure in After working inside your computer Touchpad buttons board Removing touchpad buttons board 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 Remove the speaker 5 Remove the smart card module 6 To remove the touchp...

Страница 28: ...n the system 2 Replace the two M2 0 x 3 0 screws to secure the touchpad buttons board to the system 3 Connect the touchpad buttons board cable to the connector on the touchpad board 4 Install the smart card module 5 Install the speaker 6 Connect the battery cable to the connector on the system board 7 Install the base cover 8 Follow the procedure in After working inside your computer Power connect...

Страница 29: ...ower connector port from the computer 4 Installing power connector port 1 Install the power connector port into the slot on the system 2 Place the metal bracket on the power connector port 3 Replace the M2 0 x 3 0 screw to secure the power connector port to the system 4 Connect the power connector port cable to the connector on the system board 5 Connect the battery cable to the connector on the s...

Страница 30: ...pe adhered to the power adapter connector on the system board When removing the display assembly or system board the display bracket must be removed and the piece of tape must be peeled back in order to disconnect the display cable d Lift the eDP bracket from the eDP cable 4 e Lift the eDP cable to disconnect it from the connector on the system board 5 f Un route the eDP cable from the routing cha...

Страница 31: ...he routing pads on the system board and protective sleeves must be used to isolate the antenna connectors 7 Install the eDP metal bracket on the eDP cable and tighten the M2 0 x 3 0 screws 8 Connect the IR camera cable to the system board 9 Route the WLAN and WWAN cables through the routing channels 10 Install the WLAN card 11 Install the WWAN card 12 Connect the battery cable to the connector on ...

Страница 32: ...e display assembly 7 To remove the touch display panel a Use a plastic scribe to loosen the edges of the display panel b Flip the display screen over from the top c Peel the adhesive tape 1 Mylar shield 2 d Release the latch 3 and disconnect the eDP cable 4 e Peel the adhesive tape 5 and disconnect the IR cable 6 32 Removing and installing components ...

Страница 33: ...pes and the Mylar shield 4 Press the edges of the display panel until it clicks into the display assembly 5 Install the display assembly 6 Install the WLAN card 7 Install the WWAN card 8 Connect the battery cable to the connector on the system board 9 Install the base cover 10 Follow the procedure in After working inside your computer Display Bezel Removing display bezel nontouch NOTE The display ...

Страница 34: ...he bottom edge of the display bezel 1 b Loosen the tabs on the edges of the display 2 3 4 CAUTION The adhesive used on the LCD bezel to seal it with the LCD itself pry at edges and work your way around to release the bezel Seal can peel the layers up or crack the glass when trying to force pry the two items apart 8 Remove the display bezel from the display assembly Installing display bezel nontouc...

Страница 35: ...tion 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 Remove the WLAN card 5 Remove the WWAN card 6 Remove the display assembly 7 Remove the display bezel 8 Remove the hinge caps 9 To remove the display panel a Remove the two M2 0 x 2 0 screws on the panel 1 b Lift the bottom edge of the di...

Страница 36: ...isplay panel 1 e Peel off the mylar tape securing the display cable on the back of the display panel 2 f Lift the metal tab and disconnect the display cable from the back of the display panel 3 4 g Remove the display panel 36 Removing and installing components ...

Страница 37: ...e WLAN card 10 Install the WWAN card 11 Connect the battery cable to the connector on the system board 12 Install the base cover 13 Follow the procedure in After working inside your computer Camera Microphone Module Removing camera microphone module The removal procedure of the microphone camera module is only for a nontouch display configuration 1 Follow the procedure in Before working inside you...

Страница 38: ...NOTE The conductive tape is a separate part from the camera module that must be removed and then reattached when replacing the camera microphone module b Lift the camera microphone module 2 c Disconnect the camera FPC from the camera module 3 d Lift and remove the camera microphone module 4 38 Removing and installing components ...

Страница 39: ...lay hinges 6 Install the display panel 7 Install the WLAN card 8 Install the WWAN card 9 Connect the battery cable to the connector on the system board 10 Install the base cover 11 Follow the procedure in After working inside your computer NOTE The two conductive tape pieces must be removed and then reattached when replacing the camera module Display Hinge Caps Removing the display hinge cap 1 Fol...

Страница 40: ...cable for models shipped with an infinity bezel must be routed correctly in the routing channels around the left display hinge Then using the piece of tape attached to the display cable secure it to the display back cover 2 Install the display assembly 3 Install the WLAN card 4 Install the WWAN card 5 Connect the battery cable to the connector on the system board 6 Install the base cover 7 Follow ...

Страница 41: ... that secure memory module bracket to the system board 1 b Lift the memory module bracket from the system board 2 12 To disconnect the eDP cable display assembly 13 To disconnect the cables NOTE To disconnect the speaker LED board coin cell battery and the power connector port cables use a plastic scribe to release the cables from the connectors Do not pull the cable as it may result in breakage a...

Страница 42: ...move the USB type C bracket Image does not display the USB type C bracket removal b Remove the three M2 0 x 5 0 screws that secure the system board 1 c Lift the system board away from the computer 2 42 Removing and installing components ...

Страница 43: ...he two M2 0x5 0 screws that secure the USB Type C bracket 16 Flip the system board peel off the tapes securing the bracket and remove the USB Type C port from the system board Removing and installing components 43 ...

Страница 44: ... screws to secure it 6 Place the metal bracket over the memory module connectors and replace the M2 0 x 3 0 screws to secure it to the system NOTE Replacement system boards do not include the SIM card tray if available USB Type C bracket and DDR ESD bracket and must be transferred 7 Install the heat sink 8 Install the WLAN card 9 Install the WWAN card 10 Install the PCIe SSD card 11 Install the me...

Страница 45: ...N card 8 Remove the heat sink assembly 9 Remove the system board 10 Disconnect the cables from the palmrest end a keyboard cable 1 b keyboard backlight cable 2 USH Board cable Optional c Touchpad and USH board cables 3 4 11 To remove the keyboard assembly NOTE To identify the screws see screw list a Remove the 18 M2 0 x 2 5 screws that secure the keyboard 1 b Lift the keyboard assembly from the ch...

Страница 46: ...Remove the keyboard assembly 3 Remove the five M2 0 x 2 0 screws that secure the keyboard to the keyboard assembly 4 Lift the keyboard away from the keyboard tray Installing keyboard to keyboard tray 1 Align the keyboard with the screw holders on the keyboard tray 46 Removing and installing components ...

Страница 47: ...keyboard to the chassis 3 Connect the keyboard cable USH board cable optional keyboard backlight cable and touchpad cable to the connectors on the touchpad buttons board 4 Install the system board 5 Install the heat sink 6 Install the WLAN card 7 Install the WWAN card 8 Install the PCIe SSD card 9 Install the memory module 10 Connect the battery cable to the connector on the system board 11 Instal...

Страница 48: ...e palm rest 3 Replace the palm rest 4 Install the a speaker b coin cell battery c power connector port d system board e heat sink f WLAN card g WWAN card h PCIe SSD card i memory module j battery k base cover 5 Follow the procedure in After working inside your computer 48 Removing and installing components ...

Страница 49: ...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 ...

Страница 50: ...gital 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 NOTE The HDMI 1 4 will provide 5 1 channel audio support HDMI 1 4 Features HDMI Ethernet Channel Adds hig...

Страница 51: ... connection between host computers and peripheral devices like mice keyboards external drivers and printers Table 2 USB evolution Type Data Transfer Rate Category Introduction Year USB 2 0 480 Mbps High Speed 2000 USB 3 0 USB 3 1 Gen 1 5 Gbps SuperSpeed 2010 USB 3 1 Gen 2 10 Gbps SuperSpeed 2013 USB 3 0 USB 3 1 Gen 1 SuperSpeed USB For years the USB 2 0 has been firmly entrenched as the de facto i...

Страница 52: ... a real world maximum rate of 400MB s with overheads At this speed USB 3 0 USB 3 1 Gen 1 is a 10x improvement over USB 2 0 Applications USB 3 0 USB 3 1 Gen 1 opens up the laneways and provides more headroom for devices to deliver a better overall experience Where USB video was barely tolerable previously both from a maximum resolution latency and video compression perspective it s easy to imagine ...

Страница 53: ...time the device is transmitting data across the connection This could spell the end of all those proprietary laptop charging cables with everything charging via a standard USB connection You could charge your laptop from one of those portable battery packs you charge your smartphones and other portable devices from today You could plug your laptop into an external display connected to a power cabl...

Страница 54: ... Type C connector and cables It is compact and reversible 2 Thunderbolt 3 supports speed up to 40 Gbps 3 DisplayPort 1 2 compatible with existing DisplayPort monitors devices and cables 4 USB Power Delivery Up to 130W on supported computers Key Features of Thunderbolt 3 over USB Type C 1 Thunderbolt USB DisplayPort and power on USB Type C on a single cable features vary between different products ...

Страница 55: ...ated in the processor DRAM bus width 64 Bit Flash EPROM SPI 128 Mbits PCIe bus 100 MHz External Bus Frequency DMI 3 0 8GT s Operating System Microsoft Windows 10 Home Microsoft Windows 10 Pro 64 bit Ubuntu 16 04 LTS Windows 10 China Netcom Govt Edition Support China only Memory DDR4 2400 SDRAM operates at 2133 with Intel 7th Gen DDR4 2400 SDRAM operates at 2400 with Intel 8th Gen 2 DIMM slots supp...

Страница 56: ...0 SATA 2280 SSD 512 GB M 2 2280 SATA 2280 SSD 512 GB M 2 2280 SATA SED 2280 SSD 128 GB M 2 2280 PCIe SSD 256 GB M 2 2280 PCIe SSD 512 GB M 2 2280 PCIe SSD 1 TB M 2 2280 PCIe SSD 256 GB M 2 2280 PCIe SED SSD 512 GB M 2 2280 PCIe SED SSD Security TPM 2 0 FIPS 140 2 Certified TCG Certified February 2018 Optional Hardware Authentication Bundle 1 FIPS 201 Contacted Smart Card with Control Vault 2 0 Adv...

Страница 57: ...E5 65 W or E5 90 W Input voltage 100 V AC to 240 V AC Input current maximum 1 7 A Input frequency 50 Hz to 60 Hz Output current 3 34 A and 4 62 A Rated output voltage 19 5 V DC Weight 230 g 65 W and 320 g 90 W Dimensions 22 x 66 x 106 mm 65 W and 22 x 66 x 130 90 W Temperature range Operating 0 C to 40 C 32 F to 104 F Temperature range Non Operating 40 C to 70 C 40 F to 158 F Communications Networ...

Страница 58: ... 9 mm Starting weight 1 4 kg 3 11 lbs Environmental specifications Temperature Specifications Operating 0 C to 35 C 32 F to 95 F Storage 40 C to 65 C 40 F to 149 F Relative humidity maximum Specifications Operating 10 to 90 non condensing Storage 5 to 95 non condensing Altitude maximum Specifications Operating 0 to 3048 m 0 to 10 000 ft Non operating 5 to 95 non condensing Airborne contaminant lev...

Страница 59: ... inch Native Resolution 1366 x 768 Megapixels 1 05 Pixels per Inch PPI 112 Contrast Ratio min 300 1 Response Time max 25 msec rise fall Refresh Rate 60 Hz Horizontal View Angle min 40 degrees Vertical View Angle min 10 30 degrees Pixel Pitch 0 2265 mm Power Consumption maximum 2 8 W Table 6 14 0 inches 16 9 AG FHD 1920 x 1080 300 nits eDP 1 3 w PSR IPS HD CAM Mic WLAN capable Mag Alloy back Non To...

Страница 60: ...st Ratio min 1000 1 Response Time max 35 msec black to white Refresh Rate 60 Hz Horizontal View Angle min 80 degrees Vertical View Angle min 80 degrees Pixel Pitch 0 161 x 0 161 mm Power Consumption maximum 3 8 W Table 8 14 0 inches 16 9 AG FHD 1920 x 1080 300 nits eDP 1 3 w PSR IPS Mic only WLAN capable Mag Alloy back Non Touch Feature Specification Type FHD Anti Glare Luminance typical 300 nits ...

Страница 61: ...0 14 0 inches 16 9 AG FHD 1920 x 1080 300 nits eDP 1 3 w PSR IPS Super Low Power Panel SLP IR CAM Mic WLAN w ASA Narrow Border Mag Alloy back Non Touch Feature Specification Type FHD Anti Glare Luminance typical 300 nits Dimensions Active Area Height 173 95 mm maximum without metal tabs Width 309 4 mm maximum Diagonal 14 0 inch Native Resolution 1920 x 1080 Megapixels 2 07 Pixels per Inch PPI 157 ...

Страница 62: ...w Border Carbon Fiber back On cell Touch Feature Specification Type FHD Anti Glare Luminance typical 300 nits Dimensions Active Area Height 173 95 mm maximum Width 309 4 mm maximum Diagonal 14 0 inch Native Resolution 1920 x 1080 Megapixels 2 07 Pixels per Inch PPI 157 Contrast Ratio min 600 1 Response Time max 35 msec black to white Refresh Rate 60 Hz Horizontal View Angle min 80 degrees Vertical...

Страница 63: ...iew Angle min 80 degrees Pixel Pitch 0 161 x 0 161 mm Power Consumption maximum 4 1 W Hot key combinations Table 14 Hot key combinations Function key combination Latitude 7490 Fn ESC Fn Toggle Fn F1 Speaker Mute Fn F2 Volume Down Fn F3 Volume Up Fn F4 Mic Mute Fn F5 Num Lock Fn F6 Scroll Lock Fn F8 Display Toggle Win P Fn F9 Search Fn F10 Increase keyboard back light brightness Fn F11 Decrease dis...

Страница 64: ...ns screen options Performance screen options Power management screen options POST behavior screen options Manageability Virtualization support screen options Wireless screen options Maintenance screen options System logs screen options Admin and System password Updating the BIOS System and setup password Clearing CMOS settings Clearing BIOS System Setup and System passwords BIOS overview The BIOS ...

Страница 65: ...on The one time boot menu displays the devices that you can boot from including the diagnostic option The boot menu options are Removable Drive if available STXXXX Drive if available NOTE XXX denotes the SATA drive number Optical Drive if available SATA Hard Drive if available Diagnostics The boot sequence screen also displays the option to access the System Setup screen System setup options NOTE ...

Страница 66: ...ou the legacy option ROMs to load By default the Enable Legacy Option ROMs is disabled Enable Attempt Legacy Boot is disabled by default UEFI boot path security Always except internal HDD Always 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 Disabl...

Страница 67: ... or disables the integrated audio controller By default the Enable Audio option is selected The options are Enable Microphone by default enable Enable Internal Speaker by default enable Keyboard Illumination This field lets you choose the operating mode of the keyboard illumination feature The keyboard brightness level can be set from 0 to 100 The options are Disabled Dim Bright enabled by default...

Страница 68: ...assword 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 NOTE Successful password changes take effect immediately Default setting Not set Strong Passw...

Страница 69: ...nabled by default Key storage enable enabled by default SHA 256 enabled by default Disabled Enabled enabled by default NOTE To upgrade or downgrade TPM 2 0 download the TPM wrapper tool software Computrace Allows you to activate or disable the optional Computrace software The options are Deactivate Disable Activate enabled by default NOTE The Activate and Disable options will permanently activate ...

Страница 70: ...efault settings Intel software guard extensions screen options Option Description Intel SGX Enable This field specifies you to provide a secured environment for running code storing sensitive information in the context of the main OS The options are Disabled Enabled Software Controlled Default setting Software Controlled Enclave Memory Size This option sets SGX Enclave Reserve Memory Size The opti...

Страница 71: ...e Intel Speed Shift Technology is enabled Auto On Time Allows you to set the time at which the computer must turn on automatically The options are Disabled Every Day Weekdays Select Days Default setting Disabled USB Wake Support Allows you to enable USB devices to wake the system from Standby NOTE This feature is only functional when the AC power adapter is connected If the AC power adapter is rem...

Страница 72: ...andard rate ExpressCharge The battery charges over a shorter time using Dell s fast charging technology This option is enabled by default Primarily AC use Custom If Custom Charge is selected you can also configure Custom Charge Start and Custom Charge Stop NOTE All charging mode may not be available for all the batteries To enable this option disable the Advanced Battery Charge Configuration optio...

Страница 73: ...scription USB provision Enable USB provision is not selected by default MEBX Hotkey enabled by default Allows you to specify whether the MEBx Hotkey function should enable during the system boot Disabled Enabled Default setting Enabled Virtualization support screen options Option Description Virtualization This field specifies whether a virtual Machine Monitor VMM can utilize the conditional hardw...

Страница 74: ...is not set by default BIOS Downgrade This controls flashing of the system firmware to previous revisions Option Allow BIOS downgrade is enabled by default Data Wipe This field allows users to erase the data securely from all internal storage devices Option Wipe on Next boot is not enabled by default The following is list of devices affected Internal SATA HDD SSD Internal M 2 SATA SDD Internal M 2 ...

Страница 75: ... not allowed Only the following special characters are allowed space 3 Type the system password that you entered earlier in the Confirm new password field and click OK 4 Press Esc and a message prompts you to save the changes 5 Press Y to save the changes The computer reboots Deleting or changing an existing system setup password Ensure that the Password Status is Unlocked in the System Setup befo...

Страница 76: ...n screen instructions For more information see knowledge base article 000124211 at www dell com support Updating the BIOS in Linux and Ubuntu To update the system BIOS on a computer that is installed with Linux or Ubuntu see the knowledge base article 000131486 at www dell com support Updating the BIOS using the USB drive in Windows CAUTION If BitLocker is not suspended before updating the BIOS th...

Страница 77: ...le system key does not have to be bootable BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive AC power adapter that is connected to the computer Functional computer battery to flash the BIOS Perform the following steps to perform the BIOS update flash process from the F12 menu CAUTION Do not turn off the computer during the BIOS update pr...

Страница 78: ...System and or Setup password You cannot delete or change an existing System or Setup password if the Password Status is Locked To enter the System Setup press F12 immediately after a power on or reboot 1 In the System BIOS or System Setup screen select System Security and press Enter The System Security screen is displayed 2 In the System Security screen verify that Password Status is Unlocked 3 S...

Страница 79: ...r the system or BIOS passwords contact Dell technical support as described at www dell com contactdell NOTE For information on how to reset Windows or application passwords refer to the documentation accompanying Windows or your application System setup 79 ...

Страница 80: ...wnloading Windows drivers 1 Turn on the notebook 2 Go to Dell com support 3 Click Product Support enter the Service Tag of your notebook and then click Submit NOTE If you do not have the Service Tag use the auto detect feature or manually browse for your notebook model 4 Click Drivers and Downloads 5 Select the operating system installed on your notebook 6 Scroll down the page and select the drive...

Страница 81: ...Software 81 ...

Страница 82: ...Video driver Verify if the video driver is already installed in the system Audio driver Verify if audio drivers is already installed in the system 82 Software ...

Страница 83: ...SB driver Verify if the USB drivers are already installed in the system Storage driver Verify if the storage controller drivers are installed in the system Other drivers This section lists driver details for all the other components in the Device Manager Security device driver Verify if the security device driver is installed in the system Software 83 ...

Страница 84: ...t device driver is installed in the system Proximity device Verify if the proximity device driver is installed in the system Smart card reader Verify if the smart card reader drivers are installed in the system Biometric device Verify if the Biometric device driver is installed in the system 84 Software ...

Страница 85: ...Image device driver Verify if the image device driver is installed in the system Software 85 ...

Страница 86: ...m To discharge the battery unplug the AC adapter from the system and operate the system only on battery power When the system will no longer power on when the power button is pressed the battery is fully discharged Do not crush drop mutilate or penetrate the battery with foreign objects Do not expose the battery to high temperatures or disassemble battery packs and cells Do not apply pressure to t...

Страница 87: ...lem with the system board 3 If there is a failure with the system board the battery status LED will flash one of the following error codes for 30 seconds Table 18 LED error codes Blinking Pattern Possible Problem Amber White 2 1 CPU Failure 2 8 LCD Power Rail Failure 1 1 TPM Detection Failure 2 4 Unrecoverable SPI Failure 4 If there is no failure with the system board the LCD will cycle through th...

Страница 88: ...ter LCD built in self test BIST mode Continue to hold the D key until the system boots up 5 The screen will display solid colors and change colors on the entire screen to white black red green and blue twice 6 Then it will display the colors white black and red 7 Carefully inspect the screen for abnormalities any lines fuzzy color or distortion on the screen 8 At the end of the last solid color re...

Страница 89: ...e the system board 3 1 CMOS battery failure Reset the main battery connection If problem persists replace the main battery 3 2 PCI or Video card chip failure Replace the system board 3 3 BIOS Recovery image not found Flash latest BIOS version If problem persists replace the system board 3 4 BIOS Recovery image found but invalid Flash latest BIOS version If problem persists replace the system board...

Страница 90: ...shoot and fix your computer when it fails to boot into their primary operating system due to software or hardware failures For more information about the Dell SupportAssist OS Recovery see Dell SupportAssist OS Recovery User s Guide at www dell com serviceabilitytools Click SupportAssist and then click SupportAssist OS Recovery Real Time Clock reset The Real Time Clock RTC reset function allows yo...

Страница 91: ...m hard reset Flea power is the residual static electricity that remains in the computer even after it has been powered off and the battery is removed For your safety and to protect the sensitive electronic components in your computer you are requested to drain residual flea power before removing or replacing any components in your computer Draining residual flea power also known as a performing a ...

Страница 92: ... Service Tag or Express Service Code at www dell com support For more information on how to find the Service Tag for your computer see Locate the Service Tag on your computer Dell knowledge base articles for a variety of computer concerns 1 Go to www dell com support 2 On the menu bar at the top of the Support page select Support Knowledge Base 3 In the Search field on the Knowledge Base page type...

Результаты поиска

Содержание Latitude 7490

Отзывы:

Похожие инструкции для Latitude 7490

Бренды по названию

Популярные бренды

Dell Latitude 7490, Руководство пользователя

Результаты поиска

Содержание Latitude 7490

Отзывы:

Похожие инструкции для Latitude 7490

Бренды по названию

Популярные бренды