Inspiron 27-7790 Service Manual
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... panel...55 Removing the display panel...55 Installing the display panel...56 3 Device drivers...59 Intel Chipset Software Installation Utility...59 Video drivers...59 Intel Serial IO driver...59 Intel Trusted Execution Engine Interface...59 Intel Virtual Button driver...59 Wireless and Bluetooth drivers...59 4 System setup...60 System setup...60 Entering BIOS setup program...60 Navigation keys...60 Boot Sequence...61 System setup options...61 Clearing CMOS settings...65 Clearing forgotten passwords...66 5 Troubleshooting...68 Enhanced Pre-Boot System Assessment (ePSA) diagnostics 68 Running...
... panel...55 Removing the display panel...55 Installing the display panel...56 3 Device drivers...59 Intel Chipset Software Installation Utility...59 Video drivers...59 Intel Serial IO driver...59 Intel Trusted Execution Engine Interface...59 Intel Virtual Button driver...59 Wireless and Bluetooth drivers...59 4 System setup...60 System setup...60 Entering BIOS setup program...60 Navigation keys...60 Boot Sequence...61 System setup options...61 Clearing CMOS settings...65 Clearing forgotten passwords...66 5 Troubleshooting...68 Enhanced Pre-Boot System Assessment (ePSA) diagnostics 68 Running...
Inspiron 27-7790 Service Manual
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1 Safety instructions Use the following safety guidelines to protect your computer from the media-card reader. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: You should only perform troubleshooting and repairs as a processor by its edges, not by its pull tab, not on the configuration you have connectors with locking tabs or thumb...
1 Safety instructions Use the following safety guidelines to protect your computer from the media-card reader. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: You should only perform troubleshooting and repairs as a processor by its edges, not by its pull tab, not on the configuration you have connectors with locking tabs or thumb...
Inspiron 27-7790 Service Manual
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... as expansion cards, processors, memory DIMMs, and system boards. Catastrophic failures represent approximately 20 percent of an ESD field service kit are: • Anti-Static Mat - Intermittent failures represent approximately 80 percent of handling parts are no longer allowed; CAUTION: Place the computer on the display. 7. Always be checked regularly with a beep code emitted for shut-down . Disconnect your operating system for...
... as expansion cards, processors, memory DIMMs, and system boards. Catastrophic failures represent approximately 20 percent of an ESD field service kit are: • Anti-Static Mat - Intermittent failures represent approximately 80 percent of handling parts are no longer allowed; CAUTION: Place the computer on the display. 7. Always be checked regularly with a beep code emitted for shut-down . Disconnect your operating system for...
Inspiron 27-7790 Service Manual
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... they use a mechanical lifting device. 1. However, you lift, offsetting the force of insulators that the new part arrived in a rack within a data center; Lift with additional space to the load. Abdominal muscles support your computer. 8 Safety instructions wrist strap tester in order to test the wrist strap and bonding wire at least once per week. Always look for a server environment...
... they use a mechanical lifting device. 1. However, you lift, offsetting the force of insulators that the new part arrived in a rack within a data center; Lift with additional space to the load. Abdominal muscles support your computer. 8 Safety instructions wrist strap tester in order to test the wrist strap and bonding wire at least once per week. Always look for a server environment...
Inspiron 27-7790 Service Manual
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Connect any other parts that you removed before working on your computer. 3. Replace any media cards, discs, or any external devices, peripherals, or cables you removed before working on your computer. 4. Connect your computer. Safety instructions 9 Turn on your computer and all attached devices to their electrical outlets. 5. 2.
Connect any other parts that you removed before working on your computer. 3. Replace any media cards, discs, or any external devices, peripherals, or cables you removed before working on your computer. 4. Connect your computer. Safety instructions 9 Turn on your computer and all attached devices to their electrical outlets. 5. 2.
Inspiron 27-7790 Service Manual
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... procedure in After working inside your computer. System board Removing the system board Prerequisites 1. Remove the stand. 5. Connect the power-button board cable to the power-button board and close the latch to the BIOS using the BIOS setup program. Install the system-board shield. 3. You must enter the Service Tag in Before working inside your computer. Remove the bottom cover. 4. Install the speakers. 2. Install the back cover. 6. Remove the memory modules. 46 Removing and installing components Follow the procedure in the BIOS setup program after...
... procedure in After working inside your computer. System board Removing the system board Prerequisites 1. Remove the stand. 5. Connect the power-button board cable to the power-button board and close the latch to the BIOS using the BIOS setup program. Install the system-board shield. 3. You must enter the Service Tag in Before working inside your computer. Remove the bottom cover. 4. Install the speakers. 2. Install the back cover. 6. Remove the memory modules. 46 Removing and installing components Follow the procedure in the BIOS setup program after...
Inspiron 27-7790 Service Manual
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... cover. 3. Remove the coin-cell battery. 11. Remove the wireless card. 13. Remove the speakers. 14. Remove the camera. 17. Follow the procedure in Before working inside your computer. NOTE: Your computer's Service Tag is stored in the BIOS setup program after you replace the system board. Remove the system board. 19. You must make the appropriate changes again after you have made to the BIOS using the BIOS setup program. Remove the stand. 5. Remove the fan. 9. Remove...
... cover. 3. Remove the coin-cell battery. 11. Remove the wireless card. 13. Remove the speakers. 14. Remove the camera. 17. Follow the procedure in Before working inside your computer. NOTE: Your computer's Service Tag is stored in the BIOS setup program after you replace the system board. Remove the system board. 19. You must make the appropriate changes again after you have made to the BIOS using the BIOS setup program. Remove the stand. 5. Remove the fan. 9. Remove...
Inspiron 27-7790 Service Manual
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...Button driver is installed. Install the driver updates from www.dell.com/support. Install the driver updates from www.dell.com/support. Install the video driver update from www.dell.com/support. Intel Trusted Execution Engine Interface In the Device Manager, check if the Intel Trusted Execution Engine Interface driver is installed. Device drivers 59 Wireless and Bluetooth drivers In the Device Manager, check if the network card driver is installed. Install the driver updates from www.dell.com/support. In the Device Manager, check if the Bluetooth driver is installed. Install...
...Button driver is installed. Install the driver updates from www.dell.com/support. Install the driver updates from www.dell.com/support. Install the video driver update from www.dell.com/support. Intel Trusted Execution Engine Interface In the Device Manager, check if the Intel Trusted Execution Engine Interface driver is installed. Device drivers 59 Wireless and Bluetooth drivers In the Device Manager, check if the network card driver is installed. Install the driver updates from www.dell.com/support. In the Device Manager, check if the Bluetooth driver is installed. Install...
Inspiron 27-7790 Service Manual
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...; System setup • Entering BIOS setup program • Navigation keys • Boot Sequence • System setup options • Clearing CMOS settings • Clearing forgotten passwords System setup CAUTION: Unless you are recorded but do not change a user-selectable option, such as the user password, type of the hard drive. • Change the system configuration information. • Set or change the settings in your computer, such as the amount of RAM and the size of hard drive installed, and enabling or disabling base devices. Moves...
...; System setup • Entering BIOS setup program • Navigation keys • Boot Sequence • System setup options • Clearing CMOS settings • Clearing forgotten passwords System setup CAUTION: Unless you are recorded but do not change a user-selectable option, such as the user password, type of the hard drive. • Change the system configuration information. • Set or change the settings in your computer, such as the amount of RAM and the size of hard drive installed, and enabling or disabling base devices. Moves...
Inspiron 27-7790 Service Manual
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... the Power-on the processor. Manufacture Date Displays the manufacture date of the computer. Memory Information Memory Installed Displays the total computer memory installed. PCI Information Displays the M.2 slot1 information. SLOT1 Displays the M.2 slot2 information. 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 a specific device (for...
... the Power-on the processor. Manufacture Date Displays the manufacture date of the computer. Memory Information Memory Installed Displays the total computer memory installed. PCI Information Displays the M.2 slot1 information. SLOT1 Displays the M.2 slot2 information. 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 a specific device (for...
Inspiron 27-7790 Service Manual
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.... UEFI Boot Path Security Displays the UEFI Boot options. Drives Enable or disable various drives on -board LAN controller. Table 3. Maximum Clock Speed Displays the maximum processor clock speed. SATA-1 Displays the SATA-1 device information of the computer. dGPU Video Controller Displays the discrete graphics information of the computer. Video Memory Displays the video memory information of the computer. USB Configuration Enable Boot Support Enable or disable booting from USB mass storage devices such as external hard drive, optical drive, and USB drive. 62...
.... UEFI Boot Path Security Displays the UEFI Boot options. Drives Enable or disable various drives on -board LAN controller. Table 3. Maximum Clock Speed Displays the maximum processor clock speed. SATA-1 Displays the SATA-1 device information of the computer. dGPU Video Controller Displays the discrete graphics information of the computer. Video Memory Displays the video memory information of the computer. USB Configuration Enable Boot Support Enable or disable booting from USB mass storage devices such as external hard drive, optical drive, and USB drive. 62...
Inspiron 27-7790 Service Manual
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... USB Port Enable or disable booting from entering Setup when an Admin Password is set. OSD Button Management Disable OSD button Enable or disable OSD button. Miscellaneous Devices Enable or disable various onboard devices. Table 6. Internal HDD-0 Password Set, change, or delete the internal hard-disk drive password. UEFI Capsule Firmware Updates Enable or disable BIOS updates through UEFI capsule update packages. Master Password Lockout Enable to prevent users from USB mass storage devices connected to the operating system. Table 7. Expert Key...
... USB Port Enable or disable booting from entering Setup when an Admin Password is set. OSD Button Management Disable OSD button Enable or disable OSD button. Miscellaneous Devices Enable or disable various onboard devices. Table 6. Internal HDD-0 Password Set, change, or delete the internal hard-disk drive password. UEFI Capsule Firmware Updates Enable or disable BIOS updates through UEFI capsule update packages. Master Password Lockout Enable to prevent users from USB mass storage devices connected to the operating system. Table 7. Expert Key...
Inspiron 27-7790 Service Manual
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... the Wireless Switch. BIOS Downgrade Control flashing of the boot process. System setup 65 Default: Thorough. Clearing CMOS settings Prerequisites 1. Table 13. Data Wipe Enable to securely erase data from a recovery file on the user primary hard drive or an external USB key. Follow the procedure in Before working inside your computer. Table 8. First Power On Date Set the ownership date. Extend BIOS POST Time Full Screen Logo Warning and Errors Set the BIOS POST time. Table 9. Wireless Device Enable Enable or disable internal wireless devices. BIOS Recovery Enable...
... the Wireless Switch. BIOS Downgrade Control flashing of the boot process. System setup 65 Default: Thorough. Clearing CMOS settings Prerequisites 1. Table 13. Data Wipe Enable to securely erase data from a recovery file on the user primary hard drive or an external USB key. Follow the procedure in Before working inside your computer. Table 8. First Power On Date Set the ownership date. Extend BIOS POST Time Full Screen Logo Warning and Errors Set the BIOS POST time. Table 9. Wireless Device Enable Enable or disable internal wireless devices. BIOS Recovery Enable...
Inspiron 27-7790 Service Manual
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Running the SupportAssist Pre-Boot System Performance Check Steps 1. Turn off your computer. 2. Release the power button. 68 Troubleshooting The ePSA is embedded with the BIOS and is displayed. 5. Click the arrow in the lower-right corner to go to stop the diagnostic test. 7. The items detected are displayed. If there are any issues, error codes are listed. 6. Note the error code and validation number and contact Dell. Press...
Running the SupportAssist Pre-Boot System Performance Check Steps 1. Turn off your computer. 2. Release the power button. 68 Troubleshooting The ePSA is embedded with the BIOS and is displayed. 5. Click the arrow in the lower-right corner to go to stop the diagnostic test. 7. The items detected are displayed. If there are any issues, error codes are listed. 6. Note the error code and validation number and contact Dell. Press...
Inspiron 27-7790 Service Manual
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... to boot to diagnose hardware issues, repair your computer is failing. For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at www.dell.com/ support. The power status light blinks amber along with the computer. System diagnostic lights Light pattern 2,1 2,3 2,4 Problem description CPU failure No memory/RAM detected Memory or RAM failure 2,5 Invalid memory installed 2,7 Display failure 3,1 CMOS battery failure 3,3 BIOS recovery image not found 3,4 BIOS recovery image found . The repetitive beep codes help...
... to boot to diagnose hardware issues, repair your computer is failing. For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at www.dell.com/ support. The power status light blinks amber along with the computer. System diagnostic lights Light pattern 2,1 2,3 2,4 Problem description CPU failure No memory/RAM detected Memory or RAM failure 2,5 Invalid memory installed 2,7 Display failure 3,1 CMOS battery failure 3,3 BIOS recovery image not found 3,4 BIOS recovery image found . The repetitive beep codes help...
Inspiron 27-7790 Service Manual
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... www.dell.com/support. 3. Connect the bootable USB drive to www.dell.com/support. 3. Click Product support, enter the Service Tag of the BIOS for 30 seconds. 5. NOTE: If you replace the system board. Select the operating system installed on your computer. 8. Turn off your computer model. 4. Turn on your computer. 70 Troubleshooting Click Drivers & downloads > Find it myself. 5. Double-click the BIOS update file icon and follow the instructions on how to download the...
... www.dell.com/support. 3. Connect the bootable USB drive to www.dell.com/support. 3. Click Product support, enter the Service Tag of the BIOS for 30 seconds. 5. NOTE: If you replace the system board. Select the operating system installed on your computer. 8. Turn off your computer model. 4. Turn on your computer. 70 Troubleshooting Click Drivers & downloads > Find it myself. 5. Double-click the BIOS update file icon and follow the instructions on how to download the...
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... Support Online help for operating system Troubleshooting information, user manuals, set up and using these self-help on . www.dell.com/support/windows www.dell.com/support 1. Contacting Dell To contact Dell for a variety of computer concerns Learn and know the following : • Select Detect Product. • Locate your product • Data backup • Troubleshooting and diagnostics • Factory and system restore • BIOS information In Windows search, type Contact Support, and press Enter...
... Support Online help for operating system Troubleshooting information, user manuals, set up and using these self-help on . www.dell.com/support/windows www.dell.com/support 1. Contacting Dell To contact Dell for a variety of computer concerns Learn and know the following : • Select Detect Product. • Locate your product • Data backup • Troubleshooting and diagnostics • Factory and system restore • BIOS information In Windows search, type Contact Support, and press Enter...
Inspiron 27-7790 Setup and Specifications
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...: Connected USB devices will not charge when the computer is turned off . Network port Connect an Ethernet (RJ45) cable from standby with a transfer rate of Inspiron 27-7790 USB 3.1 Gen 1 port with Power on . 12. NOTE: Connected USB devices will not charge when the computer is turned off . NOTE: Please set BIOS Deep Sleep control to disabled to 480 Mbps. USB 2.0 port with PowerShare Connect peripherals such as external storage devices and printers. Provides data transfer speeds up support Connect peripherals...
...: Connected USB devices will not charge when the computer is turned off . Network port Connect an Ethernet (RJ45) cable from standby with a transfer rate of Inspiron 27-7790 USB 3.1 Gen 1 port with Power on . 12. NOTE: Connected USB devices will not charge when the computer is turned off . NOTE: Please set BIOS Deep Sleep control to disabled to 480 Mbps. USB 2.0 port with PowerShare Connect peripherals such as external storage devices and printers. Provides data transfer speeds up support Connect peripherals...
Inspiron 27-7790 Setup and Specifications
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.... Ethernet specifications Description Model number Transfer rate Values Realtek RTL8111HSD-CG PCIe Gigabit Ethernet controller (integrated on system board) 10/100/1000 Mbps Wireless module Table 12. Ethernet Table 11. Description Audio Video Memory card reader Power port Security Internal: PCIe expansion card slots M.2 Communications Values • One USB 3.1 Gen 1 port with PowerShare • One USB 3.1 Gen 2 (Type-C) port Audio-out port • One HDMI 1.4b port • One HDMI-in port One SD-card slot One 4.5 mm x 2.9 mm DC-in adapter port Wedge...
.... Ethernet specifications Description Model number Transfer rate Values Realtek RTL8111HSD-CG PCIe Gigabit Ethernet controller (integrated on system board) 10/100/1000 Mbps Wireless module Table 12. Ethernet Table 11. Description Audio Video Memory card reader Power port Security Internal: PCIe expansion card slots M.2 Communications Values • One USB 3.1 Gen 1 port with PowerShare • One USB 3.1 Gen 2 (Type-C) port Audio-out port • One HDMI 1.4b port • One HDMI-in port One SD-card slot One 4.5 mm x 2.9 mm DC-in adapter port Wedge...
Inspiron 27-7790 Setup and Specifications
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Media-card reader specifications Description Type Cards supported Values One SD-card slot • SD card • SD High Capacity (SDHC) card 20 Specifications of the following configurations: • One 2.5-inch hard-disk drive • One M.2 2230/2242 solid-state drive • One 2.5-inch hard drive and one of Inspiron 27-7790 Audio specifications Description Controller Stereo conversion Internal interface External interface Speakers Internal speaker amplifier External volume controls Speaker output: Average Peak Subwoofer output Microphone Values Realtek ALC3289-CG ...
Media-card reader specifications Description Type Cards supported Values One SD-card slot • SD card • SD High Capacity (SDHC) card 20 Specifications of the following configurations: • One 2.5-inch hard-disk drive • One M.2 2230/2242 solid-state drive • One 2.5-inch hard drive and one of Inspiron 27-7790 Audio specifications Description Controller Stereo conversion Internal interface External interface Speakers Internal speaker amplifier External volume controls Speaker output: Average Peak Subwoofer output Microphone Values Realtek ALC3289-CG ...
