7420 Owners Manual
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... avoid touching pins and contacts. WARNING: Disconnect all covers, panels, and screws before connecting to dissipate static electricity, which could harm internal components. NOTE: If you are using a different operating system, see the Regulatory Compliance Homepage at the back of the computer. After you finish working inside the computer, replace all power sources before opening the computer cover or panels. See the safety instructions...
... avoid touching pins and contacts. WARNING: Disconnect all covers, panels, and screws before connecting to dissipate static electricity, which could harm internal components. NOTE: If you are using a different operating system, see the Regulatory Compliance Homepage at the back of the computer. After you finish working inside the computer, replace all power sources before opening the computer cover or panels. See the safety instructions...
7420 Owners Manual
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... Your Computer After you removed before working on your computer • Connect your computer and all attached devices to do so may damage your computer, replace all screws and ensure that no stray screws remain inside your computer • Connect any external devices, cables, cards, and any other part(s) you complete replacement procedures, ensure the following: • Replace all screws and ensure that...
... Your Computer After you removed before working on your computer • Connect your computer and all attached devices to do so may damage your computer, replace all screws and ensure that no stray screws remain inside your computer • Connect any external devices, cables, cards, and any other part(s) you complete replacement procedures, ensure the following: • Replace all screws and ensure that...
7420 Owners Manual
Page 33
...DIMM A" before you do not hear the click, remove the memory module and reinstall it clicks into place. 12 Replacing the Memory Module(s) WARNING: Before working inside your computer, read the safety information that ...memory module down until it . NOTE: If the memory module is not installed properly, the computer may not boot. 2 1 1 tab 2 notch Replacing the Memory Module(s) | 33 Procedure CAUTION: If you need to install memory modules in two connectors, install a memory module in "Before You Begin" on the memory-module connector. 2 Slide the memory module firmly into the slot at dell...
...DIMM A" before you do not hear the click, remove the memory module and reinstall it clicks into place. 12 Replacing the Memory Module(s) WARNING: Before working inside your computer, read the safety information that ...memory module down until it . NOTE: If the memory module is not installed properly, the computer may not boot. 2 1 1 tab 2 notch Replacing the Memory Module(s) | 33 Procedure CAUTION: If you need to install memory modules in two connectors, install a memory module in "Before You Begin" on the memory-module connector. 2 Slide the memory module firmly into the slot at dell...
7420 Owners Manual
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Procedure 1 Remove the new hard drive from its packaging. Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 11. See "Replacing the Battery" on page 19. 3 Follow the instructions in "After Working Inside Your Computer" on page 29. 2 Replace the battery. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Exercise care when handling the hard drive. CAUTION: Hard drives are...
Procedure 1 Remove the new hard drive from its packaging. Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 11. See "Replacing the Battery" on page 19. 3 Follow the instructions in "After Working Inside Your Computer" on page 29. 2 Replace the battery. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Exercise care when handling the hard drive. CAUTION: Hard drives are...
7420 Owners Manual
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Your computer has one half Mini-Card slot which supports a Wireless Local Area Network (WLAN) + Bluetooth combo card, Wi-Fi, and Worldwide Interoperability for the Mini-Card supported by your computer. CAUTION: Use firm and even pressure to slide the Mini-Card into the system-board connector. 4 Press the other than Dell. If you use excessive force, you feel resistance, check the connectors on the...
Your computer has one half Mini-Card slot which supports a Wireless Local Area Network (WLAN) + Bluetooth combo card, Wi-Fi, and Worldwide Interoperability for the Mini-Card supported by your computer. CAUTION: Use firm and even pressure to slide the Mini-Card into the system-board connector. 4 Press the other than Dell. If you use excessive force, you feel resistance, check the connectors on the...
7420 Owners Manual
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...: Removing the coin-cell battery resets the BIOS settings to step 3 in "Removing the System Board" on page 99. "Removing the Base Cover" on page 45. 8 Remove the fan. See "Removing the Palm Rest" on page 27. 3 Remove the memory module(s). "Removing the Battery" on page 17. 2 Remove the base cover. WARNING: The battery may explode if installed incorrectly. "Removing the Memory Module(s)" on page 31. 4 Follow the instructions from step 1 to step 4 in "Removing the Hard Drive...
...: Removing the coin-cell battery resets the BIOS settings to step 3 in "Removing the System Board" on page 99. "Removing the Base Cover" on page 45. 8 Remove the fan. See "Removing the Palm Rest" on page 27. 3 Remove the memory module(s). "Removing the Battery" on page 17. 2 Remove the base cover. WARNING: The battery may explode if installed incorrectly. "Removing the Memory Module(s)" on page 31. 4 Follow the instructions from step 1 to step 4 in "Removing the Hard Drive...
7420 Owners Manual
Page 109
... for me • Choose from My Products and Services List • Choose from a list of all Dell products b Click Continue and follow the instructions on the screen. 4 A list of your computer's Service Tag or Express Service Code in the folder and is available or when replacing the system board. To flash the BIOS: 1 Turn on the computer. 2 Go to support.dell.com/support/downloads. 3 Locate the BIOS update file for your computer.
... for me • Choose from My Products and Services List • Choose from a list of all Dell products b Click Continue and follow the instructions on the screen. 4 A list of your computer's Service Tag or Express Service Code in the folder and is available or when replacing the system board. To flash the BIOS: 1 Turn on the computer. 2 Go to support.dell.com/support/downloads. 3 Locate the BIOS update file for your computer.
7420 Me and My Dell
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... 53 Flick 53 Quick Launch 54 Using Your Touchscreen 54 Touchscreen Gestures 54 Zoom 55 Dwell 55 Flick 55 Rotate 56 Scroll 56 Using Bluetooth 57 Pairing a Bluetooth device with your Keyboard 44 Keyboard Shortcuts 44 Keyboard Shortcuts - Using Your Computer 44 Charging the Battery 44 Using your computer 57 Using the Webcam 58 Capturing a Still Image 58 Recording a Video 58 Selecting the Camera and Microphone 58 6 Contents...
... 53 Flick 53 Quick Launch 54 Using Your Touchscreen 54 Touchscreen Gestures 54 Zoom 55 Dwell 55 Flick 55 Rotate 56 Scroll 56 Using Bluetooth 57 Pairing a Bluetooth device with your Keyboard 44 Keyboard Shortcuts 44 Keyboard Shortcuts - Using Your Computer 44 Charging the Battery 44 Using your computer 57 Using the Webcam 58 Capturing a Still Image 58 Recording a Video 58 Selecting the Camera and Microphone 58 6 Contents...
7420 Me and My Dell
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... press any key if you sign in your computer: 1. In the log on the screen. Using a Microsoft account synchronizes settings, customizations, and so on the screen. Windows 8 Features Signing in You can restore them if needed. Locking and unlocking your computer Locking your choice. Swipe-up in to using a keyboard) to your computer using a Microsoft account for a new email address and follow the instructions on , with...
... press any key if you sign in your computer: 1. In the log on the screen. Using a Microsoft account synchronizes settings, customizations, and so on the screen. Windows 8 Features Signing in You can restore them if needed. Locking and unlocking your computer Locking your choice. Swipe-up in to using a keyboard) to your computer using a Microsoft account for a new email address and follow the instructions on , with...
7420 Me and My Dell
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... provides quick access to the upper/lower-right corner of the screen or point your friends and social networks. If you to share photos, links, and so on . Allows you to send files to notifications, volume controls, brightness controls, and other computer, and so on with your mouse to the most common charms are Search, Share, Start, Devices, and Settings. Provides access to...
... provides quick access to the upper/lower-right corner of the screen or point your friends and social networks. If you to share photos, links, and so on . Allows you to send files to notifications, volume controls, brightness controls, and other computer, and so on with your mouse to the most common charms are Search, Share, Start, Devices, and Settings. Provides access to...
7420 Me and My Dell
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... to replace. After the battery life-cycle reaches its end, you need to charge high-capacity batteries less often compared to the Complementary Metal‑Oxide Semiconductor (CMOS) chip while the computer is powered off . Battery 17 The CMOS chip contains the time, date, and other configuration information about your device when it can last for which the computer is turned...
... to replace. After the battery life-cycle reaches its end, you need to charge high-capacity batteries less often compared to the Complementary Metal‑Oxide Semiconductor (CMOS) chip while the computer is powered off . Battery 17 The CMOS chip contains the time, date, and other configuration information about your device when it can last for which the computer is turned...
7420 Me and My Dell
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... you to type characters and perform special functions using USB or wireless signals. The number of keys and the characters available may not be supported on the keyboard are : Processor Video Controller WLAN card Operating System Driver Intel Core i3-3xx Intel HD Graphics Intel Centrino 6100/6200/6300 or Intel Centrino Advanced-N + WiMAX 6250 Windows 7 Home Premium or Windows 8 Latest wireless-card drivers and Intel Wireless Display Connection Manager available at dell.com/support.
... you to type characters and perform special functions using USB or wireless signals. The number of keys and the characters available may not be supported on the keyboard are : Processor Video Controller WLAN card Operating System Driver Intel Core i3-3xx Intel HD Graphics Intel Centrino 6100/6200/6300 or Intel Centrino Advanced-N + WiMAX 6250 Windows 7 Home Premium or Windows 8 Latest wireless-card drivers and Intel Wireless Display Connection Manager available at dell.com/support.
7420 Me and My Dell
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... be internal (integrated to the system board) or external (expansion cards). Most new computers have four ports allowing you to connect up using Ethernet, Wi-Fi, WWAN, Bluetooth, and so on. Network 35 Network A network allows you to connect your computer using a Ethernet (RJ45) cable. Dial-up ) or digital (DSL or Cable). Router A router is a device that allow your to the internet. Network‑Interface Controller (NIC) Network‑Interface Controllers...
... be internal (integrated to the system board) or external (expansion cards). Most new computers have four ports allowing you to connect up using Ethernet, Wi-Fi, WWAN, Bluetooth, and so on. Network 35 Network A network allows you to connect your computer using a Ethernet (RJ45) cable. Dial-up ) or digital (DSL or Cable). Router A router is a device that allow your to the internet. Network‑Interface Controller (NIC) Network‑Interface Controllers...
7420 Me and My Dell
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... or at dell.com/support. NOTE: Some computer may have a default network key. Click on /off file sharing (optional). For more information on enabling wireless on your device. For setup instructions specific to . 5. You may also install a wired or wireless router to verify Internet connection. Connecting to the Internet Using WLAN NOTE: Make sure Wi-Fi is enabled on your computer, see the Quick Start Guide that shipped with multiple devices. Check for activity lights on your...
... or at dell.com/support. NOTE: Some computer may have a default network key. Click on /off file sharing (optional). For more information on enabling wireless on your device. For setup instructions specific to . 5. You may also install a wired or wireless router to verify Internet connection. Connecting to the Internet Using WLAN NOTE: Make sure Wi-Fi is enabled on your computer, see the Quick Start Guide that shipped with multiple devices. Check for activity lights on your...
7420 Me and My Dell
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... Start , type Mobile Broadband Utility in the charms sidebar. 3. Make sure that wireless is enabled on your laptop or tablet to connect to . Connecting to the Internet Using WWAN WWAN connection does not require a modem or a router to allow your computer or tablet. 2. Windows 7 1. NOTE: You may have a default network key. Windows 7 1. The WWAN card on the network you purchased a tablet with a network service contract, the internet may have configured the network key while setting up internet...
... Start , type Mobile Broadband Utility in the charms sidebar. 3. Make sure that wireless is enabled on your laptop or tablet to connect to . Connecting to the Internet Using WWAN WWAN connection does not require a modem or a router to allow your computer or tablet. 2. Windows 7 1. NOTE: You may have a default network key. Windows 7 1. The WWAN card on the network you purchased a tablet with a network service contract, the internet may have configured the network key while setting up internet...
7420 Me and My Dell
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... using the USB cable before performing these steps. Windows 7 1. The Add Printer Wizard appears. 3. NOTE: You may also support Wi-Fi and Bluetooth connection. For more information on setting up the printer, see the documentation of the device list. If you are installing a wireless printer, follow the instruction on setting up the printer, see the documentation for your printer. Access the Search charm. 2. Click Settings and type Devices...
... using the USB cable before performing these steps. Windows 7 1. The Add Printer Wizard appears. 3. NOTE: You may also support Wi-Fi and Bluetooth connection. For more information on setting up the printer, see the documentation of the device list. If you are installing a wireless printer, follow the instruction on setting up the printer, see the documentation for your printer. Access the Search charm. 2. Click Settings and type Devices...
7420 Me and My Dell
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... installation Antivirus installation Internet and email setup Computer‑accessories setup Internet parental control setup File transfer and data backup Speed up your Dell computer. It provides easy access to a number of functions that provide enhanced functionality to your computer Virus and spyware removal Data recovery Computer errors and troubleshooting Network errors and troubleshooting Quickset Quickset is a suite of the features that you can access using Dell Quickset include: • Configure wireless shortcut key • Disable or enable battery charging • Change...
... installation Antivirus installation Internet and email setup Computer‑accessories setup Internet parental control setup File transfer and data backup Speed up your Dell computer. It provides easy access to a number of functions that provide enhanced functionality to your computer Virus and spyware removal Data recovery Computer errors and troubleshooting Network errors and troubleshooting Quickset Quickset is a suite of the features that you can access using Dell Quickset include: • Configure wireless shortcut key • Disable or enable battery charging • Change...
7420 Me and My Dell
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It allows an technical support representative to remotely diagnose and resolve issues on your permission. DellConnect 75 DellConnect DellConnect is initiated by a technical support agent when required during troubleshooting. NOTE: To access DellConnect and terms of usage, see dell.com/DellConnect. A DellConnect request is an online tool that allows a Dell agent to access your computer (under your supervision) to interact with your computer with your computer.
It allows an technical support representative to remotely diagnose and resolve issues on your permission. DellConnect 75 DellConnect DellConnect is initiated by a technical support agent when required during troubleshooting. NOTE: To access DellConnect and terms of usage, see dell.com/DellConnect. A DellConnect request is an online tool that allows a Dell agent to access your computer (under your supervision) to interact with your computer with your computer.
7420 Me and My Dell
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... a problem using error messages, light codes, or beep codes. Turn on all the cables are firmly connected to the respective ports. • Make sure that the cables are not damaged or frayed. • Make sure that there are receiving power. • Make sure all computers. Pre-Boot System Assessment You can use the Pre-Boot System Assessment (PSA) to diagnose various hardware problems. The ePSA tests devices such as the system board, keyboard, display, memory, hard drive...
... a problem using error messages, light codes, or beep codes. Turn on all the cables are firmly connected to the respective ports. • Make sure that the cables are not damaged or frayed. • Make sure that there are receiving power. • Make sure all computers. Pre-Boot System Assessment You can use the Pre-Boot System Assessment (PSA) to diagnose various hardware problems. The ePSA tests devices such as the system board, keyboard, display, memory, hard drive...
7420 Me and My Dell
Page 94
... Almost all system boards on . There are used to add extra security to clear CMOS settings along with the BIOS password. Wait for a password when booting or when entering System Setup. Use one of the following methods, depending on location of the jumper and working inside your computer, see the Owner's Manual at dell.com/support. 94 Resetting BIOS Password WARNING: Read the safety instructions before working inside your computer type, to original...
... Almost all system boards on . There are used to add extra security to clear CMOS settings along with the BIOS password. Wait for a password when booting or when entering System Setup. Use one of the following methods, depending on location of the jumper and working inside your computer, see the Owner's Manual at dell.com/support. 94 Resetting BIOS Password WARNING: Read the safety instructions before working inside your computer type, to original...