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NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Table 1. Locate Dell apps
Resources | Description |
![]() | Dell Product Registration Register your computer with Dell. |
![]() | Dell Help & Support Access help and support for your computer. |
![]() | My Dell Centralized location for key Dell applications, help articles, and other important information about your computer. It also notifies you about the warranty status, recommended accessories, and software updates if available. |
![]() | SupportAssist SupportAssist is the smart technology that keeps your computer running at its best by optimizing settings, detecting issues, removing viruses and notifies when you need to make system updates. SupportAssist proactively checks the health of your system's hardware and software. When an issue is detected, the necessary system state information is sent to Dell to begin troubleshooting. SupportAssist is preinstalled on most of the Dell devices running Windows operating system. For more information, see SupportAssist for Home PCs User's Guide on www.dell.com/serviceabilitytools. |
![]() | Dell Update Updates your computer with critical fixes and latest device drivers as they become available. For more information about using Dell Update, see the knowledge base article 000149088 at www.dell.com/support. |
![]() | Dell Digital Delivery Download software applications, which are purchased but not pre-installed on your computer. For more information about using Dell Digital Delivery, see the knowledge base article 000128904 at www.dell.com/support. |
NOTE: The power-status light on the power button is available only on computers without the fingerprint reader. Computers that are shipped with the fingerprint reader that is integrated on the power button will not have the power-status light on the power button.
NOTE: To reset the battery, press and hold the power button for 25 seconds.
Display
The maximum operating angle for the display-panel hinge is 135 degrees.
The service tag is a unique alphanumeric identifier that allows Dell service technicians to identify the hardware components in your computer and access warranty information.
The following table lists the battery charge and status light behavior of your Vostro 3420.
Table 2. Battery charge and status light behavior
Power Source | LED Behavior | System Power State | Battery Charge Level |
AC Adapter | Off | S0 - S5 | Fully Charged |
AC Adapter | Solid White | S0 - S5 | < Fully Charged |
Battery | Off | S0 - S5 | 11-100% |
Battery | Solid Amber (590+/-3 nm) | S0 - S5 | < 10% |
The following table lists the height, width, depth, and weight of your Vostro 3420.
Table 3. Dimensions and weight
Description | Values |
Height: | |
Front height |
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Rear height |
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Width |
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Depth |
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Weight |
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The following table lists the details of the processors that are supported by your Vostro 3420.
Table 4. Processor
Description | Option one | Option two | Option three | Option four | Option five | Option six | Option seven | Option eight |
Processor type | 12th Generation Intel Core i i7-1255U | 12th Generation Intel Core i5-1235U | 12th Generation Intel Core i3-1215U | 11th Generation Intel Core i7-1165G7 | 11th Generation Intel Core i5-1135G7 | 11th Generation Intel Core i3-1115G4 | 12th Generation Intel Celeron 7305 | 12th Generation Intel Pentium 8505 |
Processor wattage | 15 W | 15 W | 15 W | 15 W | 15 W | 15 W | 15 W | 15 W |
Processor core count | 10 | 10 | 6 | 4 | 4 | 2 | 5 | 5 |
Processor thread count | 12 | 12 | 8 | 8 | 8 | 4 | 5 | 6 |
Processor speed | 1.70 GHz to 4.70 GHz | 1.30 GHz to 4.40 GHz | 1.20 GHz to 4.40 GHz | 2.80 GHz to 4.70 GHz | 2.40 GHz to 4.20 GHz | 1.70 GHz to 4.10 GHz | Up to 1.10 GHz | 1.20 GHz to 4.40 GHz |
Processor cache | 12 MB | 12 MB | 10 MB | 12 MB | 8 MB | 6 MB | 8 MB | 8 MB |
Integrated graphics | Intel Iris Xe Graphics | Intel Iris Xe Graphics | Intel UHD Graphics | Intel Iris Xe Graphics | Intel Iris Xe Graphics | Intel UHD Graphics | Intel UHD Graphics | Intel UHD Graphics |
The following table lists the details of the chipset supported by your Vostro 3420
Table 5. Chipset
Description | Option one | Option two |
Processors | 11th Generation Intel Tiger Lake Processor Core i3/i5/i7 | 12th Generation Intel Alder Lake Core i3/i5/i7, Celeron and Pentium Processors |
Chipset | Intel Tiger Lake (Integrated in the processor) | Intel Alder Lake (Integrated in the processor) |
DRAM bus width | 64-bit | 64-bit |
Flash EPROM | 8 MB + 16 MB | 32 MB |
PCIe bus | Up to Gen3 | Up to Gen4 |
Your Vostro 3420 supports the following operating systems:
The following table lists the memory specifications of your Vostro 3420.
Table 6. Memory specifications
Description | Values |
Memory slots | Two-SODIMM slots |
Memory type | DDR4 |
Memory speed | 2666 Mhz/3200 MHz (with Type-C configuration) |
Maximum memory configuration | 16 GB |
Minimum memory configuration | 4 GB |
Memory size per slot | 4 GB, 8 GB, 16 GB |
Memory configurations supported |
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The following table lists the external ports of your Vostro 3420.
Table 7. External ports
Description | Values |
Network port | One Flip-Down RJ-45 Ethernet port 10/100/1000 Mbps |
USB ports |
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Audio port | One headset (headphone and microphone combo) port |
Video port | One HDMI 1.4 port |
Media-card reader | One SD-card slot |
Power-adapter port | One DC-in port (4.50 mm standard plug) |
Security-cable slot | One wedge-shaped security slot |
The following table lists the internal slots of your Vostro 3420.
Table 8. Internal slots
Description | Values |
M.2 |
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The following table lists the wired Ethernet Local Area Network (LAN) specifications of your Vostro 3420.
Table 9. Ethernet specifications
Description | Values |
Model number | Integrated Realtek RTL8111H |
Transfer rate | 10/100/1000 Mbps |
The following table lists the Wireless Local Area Network (WLAN) module specifications of your Vostro 3420.
Table 10. Wireless module specifications
Description | Option one | Option two | Option three |
Model number | Realtek RTL8821CE | Intel 9462 | Intel AX201 (optional) |
Transfer rate | Up to 433 Mbps | Up to 433 Mbps | Up to 2400 Mbps |
Frequency bands supported | 2.40 GHz/5 GHz | 2.40 GHz/5.00 GHz | 2.40 GHz/5.00 GHz |
Wireless standards |
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Encryption |
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Bluetooth wireless card | Bluetooth 5.0 | Bluetooth 5.1 | Bluetooth 5.2 |
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The following table lists the audio specifications of your Vostro 3420.
Table 11. Audio specifications
Description | Values |
Audio controller |
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Stereo conversion | Supported |
Internal audio interface | High definition audio |
External audio interface | One headset (headphone and microphone combo) port |
Number of speakers | Two |
Internal-speaker amplifier | Supported (TI-TAS5825 - with Cirrus controller) |
External volume controls | Keyboard shortcut controls |
Speaker output: | |
Average speaker output | 2 W |
Peak speaker output | 2.5 W |
Subwoofer output | Not supported |
Microphone |
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This section lists the storage options on your Vostro 3420.
Table 12. Storage specifications
Storage type | Interface type | Capacity |
M.2 2230 Class 35 solid-state drive | PCIe NVMe Gen3 x4 | Up to 1 TB |
M.2 2230 Class 35 solid-state drive | PCIe NVMe Gen4 x4 | Up to 1 TB |
M.2 2280 Class 40 solid-state drive | PCIe NVMe Gen4 x4 | Up to 2 TB |
M.2 2280 solid-state drive, QLC | PCIe NVMe Gen3 x4 | Up to 1 TB |
The following table lists the media cards supported by your Vostro 3420.
Table 13. Media-card reader specifications
Description | Values |
Media-card type | SD card |
Media-cards supported |
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The following table lists the keyboard specifications of your Vostro 3420.
Table 14. Keyboard specifications
Description | Values |
Keyboard type | Backlit keyboard |
Keyboard layout | QWERTY |
Number of keys |
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Keyboard size | X= 19.05 mm key pitch Y= 18.05 mm key pitch |
Keyboard shortcuts | Some keys on your keyboard have two symbols on them. These keys can be used to type alternate characters or to perform secondary functions. To type the alternate character, press Shift and the desired key. To perform secondary functions, press Fn and the desired key. |
The following table lists the camera specifications of your Vostro 3420.
Table 15. Camera specifications
Description | Values |
Number of cameras | One |
Camera type | There are 2 camera options:
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Camera location | Front camera |
Camera sensor type | CMOS sensor technology |
Camera resolution: | |
Still image |
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Video |
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Diagonal viewing angle: |
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The following table lists the touchpad specifications of your Vostro 3420.
Table 16. Touchpad specifications
Description | Values |
Touchpad resolution: | |
Horizontal | 300 |
Vertical | 300 |
Touchpad dimensions: | |
Horizontal | 114.40 mm (4.50 in.) |
Vertical | 69.40 mm (2.73 in.) |
Touchpad gestures | For more information about touchpad gestures available on Windows, see the Microsoft knowledge base article at support.microsoft.com. |
The following table lists the power adapter specifications of your Vostro 3420.
Table 17. Power adapter specifications
Description | Values |
Type | 65 W AC adapter, Barrel type |
Connector dimensions: | |
External diameter | 4.50 mm (0.17 in.) |
Internal diameter | 2.90 mm (0.11 in.) |
Power-adapter dimensions: | |
Height | 28 mm ( 1.10 in.) |
Width | 106 mm (4.17 in.) |
Depth | 48 mm (1.89 in.) |
Power-adapter weight (maximum) | 0.3 kg (0.66 lb) |
Input voltage | 100 VAC x 240 VAC |
Input frequency | 50 Hz x 60 Hz |
Input current (maximum) | 1.70 A |
Output current (continuous) | 3.34 A |
Rated output voltage | 19.50 VDC |
Temperature range: | |
Operating | 0°C to 40°C (32°F to 104°F) |
Storage | -40°C to 70°C (-40°F to 158°F) |
Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components. |
The following table lists the battery specifications of your Vostro 3420.
Table 18. Battery specifications
Description | Option one | Option two |
Battery type | 3-cell, 41 Wh "smart" lithium ion | 4-cell, 54 Wh "smart" lithium ion |
Battery voltage | 11.25 VDC | 15.00 VDC |
Battery weight (maximum) | 0.19 Kg (0.41 lb) | 0.24 kg (0.54 lbs) |
Battery dimensions: | ||
Height | 206.40 mm (8.12 in.) | 271.90 mm (10.70 in.) |
Width | 82.00 mm (3.22 in.) | 82.00 mm (3.22 in.) |
Depth | 5.75 mm (0.22 in.) | 5.75 mm (0.22 in.) |
Temperature range: | ||
Operating | When charging battery:
| When charging battery:
When discharging battery:
|
Storage | –20°C to 60°C (-4°F to 140°F) | –20°C to 60°C (-4°F to 140°F) |
Battery operating time | Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions. | Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions. |
Battery charging time (approximate) | Standard Charge/Predominately AC User Charge Method:
Express Charge Method:
Express Charge Boost Charge Method (Fast Charge for Initial 35%):
| Standard Charge/Predominately AC User Charge Method:
Express Charge Method:
|
Coin-cell battery | NA | NA |
Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components. |
The following table lists the display specifications of your Vostro 3420.
Table 19. Display specifications
Description | Option one | Option two |
Display type | 14-inch High Definition (HD) | 14-inch Full High Definition (FHD) |
Touch options | No | No |
Display-panel technology | Twisted Nematic (TN) | In-Plane Switching (IPS) |
Display-panel dimensions (active area): | ||
Height | 174.02 mm (6.85 in.) | 174.02 mm (6.85 in.) |
Width | 309.37 mm (12.18 in.) | 309.37 mm (12.18 in.) |
Diagonal | 355.60 mm (14.00 in.) | 355.60 mm (14.00 in.) |
Display-panel native resolution | 1366 x 768 | 1920 x 1080 |
Luminance (typical) | 220 nits | 250 nits |
Megapixels | 1.05 | 2.07 |
Color gamut | 45% NTSC typical | NTSC 45% typical |
Pixels Per Inch (PPI) | 112 ppi | 158 ppi |
Contrast ratio (min.) | 300:1 | 500:01 |
Response time (max.) | 21 ms | 35 ms |
Refresh rate | 60 Hz | 60 Hz |
Horizontal view angle | 45 degrees (Left/Right) | 85 degrees (Left/Right) |
Vertical view angle | 15 degrees (Up) / 35 degrees (Down) | 85 degrees (Up) / 85 degrees (Down) |
Pixel pitch | 0.2265 mm x 0.2265 mm | 0.161×0.161 mm |
Power consumption (maximum) | 2.50 W | 3.90 W |
Anti-glare vs glossy finish | Anti-glare | Anti-glare |
The following table lists the sensor of your Vostro 3420.
Table 20. Sensor
Sensor support |
Hall sensor |
The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Vostro 3420.
Table 21. GPU—Integrated
Controller | Memory size | Processor |
Intel Iris Xe Graphics | Shared system memory |
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Intel UHD Graphics | Shared system memory |
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The following table lists the specifications of the discrete Graphics Processing Unit (GPU) supported by your Vostro 3420.
Table 22. GPU—Discrete
Controller | Memory size | Memory type |
NVIDIA GeForce MX350 | GB | GDDR5 |
NVIDIA GeForce MX550 | GB | GDDR6 |
The following table lists the hardware security of your Vostro 3420.
Table 23. Hardware security
Hardware security |
1 Wedge-shaped lock slot |
SafeID including Trusted Platform Module (TPM) 2.0 |
Support BIOS password update via (Dell Command | Configure) |
Support DDPE UEFI Preboot Authentication (PBA) solution for Windows 8 and greater |
BIOS Disable TPM (KillTPM) |
Trusted Platform Module TPM 2.0 |
SafeBIOS: includes Dell Off-host BIOS Verification, BIOS Resilience, BIOS Recovery, and additional BIOS Controls |
China TPM |
This table lists the operating and storage specifications of your Vostro 3420.
Airborne contaminant level: G1 as defined by ISA-S71.04-1985
Table 24. Computer environment
Description | Operating | Storage |
Temperature range | 0°C to 35°C (32°F to 95°F) | -40°C to 65°C (-40°F to 149°F) |
Relative humidity (maximum) | 10% to 90% (non-condensing) | 0% to 95% (non-condensing) |
Vibration (maximum)* | 0.66 GRMS | 1.30 GRMS |
Shock (maximum) | 110 G† | 160 G† |
Altitude range | -15.2 m to 3048 m (-49.87 ft to 10000 ft) | -15.2 m to 10668 m (-49.87 to 35000 ft) |
Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components. |
* Measured using a random vibration spectrum that simulates user environment.
† Measured using a 2 ms half-sine pulse.
Prolonged exposure to blue light from the display may lead to long-term effects such as eye strain, eye fatigue, or damage to the eyes.
Blue light is a color in the light spectrum which has a short wavelength and high energy. Chronic exposure to blue light, particularly from digital sources, may disrupt sleep patterns and cause long-term effects such as eye strain, eye fatigue, or damage to the eyes.
ComfortView mode can be enabled and configured using the Dell CinemaColor application.
ComfortView mode complies with TÜV Rheinland's requirement for low blue light displays.
Low blue light: Dell ComfortView software technology reduces harmful blue light emissions to make extended screen time easy on your eyes.
To reduce the risk of eye strain, it is also recommended that you:
NOTE: Keyboard characters may differ depending on the keyboard language configuration. Keys used for shortcuts remain the same across all language configurations.
Some keys on your keyboard have two symbols on them. These keys can be used to type alternate characters or to perform secondary functions. The symbol shown on the lower part of the key refers to the character that is typed out when the key is pressed. If you press shift and the key, the symbol shown on the upper part of the key is typed out. For example, if you press 2, 2 is typed out; if you press Shift + 2, @ is typed out.
The keys F1-F12 at the top row of the keyboard are function keys for multi-media control, as indicated by the icon at the bottom of the key. Press the function key to invoke the task represented by the icon. For example, pressing F1 mutes the audio (refer to the table below).
However, if the function keys F1-F12 are needed for specific software applications, multi-media functionality can be disabled by pressing Fn + Esc. Subsequently, multi-media control can be invoked by pressing Fn and the respective function key. For example, mute audio by pressing Fn + F1.
NOTE: You can also define the primary behavior of the function keys (F1–F12) by changing Function Key Behavior in BIOS setup program.
Table 25. List of keyboard shortcuts
Function key | Primary behavior |
F1 | Mute audio |
F2 | Decrease volume |
F3 | Increase volume |
F4 | Play/Pause |
F5 | Toggle keyboard backlight (optional) |
F6 | Decrease brightness |
F7 | Increase brightness |
F8 | Switch to external display |
F10 | Print screen |
F11 | Home |
F12 | End |
The Fn key is also used with selected keys on the keyboard to invoke other secondary functions.
Table 26. Secondary behavior
Function key | Secondary behavior |
Fn + F1 | Operating system and application specific F1 behavior |
Fn + F2 | Operating system and application specific F2 behavior |
Fn + F3 | Operating system and application specific F3 behavior |
Fn + F4 | Operating system and application specific F4 behavior |
Fn + F5 | Operating system and application specific F5 behavior |
Fn + F6 | Operating system and application specific F6 behavior |
Fn + F8 | Operating system and application specific F8 behavior |
Fn + F9 | Operating system and application specific F9 behavior |
Fn + F10 | Operating system and application specific F10 behavior |
Fn + F11 | Operating system and application specific F11 behavior |
Fn + F12 | Operating system and application specific F12 behavior |
Fn + PrtScr | Turn off/on wireless |
Fn + B | Pause/Break |
Fn + Insert | Sleep |
Fn + S | Toggle scroll lock |
Fn + H | Toggle between power and battery-status light/hard-drive activity light |
Fn + R | System request |
Fn + Ctrl | Open application menu |
Fn + Esc | Toggle Fn-key lock |
Fn + PgUp | Page up |
Fn + PgDn | Page down |
Fn + Home | Home |
Fn + End | End |
Self-help resources
You can get information and help on Dell products and services using these self-help resources:
Table 27. Self-help resources
Self-help resources | Resource location |
Information about Dell products and services | www.dell.com |
My Dell app | ![]() |
Tips | ![]() |
Contact Support | In Windows search, type Contact Support, and press Enter. |
Online help for operating system | www.dell.com/support/windows www.dell.com/support/linux |
Access top solutions, diagnostics, drivers and downloads, and learn more about your computer through videos, manuals and documents. | Your Dell computer is uniquely identified by a Service Tag or Express Service Code. To view relevant support resources for your Dell computer, enter the 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 |
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Contacting Dell
To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell.
NOTE: Availability varies by country/region and product, and some services may not be available in your country/region.
NOTE: If you do not have an active Internet connection, you can find contact information about your purchase invoice, packing slip, bill, or Dell product catalog.
NOTE: A NOTE indicates important information that helps you make better use of your product.
A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
A WARNING indicates a potential for property damage, personal injury, or death.
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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