Dell Vostro 3681 Operation and maintenance manual

Vostro 3681
Setup and Specifications
1
Regulatory Model: D15S
Regulatory Type: D15S002
May 2020
Rev. A00

Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential 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.
© 2020 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.

Set up your computer
Steps
1. Connect the keyboard and mouse.
2. Connect to your network using a cable, or connect to a wireless network.
1
Set up your computer 3

3. Connect the display.
NOTE: If you ordered your computer with a discrete graphics card. Connect the display cable to the discrete
graphics card connectors.
4. Connect the power cable.
4Set up your computer

5. Press the power button.
Set up your computer 5

6. Finish operating system setup.
For Ubuntu:
Follow the on-screen instructions to complete the setup. For more information about installing and configuring Ubuntu, see the
knowledge base articles SLN151664 and SLN151748 at www.dell.com/support.
For Windows:Follow the on-screen instructions to complete the setup. When setting up, Dell recommends that you:
• Connect to a network for Windows updates.
NOTE: If connecting to a secured wireless network, enter the password for the wireless network access when
prompted.
• If connected to the internet, sign in with or create a Microsoft account. If not connected to the internet, create an offline account.
• On the Support and Protection screen, enter your contact details.
a. Connect to a network.
b. Sign-in to your Microsoft account or create a new account.
6Set up your computer

7. Locate and use Dell apps from the Windows Start menu—Recommended.
Table 1. Locate Dell apps
Dell Product Registration
Register your computer with Dell.
Dell Help & Support
Access help and support for your computer.
SupportAssist
Proactively checks the health of your computer’s hardware and
software.
NOTE: Renew or upgrade your warranty by clicking the
warranty expiry date in SupportAssist.
Dell Update
Updates your computer with critical fixes and important device drivers
as they become available.
Dell Digital Delivery
Download software applications including software that is purchased
but not preinstalled on your computer.
Set up your computer 7

Chassis overview
Front
1. Power button
2. SD card reader
3. HDD activity LED
4. Universal audio jack
5. 2 x USB 2.0 Type-A ports
6. 2 x USB 3.2 Gen 1 Type-A ports
7. 9.5 mm DVD +/- R/W tray type optical drive (optional)
2
8 Chassis overview

Back
1. Line-out re-tasking Line-in audio jack
2. HDMI 1.4b port
3. VGA port
4. 2 x USB 3.2 Gen 1 Type-A ports
5. 2 x USB 2.0 Type-A ports with Smart Power On
6. Ethernet port
7. Expansion slots
8. Power port
9. PSU indicator LED
10. Padlock ring
11. Kensington cable lock slot
Chassis overview 9

Specifications of Vostro 3681
Dimensions and weight
Table 2. Dimensions and weight
Description Values
Height 290 mm (11.42 in.)
Width 92.6 mm (3.65 in.)
Depth 292.8 mm (11.53 in.)
Weight (approximate) 4.66 Kg (10.28 lb)
NOTE: The weight of your system unit varies depending on the configuration ordered and the manufacturing
variability.
Processors
NOTE: Global Standard Products (GSP) are a subset of Dell’s relationship products that are managed for availability and
synchronized transitions on a worldwide basis. They ensure the same platform is available for purchase globally. This
allows customers to reduce the number of configurations managed on a worldwide basis, thereby reducing their costs.
They also enable companies to implement global IT standards by locking in specific product configurations worldwide.
NOTE: Processor numbers are not a measure of performance. Processor availability is subject to change and may vary
by region/country.
Table 3. Processors
Description Values
Processors 10th
Generation
Intel
Pentium
Gold
G-6400
10th
Generation
Intel Core
i3-10100
10th
Generation
Intel Core
i5-10400F
10th
Generation
Intel Core
i5-10400
10th
Generation
Intel Core
i7-10700
10th Generation
Intel Core
i7-10700F
10th Generation
Intel Celeron
G-5900
Wattage 58 W 65 W 65 W 65 W 65 W 65 W 58 W
Core count 2 4 6 6 8 8 2
Thread count 4 8 12 12 16 16 2
Speed Up to 4.0
GHz
3.6 GHz to
4.3 GHz
2.9 GHz to
4.3 GHz
2.9 GHz to
4.3 GHz
2.9 GHz to
4.8 GHz
2.9 GHz to 4.8
GHz
Up to 3.4 GHz
Cache 4 MB 6 MB 12 MB 12 MB 16 MB 16 MB 2 MB
Integrated graphics Intel UHD
Graphics
610
Intel UHD
Graphics
630
N/A Intel UHD
Graphics
630
Intel UHD
Graphics
630
N/A Intel UHD
Graphics 610
3
10 Specifications of Vostro 3681

Chipset
Table 4. Chipset
Description Values
Chipset B460
Processor 10th Generation Intel Core i3/i5/i7 and Intel Pentium Gold G-6400
and Celeron G-5900
DRAM bus width 64-bit
PCIe bus Up to Gen3
Operating system
• Windows 10 Home (64-bit)
• Windows 10 Professional (64-bit)
• Ubuntu 18.04
Memory
Table 5. Memory specifications
Description Values
Slots 2 UDIMM slots
Type DDR4
Speed • 2666 MHz
• 2933 MHz (supported on Core i7-10700 processor)
NOTE: Memory speed may be subject to change by
regions.
Maximum memory 64 GB
Minimum memory 4 GB
Memory per slot 4 GB, 8 GB, 16 GB, 32 GB
Configurations supported: • 4 GB: 1 x 4 GB
• 8 GB: 1 x 8 GB, 8 GB, 2 x 4 GB
• 12 GB: 1 x 4 GB and 1 x 8 GB
• 16 GB: 1 x 16 GB, 2 x 8 GB
• 32 GB: 1 x 32 GB, 2 x 16 GB
• 64 GB: 2 x 32 GB
Ports and connectors
Table 6. Ports and connectors
Description Values
Front
Specifications of Vostro 3681 11

Table 6. Ports and connectors(continued)
Description Values
USB • Two USB 3.2 Gen 1 Type-A ports
• Two USB 2.0 Type-A ports
Audio One Universal audio jack
Back
Network One RJ-45 Port 10/100/1000 Mbps
USB • Two USB 3.2 Gen 1 Type-A ports
• Two USB 2.0 Type-A ports with Smart Power On
Audio One Line-out re-tasking Line-in audio port
Video • One HDMI 1.4b port
• One VGA port
NOTE: Video ports are not available with systems
configured with Intel Core i5-10400F and i7-10700F
processors.
Memory card reader SD 4.0 card reader (optional)
Security • One Kensington cable lock slot
• One Padlock ring
Internal
Expansion • One half-height PCIe x1 slot
• One half-height PCIe x16 slot
M.2 • One M.2 2230 slot for Wi-Fi/Bluetooth card
• One M.2 2230/2280 slot for solid-state drive
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article at
https://www.dell.com.
Communications
Ethernet
Table 7. Ethernet specifications
Description Values
Model number Realtek RTL8111HS
Transfer rate 10/100/1000 Mbps
12 Specifications of Vostro 3681

Wireless module
Table 8. Wireless module specifications
Description Values
Model number Intel Wireless-AC 3165
802.11ac 1x1 + Bluetooth
4.2
Intel Wireless-AC 9260 802.11ac 2x2 + Bluetooth 5.0 Realtek RTL8723DE
802.11bgn 1x1 +
Bluetooth v4.2
Transfer rate Up to 433 Mbps Up to 1.73 Gbps Up to 150 Mbps
Frequency bands
supported
2.4 GHz/5 GHz 2.4 GHz/5 GHz 2.4 GHz/5 GHz
Wireless standards • WiFi 802.11a/b/g
• Wi-Fi 4 (WiFi
802.11n)
• Wi-Fi 5 (WiFi
802.11ac)
• WiFi 802.11a/b/g
• Wi-Fi 4 (WiFi 802.11n)
• Wi-Fi 5 (WiFi 802.11ac)
• WiFi 802.11a/b/g
• Wi-Fi 4 (WiFi
802.11n)
Encryption • 64-bit/128-bit WEP
• AES-CCMP
• TKIP
• 64-bit/128-bit WEP
• AES-CCMP
• TKIP
• 64-bit/128-bit WEP
• AES-CCMP
• TKIP
Bluetooth Bluetooth 4.2 Bluetooth 5.0 Bluetooth 4.2
Audio
Table 9. Audio specifications
Description Values
Type Dual Channel High Definition Audio
Controller Realtek ALC3246
Internal interface Intel High Definition Audio Interface
External interface • One Universal audio jack (front)
• One Line-out re-tasking Line-in audio jack (rear)
Storage
Your computer supports one or more combination of the following configurations:
• One 3.5-inch, 7200 RPM, SATA hard drive
• One M.2 Gen 3 PCIe x4 NVMe Solid State Drive
• One 9.5 mm DVD +/- R/W tray type optical drive
The primary drive of your computer varies with the storage configuration. For computers:
• with a M.2 drive, the M.2 drive is the primary drive
• without a M.2 drive, the 3.5-inch hard drive is the primary drive
NOTE: For dual 2.5-inch hard drive and Intel Optane memory configuration, you must disconnect the 2nd hard drive from
the controller to support Intel Optane memory in the Windows operating system.
Specifications of Vostro 3681 13

Table 10. Storage specifications
Storage type Interface type Capacity
3.5-inch, 7200 RPM, SATA hard-disk drive SATA AHCI, up to 6 Gbps Up to 2 TB
M.2 Class 35 solid-state drive PCIe x4 NVMe Up to 512 GB
8x Optical Disk Drive DVD +/- R/W SATA AHCI Supplier dependent
Table 11. 9.5 mm 8x Optical Disk Drive DVD Read/Write
Description Values
Type 8x Optical Disk 9.5 mm Drive DVD +/- R/W tray type (optional)
External dimensions without bezel (W x H X D) 8.0 mm (5.04 in)/ 9.5 mm (0.37 in)/ 126.1 mm (4.97 in)
Weight (max) 140 g (0.39 lb)
Interface type and speed SATA 1.5 Gb/s
Disc capacity Standard
Internal buffer size 0.5 MB
Access time (typical) Supplier dependent
Maximum data transfer rates
Writes 8x DVD/24x CD
Reads 8x DVD/24x CD
Power source
DC power requirement 5 V
DC current 1300 mA
Environmental Operating Conditions (Non-Condensing):
Operating Temperature Range 5°C to 50°C
Relative Humidity Range 10% to 90% RH
Maximum Wet Bulb Temperature 29°C
Altitude Range 0 m to 3048 m
Environmental Non-Operating Conditions (Non-
Condensing):
Operating Temperature Range -40°C to 65°C
Relative Humidity Range 5% to 95% RH
Maximum Wet Bulb Temperature 38°C
Altitude Range 0 m to 10600 m
Media-card reader
NOTE: Media-card reader is mutually exclusive with a dual M.2 configuration.
Table 12. Media-card reader specifications
Description Values
Type SD 4.0 card reader (optional)
14 Specifications of Vostro 3681

Table 12. Media-card reader specifications(continued)
Description Values
Cards supported • Secure Digital High Capacity (SDHC)
• Secure Digital Extended Capacity (SDXC)
• Secure Digital (SD)
Power supply unit
Table 13. Power supply unit specifications
Description Values
Type D9 200 W EPA Bronze
Input voltage 90 VAC to 264 VAC
Input frequency 47 Hz to 63 Hz
Input current (maximum) 3.20 A
Output current (continuous) • +12 VA/16.50 A
• +12 VB/14 A
Standby mode:
• +12 VA/0.5 A
• +12 VB/2.5 A
Rated output voltage • +12 VA
• +12 VB
Temperature range:
Operating 5°C to 45°C (41°F to 113°F)
Storage -40°C to 70°C (-40°F to 158°F)
Video
Table 14. Integrated graphics specifications
Integrated graphics
Controller External display support Memory size Processor
Intel UHD 610 Graphics • VGA
• HDMI 1.4b
Shared system memory 10th Generation Intel
Celeron and Pentium
Gold
Intel UHD 630 Graphics • VGA
• HDMI 1.4b
Shared system memory 10th Generation Intel
Core i3/i5/i7
processor
Table 15. Discrete graphics specifications
Discrete graphics
Controller External display support Memory size Memory Type
NVIDIA GeForce GT730 • One HDMI
• One Dual Link DVI-D
2 GB GDDR5
Specifications of Vostro 3681 15

CMOS battery
Table 16. CMOS battery
Brand Type Voltage Composition Battery life
MITSUBISHI CR2032 3.0 V Lithium metal Continuous Discharge Under 15 kΩ Load to 2.0 V
End-Voltage. 20℃±2℃940 Hrs. or Longer.910
Hrs.or Longer after 12 mo.
Security
Table 17. Security
Security options Vostro 3681
Kensington cable lock Supported
Padlock Supported
Data security
Table 18. Data security
Data security options Values
Microsoft Windows BitLocker Supported
Local hard drive data wipe through BIOS (secure erase) Supported
Computer environment
Airborne contaminant level: G1 as defined by ISA-S71.04-1985
Table 19. Computer environment
Description Operating Storage
Temperature range 10°C to 35°C (50°F to 95°F) -40 °C to 65 °C (-40 °F to 149 °F)
Relative humidity (maximum) 20% to 80% (non-condensing) 5% to 95% (non-condensing)
Vibration (maximum)*0.26 GRMS 1.37 GRMS
Shock (maximum) 40 G† 105 G†
Altitude (maximum) 0 m to 3048 m (0 ft to10,000 ft) 0 m to 10668 m (0 ft to 35,000 ft)
* Measured using a random vibration spectrum that simulates user environment.
† Measured using a 2 ms half-sine pulse when the hard drive is in use.
‡ Measured using a 2 ms half-sine pulse when the hard-drive head is in parked position.
Energy Star and Trusted Platform Module (TPM)
Table 20. Energy Star and TPM
Features Specifications
Energy Star Compliant
16 Specifications of Vostro 3681

Table 20. Energy Star and TPM(continued)
Features Specifications
Discrete TPM Optional
Environmental
Table 21. Environmental specifications
Feature
Recyclable packaging Yes
BFR/PVC—free chassis No
Vertical orientation packaging support Yes
MultiPack packaging Yes (DAO only)
Energy-Efficient Power Supply Standard
ENV0424 compliant Yes
NOTE: Wood‐based fiber packaging contains a minimum of 35% recycled content by total weight of wood‐based fiber.
Packaging that contains without wood‐based fiber can be claimed as Not Applicable. Anticipated Required Criteria for
EPEAT Revision Effective 1H 2018.
Service and support
NOTE: For more details on Dell Service Plans, see https://www.dell.com/learn/us/en/19/services/warranty-support-
services.
Table 22. Service and support
Vostro 3681
1-year Base Next Business Day On-site
warranty Standard
2-4 Year Warranty1Next Business Day
On-site2(3-3-3) Optional
ProSupport Optional
ProSupport Plus Optional
Accidental damage Optional
1For a copy of guarantees or limited warranties, write to Dell USA L.P., Attn: Warranties, One Dell Way, Round Rock, TX 78682. For more
information, go to www.dell.com/warranty.
2Service may be provided by third party. Technician is dispatched if necessary, following phone-based troubleshooting. Subject to parts
availability, geographical restrictions, and terms of service contract. Service timing dependent upon time-of-day call placed to Dell. U.S.A
only.
Specifications of Vostro 3681 17

System setup
System setup enables you to manage your tabletdesktopnotebook hardware and specify BIOS level options. From the System setup, you
can:
• Change the NVRAM settings after you add or remove hardware
• View the system hardware configuration
• Enable or disable integrated devices
• Set performance and power management thresholds
• Manage your computer security
BIOS overview
The BIOS manages data flow between the computer's operating system and attached devices such as hard disk, video adapter, keyboard,
mouse, and printer.
Entering BIOS setup program
About this task
Turn on (or restart) your computer and press F2 immediately.
Boot menu
Press <F12> when the Dell logo appears to initiate a one-time boot menu with a list of the valid boot devices for the system. Diagnostics
and BIOS Setup options are also included in this menu. The devices listed on the boot menu depend on the bootable devices in the system.
This menu is useful when you are attempting to boot to a particular device or to bring up the diagnostics for the system. Using the boot
menu does not make any changes to the boot order stored in the BIOS.
The options are:
• UEFI Boot:
○Windows Boot Manager
• Other Options:
○BIOS Setup
○BIOS Flash Update
○Diagnostics
○Change Boot Mode Settings
Navigation keys
NOTE: For most of the System Setup options, changes that you make are recorded but do not take effect until you
restart the system.
Keys Navigation
Up arrow Moves to the previous field.
Down arrow Moves to the next field.
Enter Selects a value in the selected field (if applicable) or follow the link in the field.
Spacebar Expands or collapses a drop-down list, if applicable.
4
18 System setup

Keys Navigation
Tab Moves to the next focus area.
Esc Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message
that prompts you to save any unsaved changes and restarts the system.
Boot Sequence
Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example:
optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can:
• Access System Setup by pressing F2 key
• Bring up the one-time boot menu by pressing F12 key
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
NOTE: Choosing Diagnostics, will display the diagnostics screen.
The boot sequence screen also displays the option to access the System Setup screen.
System setup options
NOTE: Depending on this computer and its installed devices, the items listed in this section may or may not appear.
Table 23. System setup options—System information menu
General-System Information
System Information
BIOS Version Displays the BIOS version number.
Service Tag Displays the Service Tag of the computer.
Asset Tag Displays the Asset Tag of the computer.
Ownership Tag Displays the ownership tag of the computer.
Manufacture Date Displays the manufacture date of the computer.
Ownership Date Displays the ownership date of the computer.
Express Service Code Displays the express service code of the computer.
Memory Information
Memory Installed Displays the total computer memory installed.
Memory Available Displays the total computer memory available.
Memory Speed Displays the memory speed.
Memory Channel Mode Displays single or dual channel mode.
Memory Technology Displays the technology used for the memory.
DIMM 1 Size Displays the DIMM 1 memory size.
DIMM 2 Size Displays the DIMM 2 memory size.
PCI Information
SLOT2 Displays the PCI information of the computer.
System setup 19

Table 23. System setup options—System information menu(continued)
General-System Information
SLOT3 Displays the PCI information of the computer.
SLOT5_M.2 Displays the PCI information of the computer.
Processor Information
Processor Type Displays the processor type.
Core Count Displays the number of cores on the processor.
Processor ID Displays the processor identification code.
Current Clock Speed Displays the current processor clock speed.
Minimum Clock Speed Displays the minimum processor clock speed.
Maximum Clock Speed Displays the maximum processor clock speed.
Processor L2 Cache Displays the Processor L2 Cache size.
Processor L3 Cache Displays the Processor L2 Cache size.
HT Capable Displays whether the processor is HyperThreading (HT) capable.
64-Bit Technology Displays whether 64-bit technology is used.
Device Information
SATA-0 Displays the SATA device information of the computer.
SATA-1 Displays the SATA device information of the computer.
M.2 PCIe SSD-2 Displays the M.2 PCIe SSD information of the computer.
LOM MAC Address Displays the LOM MAC address of the computer.
Video Controller Displays the video controller type of the computer.
Audio Controller Displays the audio controller information of the computer.
Wi-Fi Device Displays the wireless device information of the computer.
Bluetooth Device Displays the bluetooth device information of the computer.
Boot Sequence
Boot Sequence Displays the boot sequence.
Boot List Option Displays the available boot options.
UEFI Boot Path Security
Always,Except Internal HDD Enable or disable the system to prompt the user to enter the Admin password when
booting a UEFI boot path from the F12 boot menu. Default: Enabled
Always Enable or disable the system to prompt the user to enter the Admin password when
booting a UEFI boot path from the F12 boot menu. Default: Disabled
Never Enable or disable the system to prompt the user to enter the Admin password when
booting a UEFI boot path from the F12 boot menu. Default: Disabled
Date/Time Displays the current date in MM/DD/YY format and current time in HH:MM:SS
AM/PM format.
Table 24. System setup options—System Configuration menu
System Configuration
Integrated NIC Controls the on-board LAN controller.
Enable UEFI Network Stack Enable or disable UEFI Network Stack.
SATA Operation Configure operating mode of the integrated SATA hard drive controller.
Drives Enable or disable various drives on board.
20 System setup