Dell Inspiron 3668 Operation and maintenance manual

Inspiron 3668
Setup and Specifications
Regulatory Model: D19M
Regulatory Type: D19M003
June 2023
Rev. A02

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.
© 2016-2023 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.

Chapter 1: Set up your computer................................................................................................... 4
Chapter 2: Create a USB recovery drive for Windows.................................................................... 7
Chapter 3: Views........................................................................................................................... 8
Front....................................................................................................................................................................................... 8
Back........................................................................................................................................................................................ 9
Back panel............................................................................................................................................................................10
Chapter 4: Specifications............................................................................................................. 11
Dimensions and weight......................................................................................................................................................11
System information............................................................................................................................................................ 11
Memory................................................................................................................................................................................. 11
Ports and connectors........................................................................................................................................................12
Media-card reader............................................................................................................................................................. 12
Communications................................................................................................................................................................. 12
Audio..................................................................................................................................................................................... 13
Storage................................................................................................................................................................................. 13
Power ratings......................................................................................................................................................................13
Video..................................................................................................................................................................................... 13
Computer environment.....................................................................................................................................................13
Chapter 5: Getting help and contacting Dell................................................................................ 15
Contents
Contents 3

Set up your computer
1. Connect the keyboard and mouse.
See the documentation that shipped with the keyboard and mouse.
2. Connect the network cable — optional.
3. Connect the display.
NOTE: If you ordered your computer with a discrete graphics card, connect the display to the discrete graphics card.
NOTE: For more information about setting up multiple monitors, see the knowledge base article SLN129825 at https://
www.dell.com/support.
4. Connect the power cable.
1
4 Set up your computer

5. Press the power button.
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.
7. Locate and use Dell apps from the Windows Start menu—Recommended
Table 1. Locate Dell apps
Resources Description
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.
Set up your computer 5

Table 1. Locate Dell apps (continued)
Resources Description
SupportAssist
Pro-actively checks the health of your computer’s hardware and software. The SupportAssist
OS Recovery tool troubleshoots issues with the operating system. For more information, see the
SupportAssist documentation at www.dell.com/support.
NOTE: In SupportAssist, click the warranty expiry date to renew or upgrade your warranty.
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 SLN305843 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 153764 at
www.dell.com/support.
8. Create recovery drive for Windows.
NOTE: It is recommended to create a recovery drive to troubleshoot and fix problems that may occur with Windows.
For more information, see Create a USB recovery drive for Windows.
6Set up your computer

Create a USB recovery drive for Windows
Create a recovery drive to troubleshoot and fix problems that may occur with Windows. An empty USB flash drive with a
minimum capacity of 16 GB is required to create the recovery drive.
NOTE: This process may take up to an hour to complete.
NOTE: The following steps may vary depending on the version of Windows installed. Refer to the Microsoft support site for
latest instructions.
1. Connect the USB flash drive to your computer.
2. In Windows search, type Recovery.
3. In the search results, click Create a recovery drive.
The User Account Control window is displayed.
4. Click Yes to continue.
The Recovery Drive window is displayed.
5. Select Back up system files to the recovery drive and click Next.
6. Select the USB flash drive and click Next.
A message appears, indicating that all data in the USB flash drive will be deleted.
7. Click Create.
8. Click Finish.
For more information about reinstalling Windows using the USB recovery drive, see the Troubleshooting section of your
product's Service Manual at www.dell.com/support/manuals.
2
Create a USB recovery drive for Windows 7

Views
Topics:
•Front
•Back
•Back panel
Front
1. Optical drive (optional)
Reads from and writes to CDs and DVDs.
2. Optical-drive eject button
Press to open the optical drive tray.
3. Power button
Press to turn on the computer if it is turned off, in sleep state, or in hibernate state.
Press to put the computer in sleep state if it is turned on.
Press and hold for 4 seconds to force shut-down the computer.
NOTE: You can customize the power-button behavior in Power Options. For more information, see Me and My Dell at
www.dell.com/support/manuals.
4. Hard-drive activity light
Turns on when the computer reads from or writes to the hard drive.
5. Media-card reader
3
8 Views

Reads from and writes to media cards.
6. Headset port
Connect headphones or a headset (headphone and microphone combo).
7. USB 3.0 ports (2)
Connect peripherals such as external storage devices and printers. Provides data transfer speeds up to 5 Gbps.
Back
1. Back panel
Connect USB, audio, video, and other devices.
2. Expansion-card slots
Provide access to ports on any installed PCI Express cards.
3. Power port
Connect a power cable to provide power to your computer.
4. Power-supply diagnostic light
Indicates the power-supply state.
5. Padlock ring(s)
Attach a standard padlock to prevent unauthorized access to the interior of your computer.
6. Security-cable slot
Connect a security cable to prevent unauthorized movement of your computer.
7. Service Tag label
The Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware
components in your computer and access warranty information.
Views 9

Back panel
1. Line-in port
Connect recording or playback devices such as a microphone or CD player.
2. Line-out port
Connect speakers.
3. Microphone port
Connect an external microphone to provide sound input.
4. VGA port
Connect an external display or a projector.
5. HDMI port
Connect to a TV or another HDMI-in enabled device. Provides video and audio output.
6. USB 2.0 ports (4)
Connectperipherals such as storage devices and printers. Provides data transferspeeds up to 480 Mbps.
7. Network port (with lights)
Connect an Ethernet (RJ45) cable from a router or a broadband modem for network or Internet access.
The two lights next to the connector indicate the connectivity status and network activity.
10 Views

Specifications
Topics:
•Dimensions and weight
•System information
•Memory
•Ports and connectors
•Media-card reader
•Communications
•Audio
•Storage
•Power ratings
•Video
•Computer environment
Dimensions and weight
Table 2. Dimensions and weight
Height 352.90 mm (13.90 in)
Width 154 mm (6.06 in)
Depth 303 mm (11.93 in)
Weight (approximate) 5.90 kg (13.01 lb)
NOTE: The weight of your computer varies depending
on the configuration ordered and the manufacturing
variability.
System information
Table 3. System information
Computer model Inspiron 3668
Processor ●Intel Core i3/i5/i7
●Intel Celeron
●Intel Pentium
Chipset Intel H110
Memory
Table 4. Memory specifications
Slots Two U-DIMM slots
Type DDR4
Speed ●2133 MHz (Intel Celeron)
4
Specifications 11

Table 4. Memory specifications (continued)
●2400 MHz (Intel Pentium and Intel Core i3/i5/i7)
Configurations supported ●2 GB DDR4 at 2400 MHz (1 x 2 GB)
●4 GB DDR4 at 2400 MHz (2 x 2 GB)
●8 GB DDR4 at 2400 MHz (2 x 4 GB)
●16 GB DDR4 at 2400 MHz (2 x 8 GB)
Ports and connectors
Table 5. Ports and connectors
External:
Network One RJ45 port
USB ●Four USB 2.0 ports
●Two USB 3.0 ports
Audio/Video ●One headset port
●One microphone port
●One line-out port
●One line-in port
●One VGA port
●One HDMI port
Internal:
M.2 card One M.2 card slot for Wi-Fi and Bluetooth combo card
PCIe slots ●Two PCIe x1 card slots
●One PCIe x16 card slot
Media-card reader
Table 6. Media-card reader specifications
Type One 5-in-1 slot
Cards supported ●SD card
●SD High Capacity (SDHC) card
●SD Extended Capacity (SDXC) card
●MultiMediaCard (MMC)
●MultiMediaCard Plus (MMC Plus)
Communications
Table 7. Supported Communications
Ethernet 10/100/1000 Mbps Ethernet controller integrated on system
board
Wireless ●Up to Wi-Fi 802.11ac/n
●Bluetooth 4.0
12 Specifications

Audio
Table 8. Audio specifications
Controller Realtek ALC3820
Type Integrated 5.1 channel Intel High Definition Audio
Storage
This section lists the storage options on your Inspiron 3668.
Table 9. Storage specifications
Storage Type Interface Storage Capacity
One 2.5 inch Hard Drive SATA 3 500 GB, 1 TB, and 2 TB
One 3.5 inch Hard Drive SATA 3 500 GB, 1 TB, and 2 TB
One 2.5-inch Solid State Drive SATA 128 GB and 256 GB
One 9.5-mm DVD+/-RW Drive SATA 1.5
Power ratings
Table 10. Power ratings
Input voltage 100 VAC to 240 VAC
Input frequency 50 Hz to 60 Hz
Input current (maximum) 4.0 A
Video
Table 11. Video specifications
Integrated Discrete
Controller Intel HD Graphics ●NVIDIA GeForce GT710FH
●NVIDIA GeForce GT730
●NVIDIA GeForce GTX750Ti
●AMD Radeon R9 360
Memory Shared system memory ●2 GB DDR3
●2 GB GDDR5
Computer environment
Airborne contaminant level: G2 or lower as defined by ISA-S71.04-1985
Relative humidity (maximum): 20% to 80% (non-condensing)
Table 12. Computer environment
Operating Storage
Temperature range 10°C to 35°C –40°C to 65°C
Specifications 13

Table 12. Computer environment (continued)
Operating Storage
(50°F to 95°F) (–40°F to 149°F)
Vibration (maximum)*0.25 GRMS 2.20 GRMS
Shock (maximum) 40 G for 2 ms with a change in velocity
of 20 in/s (51 cm/s)†
50 G for 26 ms with a change in velocity
of 320 in/s (813 cm/s)‡
Altitude (maximum) –15.24 m to 3048 m
(–50 ft to 10,000 ft)
–15.24 m to 10,668 m
(–50 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.
14 Specifications

Getting help and contacting Dell
Self-help resources
You can get information and help on Dell products and services using these self-help resources:
Table 13. Self-help resources
Self-help resources Resource location
Information about Dell products and services www.dell.com
My Dell
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
Troubleshooting information, user manuals, setup instructions,
product specifications, technical help blogs, drivers, software
updates, and so on.
www.dell.com/support
Dell knowledge base articles for a variety of computer
concerns.
1. Go to https://www.dell.com/support/home/?
app=knowledgebase.
2. Type the subject or keyword in the Search box.
3. Click Search to retrieve the related articles.
Learn and know the following information about your product:
●Product specifications
●Operating system
●Setting up and using your product
●Data backup
●Troubleshooting and diagnostics
●Factory and system restore
●BIOS information
See Me and My Dell at www.dell.com/support/manuals.
To locate the Me and My Dell relevant to your product,
identify your product through one of the following:
●Select Detect Product.
●Locate your product through the drop-down menu under
View Products.
●Enter the Service Tag number or Product ID in the
search bar.
Contacting Dell
To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell.
NOTE: Availability varies by country and product, and some services may not be available in your country.
NOTE: If you do not have an active internet connection, you can find contact information on your purchase invoice, packing
slip, bill, or Dell product catalog.
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Getting help and contacting Dell 15