XPS 8940
Setup and Specifications
Regulatory Model: D28M
Regulatory Type: D28M003
February 2021
Rev. A04
Contents
Chapter 1: Set up your computer................................................................................................... 4
Dimensions and weight..................................................................................................................................................... 13
Wireless module..................................................................................................................................................................17
GPU—Integrated...............................................................................................................................................................19
GPU—Discrete..................................................................................................................................................................20
Power ratings.....................................................................................................................................................................20
Contents
3
1
Set up your computer
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
1. Connect the keyboard and mouse to suitable ports. For instructions on how to connect a wireless keyboard and mouse, see
the documentation that ships with the wireless keyboard and mouse.
2. Connect to your network using an Ethernet cable. Alternatively, connect to a wireless network while setting up your
operating system.
4
Set up your computer
3. Connect the display. For more information about setting up the display, see the documentation that is shipped with your
display.
NOTE: If you have two graphics cards, the card installed in PCI-Express X16 (graphics slot 1) is the primary graphics
card.
4. Connect the power cable to the computer and then connect it to the wall outlet.
Set up your computer
5
5. Press the power button on the front of computer to turn on the computer. If required, press the power button on the display
to turn it on.
6. For instructions on how to connect speakers, a printer and other accessories, see Me and My Dell at www.dell.com/manuals.
7. Finish Windows setup.
Follow the on-screen instructions to complete the setup. When setting up, Dell recommends that you:
●
Connect to a network for Windows updates.
6
Set up your computer
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.
8. 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.
SupportAssist
Proactively 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
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.
Dell Digital Delivery
Download software applications, which are purchased but not preinstalled on your computer. For
Set up your computer
7
2
Views of XPS 8940
Front
1. Slim optical drive (optional)
Reads from and writes to CDs, DVDs, and Blu ray discs.
2. Optical-drive activity light
The Optical-drive activity light turns on when the computer reads from or writes to an optical drive.
3. Optical-drive eject button
Press to open the optical drive tray.
4. Optical-drive emergency eject pinhole
Used to eject the optical-drive tray manually if the optical-drive eject button fails.
NOTE: For more information about manually ejecting optical-drive trays, see the knowledge base article SLN301118 at
8
Views of XPS 8940
5. 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 to force shut-down the computer.
NOTE: You can customize the power-button behavior in Windows. For more information, see Me and My Dell at
6. SD-card slot
Reads from and writes to the SD card. The computer supports the following card types:
●
●
●
Secure Digital (SD)
Secure Digital High Capacity (SDHC)
Secure Digital Extended Capacity (SDXC)
7. Headset port
Connect headphones or a headset (headphone and microphone combo).
8. USB 3.1 Gen 1 ports (3)
Connect peripherals such as external storage devices and printers. Provides data transfer speeds up to 5 Gbps.
9. USB 3.1 Gen 1 (Type-C) port
Connect to external storage devices. Provides data transfer speeds up to 5 Gbps.
NOTE: This port does not support video/audio streaming.
Views of XPS 8940
9
Back
1. Back panel
Connect USB, audio, video, and other devices.
2. PCI-Express x1 slot
Connect a PCI-Express card such as graphics, audio, or network card to enhance the capabilities of your computer.
3. PCI-Express x16 (graphics) slot 1
Connect a PCI-Express graphics card to enhance the capabilities of your computer.
4. Expansion slot for dual-width graphics card
This expansion slot seats the bottom half of a dual-width graphics card if it is installed in the PCI-Express x16 slot.
5. PCI-Express x4 slot
Connect a PCI-Express card such as graphics, audio, or network card to enhance the capabilities of your computer.
6. Power port
Connect a power cable to provide power to your computer.
7. Power-supply diagnostics light
Indicates the power-supply state.
8. Security-cable slot (wedge-shaped)
Connect a security cable to prevent unauthorized movement of your computer.
10
Views of XPS 8940
Back panel
1. Hard-drive activity light
The activity light turns on when the computer reads from or writes to the hard drive.
2. Line-out port
Connect speakers.
3. Rear L/R surround port
Connect audio-output devices such as speakers and amplifiers. In a 5.1 speaker channel setup, connect the rear-left and
rear-right speakers.
4. Center or subwoofer surround port
Connect the center speaker and/or subwoofer.
NOTE: For more information about speaker setup, see the documentation that shipped with the speakers.
5. DisplayPort
Connect an external display or a projector.
6. HDMI port
Connect to a TV, external display or another HDMI-in enabled device. Provides video and audio output.
7. USB 3.1 Gen 1 ports (4)
Connect peripherals such as external storage devices and printers. Provides data transfer speeds up to 5 Gbps.
8. USB 2.0 ports (2)
Connect devices such as external storage devices and printers. Provides data transfer speeds up to 480 Mbps.
9. 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. Service Tag label
Views of XPS 8940
11
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.
12
Views of XPS 8940
3
Specifications of XPS 8940
Dimensions and weight
The following table lists the height, width, depth, and weight of your XPS 8940.
Table 2. Dimensions and weight
Description
Height:
Values
Front height
367 mm (14.45 in.)
367 mm (14.45 in.)
169 mm (6.65 in.)
308 mm (12.13 in.)
8.20 kg (18.08 lb)
Rear height
Width
Depth
Weight (maximum)
NOTE: The weight of your computer depends on the
configuration ordered and manufacturing variability.
Processors
The following table lists the details of the processors supported by your XPS 8940.
Table 3. Processors
Processors
Wattage
Core count
Thread count
Speed
Cache
10th Generation
65 W
4
8
Up to 4.30 GHz
6 MB
Intel Core i3-10100
10th Generation
Intel Core i3-10105
65 W
65 W
65 W
4
6
6
8
Up to 4.40 GHz
Up to 4.30 GHz
Up to 4.30 GHz
6 MB
10th Generation
Intel Core i5-10400
12
12
12 MB
12 MB
10th Generation
Intel Core
i5-10400F
10th Generation
Intel Core
i5-10600K
125 W
125 W
65 W
6
6
8
12
12
16
Up to 4.80 GHz
Up to 4.80 GHz
Up to 4.80 GHz
12 MB
12 MB
16 MB
10th Generation
Intel Core
i5-10600KF
10th Generation
Intel Core i7-10700
Specifications of XPS 8940
13
Table 3. Processors
Processors
Wattage
Core count
Thread count
Speed
Cache
10th Generation
Intel Core
125 W
8
16
Up to 5.10 GHz
16 MB
i7-10700K
10th Generation
Intel Core
i7-10700F
65 W
8
8
16
16
Up to 4.80 GHz
Up to 5.10 GHz
16 MB
16 MB
10th Generation
Intel Core
125 W
i7-10700KF
10th Generation
Intel Core i9-10900
65 W
10
10
20
20
Up to 5.20 GHz
Up to 5.30 GHz
20 MB
20 MB
10th Generation
Intel Core
125 W
i9-10900K
10th Generation
Intel Core
i9-10900F
65 W
10
10
20
20
Up to 5.20 GHz
Up to 5.30 GHz
20 MB
20 MB
10th Generation
Intel Core
125 W
i9-10900KF
11th Generation
Intel Core i5-11400
65 W
6
6
12
12
Up to 4.40 GHz
Up to 4.90 GHz
12 MB
12 MB
11th Generation
Intel Core
125 W
i5-11600K
11th Generation
Intel Core
i5-11400F
65 W
6
6
12
12
Up to 4.40 GHz
Up to 4.90 GHz
12 MB
12 MB
11th Generation
Intel Core
125 W
i5-11600KF
11th Generation
Intel Core i7-11700
65 W
8
8
16
16
Up to 4.90 GHz
Up to 5 GHz
16 MB
16 MB
11th Generation
Intel Core
125 W
i7-11700K
11th Generation
Intel Core
i7-11700F
65 W
8
8
16
16
Up to 4.90 GHz
Up to 5 GHz
16 MB
16 MB
11th Generation
Intel Core
125 W
i7-11700KF
11th Generation
Intel Core i9-11900
65 W
8
8
16
16
Up to 5.20 GHz
Up to 5.30 GHz
16 MB
16 MB
11th Generation
Intel Core
125 W
i9-11900K
11th Generation
Intel Core
65 W
8
16
Up to 5.20 GHz
16 MB
i9-11900F
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Specifications of XPS 8940
Table 3. Processors
Processors
Wattage
125 W
Core count
Thread count
Speed
Cache
11th Generation
Intel Core
8
16
Up to 5.30 GHz
16 MB
i9-11900KF
Chipset
The following table lists the details of the chipset supported by your XPS 8940.
Table 4. Chipset
Description
Values
Chipset
H470
Processor
●
●
●
●
●
●
●
●
10th Generation Intel Core i3/i5/i7/i9
10th Generation Intel Core i5K/i7K/i9K
10th Generation Intel Core i7F/i9F
10th Generation Intel Core i5KF/i7KF/i9KF
11th Generation Intel Core i5/i7/i9
11th Generation Intel Core i5K/i7K/i9K
11th Generation Intel Core i5F/i7F/i9F
11th Generation Intel Core i5KF/i7KF/i9KF
DRAM bus width
Flash EPROM
PCIe bus
64-bit
32 MB
Up to Gen3.0
Operating system
Your XPS 8940 supports the following operating systems:
●
●
Windows 10 Home (64-bit)
Windows 10 Professional (64-bit)
Memory
The following table lists the memory specifications of your XPS 8940.
Table 5. Memory specifications
Description
Values
Memory slots
Four UDIMM slots
Dual-channel DDR4
2666 MHz/2933 MHz
128 GB
Memory type
Memory speed
Maximum memory configuration
Minimum memory configuration
8 GB
Specifications of XPS 8940
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Table 5. Memory specifications
Description
Values
Memory size per slot
4 GB, 8 GB, 16 GB, 32 GB
Memory configurations supported
●
8 GB, 2 x 4 GB, DDR4, 2666 MHz/2933 MHz, UDIMM,
dual-channel
●
●
8 GB, 1 x 8 GB, DDR4, 2666 MHz/2933 MHz, UDIMM
16 GB, 2 x 8 GB, DDR4, 2666 MHz/2933 MHz, UDIMM,
dual-channel
●
●
●
16 GB, 1 x 16 GB, DDR4, 2666 MHz/2933 MHz, UDIMM
32 GB, 1 x 32 GB, DDR4, 2666 MHz/2933 MHz, UDIMM
32 GB, 2 x 16 GB, DDR4, 2666 MHz/2933 MHz, UDIMM,
dual-channel
●
●
●
64 GB, 2 x 32 GB, DDR4, 2666 MHz/2933 MHz, UDIMM,
dual-channel
64 GB, 4 x 16 GB, DDR4, 2666 MHz/2933 MHz, UDIMM,
dual-channel
128 GB, 4 x 32 GB, DDR4, 2666 MHz/2933 MHz, UDIMM,
dual-channel
NOTE: The computer is shipped with 3200 MHz memory.
However, with Intel Core i3/i5 processors, it is limited to
2666 MHz. With Intel Core i7/i9 processors, it is limited to
2933 MHz.
Ports and connectors
The following table lists the external and internal ports available on your XPS 8940.
Table 6. Ports and connectors
Description
External:
Network
Values
One RJ-45 port
USB
●
●
●
Seven USB 3.1 Gen 1 ports
Two USB 2.0 ports
One USB 3.1 Gen 1 (Type-C) port
Audio
●
●
●
●
One headset port
One audio line-out port
One rear L/R-surround audio-out port
One center/subwoofer LFE surround audio-out port
Video
NOTE: Depending on the graphics card(s) installed on
your computer, the video ports on your computer may
vary.
Media-card reader
Power port
Security
One SD-card slot
Power-cord connector
One wedge-shaped slot
Internal:
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Specifications of XPS 8940
Table 6. Ports and connectors
Description
Values
PCIe expansion card slots
●
●
●
One PCIe x16
One PCIe x1
One PCIe x4
mSATA
SATA
Not supported
●
●
Two SATA slots for 2.5-inch hard drive
One SATA slot for a 3.5-inch hard drive
M.2
●
●
One M.2 2230 slot for WiFi and Bluetooth combo card
One M.2 2230/2280 slot for solid-state drive/Intel Optane
memory
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article
Ethernet
The following table lists the wired Ethernet Local Area Network (LAN) specifications of your XPS 8940.
Table 7. Ethernet specifications
Description
Values
Model number
Rivet Networks E2600 PCIe Gigabit Ethernet controller
Transfer rate
10/100/1000 Mbps
Wireless module
The following table lists the Wireless Local Area Network (WLAN) modules supported on your XPS 8940.
Table 8. Wireless module specifications
Description
Option one
Option two
Model number
Qualcomm QCA9377 (DW1810)
Killer AX1650i
Transfer rate
Up to 433 Mbps
2.40 GHz/5 GHz
Up to 2400 Mbps
2.40 GHz/5 GHz
Frequency bands supported
Wireless standards
●
●
●
WiFi 802.11a/b/g
●
●
●
●
WiFi 802.11a/b/g
Wi-Fi 4 (WiFi 802.11n)
Wi-Fi 5 (WiFi 802.11ac)
Wi-Fi 4 (WiFi 802.11n)
Wi-Fi 5 (WiFi 802.11ac)
Wi-Fi 6 (WiFi 802.11ax)
Encryption
Bluetooth
●
●
●
64-bit/128-bit WEP
AES-CCMP
TKIP
●
●
●
64-bit/128-bit WEP
AES-CCMP
TKIP
Bluetooth 5.0
Bluetooth 5.1
Specifications of XPS 8940
17
Audio
The following table lists the audio specifications of your XPS 8940.
Table 9. Audio specifications
Description
Values
Audio type
Integrated 5.1 Channel High Definition audio
Realtek ALC3861
Audio controller
Internal audio interface
External audio interface
High definition audio interface
●
●
●
●
One headset port
One audio line-out port
One rear L/R-surround audio-out port
One center/subwoofer LFE surround audio-out port
Storage
This section lists the storage options on your XPS 8940.
Your computer ships one of the following configurations:
●
●
●
●
One 3.5-inch hard drive
One M.2 2230/2280 solid-state drive
One 3.5-inch hard drive and one M.2 2230/2280 solid-state drive
One 3.5-inch hard drive and one M.2 2280 Intel Optane memory
NOTE: This computer is shipped with two empty 2.5-inch hard-drive cages and one SATA extension cable.
The primary drive of your computer varies with the storage configuration. For computers:
●
●
with a M.2 solid-state drive, the M.2 solid-state drive is the primary drive
without a M.2 drive, the 3.5-inch hard drive is the primary drive
Table 10. Storage specifications
Storage type
Interface type
Capacity
3.5-inch hard drive
SATA AHCI, up to 6 Gbps
Up to 2 TB
M.2 2230/2280 solid-state drive
PCIe Gen3.0x4 NVMe, up to 32 Gbps
Up to 2 TB
Intel Optane memory
Intel Optane memory functions only as a storage accelerator. It neither replaces nor adds to the memory (RAM) installed on
your computer.
NOTE: Intel Optane memory is supported on computers that meet the following requirements:
●
●
●
7th Generation or higher Intel Core i3/i5/i7 processor
Windows 10 64-bit version or higher (Anniversary Update)
Latest version of Intel Rapid Storage Technology driver
Table 11. Intel Optane memory
Description
Values
Type
Storage accelerator
18
Specifications of XPS 8940
Table 11. Intel Optane memory
Description
Values
Interface
PCIe 3.0 x2
Connector
M.2 2280
32 GB
Configurations supported
Capacity
32 GB
Media-card reader
The following table lists the media cards supported by your XPS 8940.
Table 12. Media-card reader specifications
Description
Values
One SD card
Media-card type
Media-cards supported
●
●
●
Secure Digital (SD)
Secure Digital High Capacity (SDHC)
Secure Digital Extended Capacity (SDXC)
NOTE: The maximum capacity supported by the media-card reader varies depending on the standard of the media card
installed in your computer.
GPU—Integrated
The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your XPS 8940.
Table 13. GPU—Integrated
Controller
External display support
Memory size
Processor
Intel UHD Graphics 630
●
●
One HDMI 2.0 port
Two DisplayPort 1.4
Shared system memory
●
●
●
●
10th Generation Intel Core
i3/i5/i7/i9
10th Generation Intel Core
i5K/i7K/i9K
11th Generation Intel Core
i3/i5/i7/i9
11th Generation Intel Core
i5K/i7K/i9K
NOTE: 10th Generation
and 11th Intel Core F-
series processors do not
support integrated GPUs.
For computers shipped
with these processors, a
discrete GPU is required.
Specifications of XPS 8940
19
GPU—Discrete
The following table lists the specifications of the discrete Graphics Processing Unit (GPU) supported by your XPS 8940.
Table 14. GPU — Discrete
Controller
External display support
Memory size
Memory type
NVIDIA GeForce GT 1030
●
●
One Single-link DVI-D port 2 GB
GDDR6
One HDMI 2.0 port
NVIDIA GeForce GTX 1650
SUPER
●
●
●
One Dual-link DVI-D port
One HDMI 2.0 port
4GB
GDDR6
GDDR6
GDDR6
GDDR6
GDDR6
One DisplayPort 1.4
NVIDIA GeForce GTX 1660
SUPER
●
●
●
One Dual-link DVI-D port
One HDMI 2.0 port
6 GB
6 GB
6 GB
8 GB
One DisplayPort 1.4
NVIDIA GeForce GTX 1660 Ti
NVIDIA GeForce RTX 2060
●
●
●
One Dual-link DVI-D port
One HDMI 2.0 port
One DisplayPort 1.4
●
●
●
One Dual-link DVI-D port
One HDMI 2.0 port
One DisplayPort 1.4
NVIDIA GeForce RTX 2060
SUPER
●
●
●
One Dual-link DVI-D port
One HDMI 2.0 port
One DisplayPort 1.4
NVIDIA GeForce RTX 2070
SUPER
●
●
One HDMI 2.0 port
Two DisplayPort 1.4
8 GB
12 GB
8 GB
8 GB
3 GB
6 GB
8 GB
8 GB
GDDR6
GDDR6
GDDR6
GDDR6
GDDR6
GDDR6
GDDR6
GDDR6
NVIDIA GeForce RTX 3060
NVIDIA GeForce RTX 3060 Ti
NVIDIA GeForce RTX 3070
AMD Radeon RX 5300
●
●
One HDMI 2.1 port
Three DisplayPort 1.4a
●
●
One HDMI 2.1 port
Two DisplayPort 1.4a
●
●
One HDMI 2.1 port
Two DisplayPort 1.4a
●
●
One HDMI 2.0b port
Two DisplayPort 1.4
AMD Radeon RX 5600
●
●
One HDMI 2.0b port
Three DisplayPort 1.4
AMD Radeon RX 5700
●
●
One HDMI 2.0b port
Three DisplayPort 1.4
AMD Radeon RX 5700 XT
●
●
One HDMI 2.0b port
Three DisplayPort 1.4
Power ratings
The following table lists the power rating specifications of XPS 8940.
Table 15. Power ratings
Description
Option one
Option two
500 W
Type
360 W
20
Specifications of XPS 8940
Table 15. Power ratings
Description
Option one
Option two
Input voltage
90 VAC–264 VAC
90 VAC–264 VAC
Input frequency
47 Hz–63 Hz
5 A
47 Hz–63 Hz
7 A
Input current (maximum)
Output current (continuous)
Rated output voltage
18 A
18 A
12 VDC
12 VDC
Temperature range
Operating
5°C to 45°C (41°F to 113°F)
5°C to 45°C (41°F to 113°F)
Storage
-40°C to 70°C (-40°F to 158°F)
-40°C to 70°C (-40°F to 158°F)
Operating and storage environment
This table lists the operating and storage specifications of your XPS 8940.
Airborne contaminant level: G1 as defined by ISA-S71.04-1985
Table 16. 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)
Vibration (maximum)*
Shock (maximum)
20% to 80% (non-condensing)
0.26 GRMS
5% to 95% (non-condensing)
1.37 GRMS
40 G†, 2.5 ms
105 G†, 2.5 ms
Altitude range
-15.2 m to 3048 m (-49.87 ft to 10000
ft)
-15.2 m to 10668 m (-49.87 ft to 35000
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.
Specifications of XPS 8940
21
4
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 17. Self-help resources
Self-help resources
Resource location
Information about Dell products and services
My Dell app
Tips
Contact Support
In Windows search, type Contact Support, and press
Enter.
Online help for operating system
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
For more information on how to find the Service Tag for your
Dell knowledge base articles for a variety of computer
concerns
2. On the menu bar at the top of the Support page, select
Support > Knowledge Base.
3. In the Search field on the Knowledge Base page, type the
keyword, topic, or model number, and then click or tap the
search icon to view the related articles.
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.
22
Getting help and contacting Dell
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