DELL XPS 8940 User Manual

XPS 8940  
Setup and Specifications  
Regulatory Model: D28M  
Regulatory Type: D28M003  
February 2021  
Rev. A04  
Contents  
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  
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  
Dell Digital Delivery  
Download software applications, which are purchased but not preinstalled on your computer. For  
more information about using Dell Digital Delivery, see the knowledge base article SLN153764 at  
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  
14  
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  
15  
     
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:  
16  
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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