Dell Latitude 7490 Operation and maintenance manual

OptiPlex 7490 All-In-One
Setup and Specifications
Regulatory Model: W26C
Regulatory Type: W26C003/W26C004
August 2021
Rev. A01

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.
© 2021 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.

Chapter 1: Set up your OptiPlex 7490 All-in-One........................................................................... 4
Chapter 2: Views of OptiPlex 7490 All-in-One.............................................................................. 12
Front......................................................................................................................................................................................12
Retractable camera........................................................................................................................................................... 13
Left........................................................................................................................................................................................ 14
Right......................................................................................................................................................................................15
Back.......................................................................................................................................................................................16
Bottom.................................................................................................................................................................................. 17
Inside view of your computer..........................................................................................................................................18
System board layout.........................................................................................................................................................20
Chapter 3: Specifications of OptiPlex 7490 All-in-One................................................................. 21
Dimensions and weight..................................................................................................................................................... 21
Processor............................................................................................................................................................................. 21
Chipset................................................................................................................................................................................. 22
Operating system.............................................................................................................................................................. 23
Memory................................................................................................................................................................................23
Memory configuration matrix................................................................................................................................... 24
External ports.....................................................................................................................................................................24
Internal slots....................................................................................................................................................................... 25
Ethernet...............................................................................................................................................................................25
Wireless module.................................................................................................................................................................25
Audio.....................................................................................................................................................................................26
Storage................................................................................................................................................................................ 26
Intel Optane memory........................................................................................................................................................ 27
Media-card reader.............................................................................................................................................................28
Camera.................................................................................................................................................................................28
Power ratings..................................................................................................................................................................... 29
Power supply connectors.......................................................................................................................................... 30
Display.................................................................................................................................................................................. 30
GPU—Integrated............................................................................................................................................................... 31
GPU—Discrete...................................................................................................................................................................31
Environmental.................................................................................................................................................................... 32
Regulatory........................................................................................................................................................................... 32
Operating and storage environment.............................................................................................................................32
Chapter 4: Getting help and contacting Dell................................................................................ 34
Contents
Contents 3

Set up your OptiPlex 7490 All-in-One
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
1. Set up the stand.
Figure 1. Articulating stand
1
4 Set up your OptiPlex 7490 All-in-One

Figure 2. Fixed stand
Set up your OptiPlex 7490 All-in-One 5

Figure 3. Height Adjustable Stand
NOTE: Follow the same procedure to install the Height Adjustable Stand with Optical Disk Drive.
2. Set up the keyboard and mouse.
NOTE: For setup instructions, see the documentation shipped with the keyboard and mouse.
6 Set up your OptiPlex 7490 All-in-One

3. Route the power cable through the stand, then connect the power cable.
Set up your OptiPlex 7490 All-in-One 7

4. Press the power button.
8Set up your OptiPlex 7490 All-in-One

5. 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.
Set up your OptiPlex 7490 All-in-One 9

●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.
6. Locate and use Dell apps from the Windows Start menu—Recommended.
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.
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.
NOTE: In SupportAssist, click the warranty expiry date to renew or upgrade your warranty.
10 Set up your OptiPlex 7490 All-in-One

Table 1. Locate Dell apps (continued)
Resources Description
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.
Set up your OptiPlex 7490 All-in-One 11

Views of OptiPlex 7490 All-in-One
Front
1. Full HD webcam
2. Camera-status light
3. Display
4. Speakers
5. Power button/power-status indicator
6. Array microphones
2
12 Views of OptiPlex 7490 All-in-One

Retractable camera
NOTE: Depending on the configuration ordered, your computer will have only RGB camera or both RGB camera and
Infrared camera.
1. Full HD camera
2. Infrared camera
3. Infrared emitter
4. Camera-status light
Views of OptiPlex 7490 All-in-One 13

Left
1. SD 4.0 card slot
2. USB 3.2 Gen 2x2 capable Type-C port
3. Universal audio port
4. USB 3.2 Gen 1 port with PowerShare
14 Views of OptiPlex 7490 All-in-One

Right
1. Hard-drive status indicator
Views of OptiPlex 7490 All-in-One 15

Back
1. Back cover
2. Stand cover
3. Kensington security-cable slot
4. Bottom cover
5. Stand
16 Views of OptiPlex 7490 All-in-One

Bottom
1. Cable cover screw hole
2. HDMI-IN—HDMI 1.4 port
3. HDMI-OUT—HDMI 2.0 port
4. DP++ 1.4a/HDCP 2.3 port
5. RJ-45 Ethernet port
6. USB 3.2 Gen 2 ports with Smart Power On
7. USB 3.2 Gen 2 ports
8. Line-out audio port
9. Power connector
10. PSU status indicator LED
Views of OptiPlex 7490 All-in-One 17

1. Display Built-in Self Test button
This button has two functions:
●When the computer is on, use this button to select the video input-source.
Press the button to switch the display between the internal system display and HDMI input.
●When the computer is off (there is no power; neither is it in sleep state nor hibernate state), use this button to run the
built-in selftest
for the display.
Press and hold down this button, and then press the power button to turn on the computer. The built-in color pattern for
the LCD monitor will appear on the screen.
For more information, see the Troubleshooting section in the Service Manual at www.dell.com/support/manuals.
2. Service tag label
Inside view of your computer
NOTE: The appearance of heat sink differs depending on the graphics configuration you ordered.
18 Views of OptiPlex 7490 All-in-One

1. Wireless card
2. System board
3. Camera assembly
4. Heat sink
5. M.2 2230/2280 solid-state drive/Intel Optane PCIe connector
6. Processor fan
7. Memory modules
8. Hard drive
9. M.2 2230/2280 solid-state drive PCIe connector
10. Side-I/O board
11. Speakers
12. Power-button board
13. Microphones
14. Coin-cell battery
15. Power-supply fan
16. Power-supply unit
Views of OptiPlex 7490 All-in-One 19

System board layout
1. Power-supply unit (PSU) cable connector
2. Coin-cell battery
3. Display back-light cable connector
4. Camera cable connector
5. M.2 2230/2280 solid-state drive/Intel Optane PCIe connector
6. Processor-fan cable connector
7. Memory modules
8. Hard-drive connector
9. M.2 2230/2280 solid-state drive PCIe connector
10. Side IO-signal cable connector
11. Side IO-power cable connector
12. Audio-board cable connector
13. Microphone-module cable connector
14. Speaker cable connector
15. Power-button cable connector
16. Display cable connector
17. M.2 WLAN connector
18. PSU-fan cable connector
19. Touchscreen cable connector
20. Processor
20 Views of OptiPlex 7490 All-in-One