Dell Latitude 5550 Operation and maintenance manual

Dell Precision 5550
Setup and Specifications
Regulatory Model: P91F
Regulatory Type: P91F001
September 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.
© 2021-2022 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 Precision 5550...........................................................................................4
Chapter 2: Chassis overview......................................................................................................... 6
Left..........................................................................................................................................................................................6
Right....................................................................................................................................................................................... 6
Palmrest view....................................................................................................................................................................... 7
Display view...........................................................................................................................................................................8
Bottom view..........................................................................................................................................................................9
Chapter 3: Specifications of Precision 5550................................................................................ 10
Dimensions and weight..................................................................................................................................................... 10
Processors............................................................................................................................................................................ 11
Chipset.................................................................................................................................................................................. 11
Operating system................................................................................................................................................................11
Memory.................................................................................................................................................................................12
Ports and connectors........................................................................................................................................................12
Communications................................................................................................................................................................. 13
Audio..................................................................................................................................................................................... 13
Storage................................................................................................................................................................................. 14
Media-card reader............................................................................................................................................................. 14
Keyboard.............................................................................................................................................................................. 14
Camera................................................................................................................................................................................. 15
Touchpad............................................................................................................................................................................. 15
Touchpad gestures...................................................................................................................................................... 16
Power adapter.................................................................................................................................................................... 16
Battery.................................................................................................................................................................................. 16
Display................................................................................................................................................................................... 17
Fingerprint reader.............................................................................................................................................................. 18
Video..................................................................................................................................................................................... 18
Computer environment.....................................................................................................................................................19
Chapter 4: Dell low blue light display........................................................................................... 20
Chapter 5: Keyboard shortcuts of Precision 5550........................................................................ 21
Chapter 6: Getting help and contacting Dell................................................................................ 23
Contents
Contents 3

Set up your Precision 5550
About this task
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Steps
1. Connect the power adapter to a power source and to either of the USB Type-C port with Power Delivery. Then press the
power button on your computer.
NOTE: You can charge your system by connecting the power adapter to one of the Thunderbolt 3 (USB Type-C) ports
that are located on the left side of your computer or to the USB 3.2 Gen 2 (Type-C) port located on the right side of
your computer.
NOTE: The battery may go into power-saving mode during shipment to conserve charge on the battery. Ensure that the
power adapter is connected to your computer when it is turned on for the first time.
2. Complete the operating system setup.
Table 1. Operating system setup
Operating system Setup instructions
Windows
Follow the on-screen instructions to complete the setup:
●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.
1
4 Set up your Precision 5550

Table 1. Operating system setup (continued)
Operating system Setup instructions
●On the Support and Protection screen, enter your contact details.
Ubuntu
Follow the on-screen instructions to complete the setup. For more information about
installing and configuring Ubuntu, see the knowledge base article https://www.dell.com/
support/kbdoc/000131676/how-to-configure-ubuntu-linux-after-it-s-first-installed-on-your-dell-pc
at https://www.dell.com/support.
NOTE: All Dell apps are not available on Ubuntu.
3. Locate and use Dell apps from the Windows Start menu—Recommended.
Table 2. Locate Dell apps
Resources Description
Dell Product Registration
Register your computer with Dell.
Dell Help & Support
Access help and support for your computer.
Dell SupportAssist Pre-boot System Performance Check
Dell SupportAssist Preboot System Performance Check is the smart technology that keeps your
computer running at its best by optimizing settings, detecting issues, removing viruses and
notifies when you must make computer updates. Dell SupportAssist Pre-boot System Performance
Check proactively checks the health of your computer hardware and software. When an issue is
detected, the necessary computer state information is sent to Dell to begin troubleshooting. Dell
SupportAssist Pre-boot System Performance Check is pre-installed on most of the Dell devices
running Windows operating system. For more information, see Dell SupportAssist Pre-boot System
Performance Check for Home PCs User Guide on https://www.dell.com/serviceabilitytools.
NOTE: In Dell SupportAssist Pre-boot System Performance Check, click the warranty expiry
date to renew or upgrade your warranty.
Dell Update
Dell Update performs critical fixes and updates latest available device on your computer.
For more information about using Dell Update, see the knowledge base article https://
www.dell.com/support/kbdoc/en-in/000149088/dell-update-overview-and-common-questions at
https://www.dell.com/support/home/.
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 https://www.dell.com/support/kbdoc/000128904/how-do-i-use-dell-digital-delivery at
https://www.dell.com/support/home/.
Set up your Precision 5550 5

Chassis overview
Topics:
•Left
•Right
•Palmrest view
•Display view
•Bottom view
Left
1. Wedge-shaped security slot
2. USB 3.2 Gen 2 Type-C port with Thunderbolt 3 (Power Delivery) (2)
Right
1. USB 3.2 Gen 2 Type-C Display port
2. SD-card slot
3. Universal Audio port
2
6 Chassis overview

Palmrest view
1. Left speaker
2. Touchpad
3. Left-click area
4. Right-click area
5. Right speaker
6. Power button with fingerprint reader
7. Microphones (2)
Chassis overview 7

Display view
1. Infrared emitter
2. Ambient-light sensor
3. RGB-infrared camera
4. Camera-status light
5. Infrared emitter
6. Battery-status light
8Chassis overview

Bottom view
1. Left woofer
2. Service Tag label
3. Right woofer
Chassis overview 9

Specifications of Precision 5550
Topics:
•Dimensions and weight
•Processors
•Chipset
•Operating system
•Memory
•Ports and connectors
•Communications
•Audio
•Storage
•Media-card reader
•Keyboard
•Camera
•Touchpad
•Power adapter
•Battery
•Display
•Fingerprint reader
•Video
•Computer environment
Dimensions and weight
Table 3. Dimensions and weight
Description Values
Height:
Front 7.70 mm (0.30 in.)
Rear 11.65 mm (0.45 in.)
Width 344.40 mm (13.56 in.)
Depth 230.30 mm (9.07 in.)
Weight (maximum) 4.51 lb (2.05 Kg)
NOTE: The weight of your computer depends on the configuration
ordered and the manufacturing variability.
3
10 Specifications of Precision 5550

Processors
Table 4. Processors
Descripti
on
Values
Processors 10th Generation
Intel Core
i5-10400H
10th Generation
Intel Core
i7-10750H
10th Generation
Intel Core
i7-10850H
10th Generation
Intel Core
i7-10875H
10th Generation
Intel Core
i9-10885H
10th Generation
Intel Xeon
W-10855M
Wattage 45 W 45 W 45 W 45 W 45 W 45 W
Core count 4 6 6 8 8 6
Thread
count
8 12 12 16 16 12
Speed 2.60 GHz to
4.60 GHz
2.60 GHz to 5.0
GHz
2.70 GHz to 5.1
GHz
2.30 GHz to 5.10
GHz
2.40 GHz to 5.30
GHz
2.40 GHz to 5.30
GHz
Cache 8 MB 12 MB 12 MB 16 MB 16 MB 12 MB
Integrated
graphics
Intel UHD 630
Graphics
Intel UHD 630
Graphics
Intel UHD 630
Graphics
Intel UHD 630
Graphics
Intel UHD P630
Graphics
Intel UHD P630
Graphics
Chipset
The following table lists the details of the chipset supported by your Latitude 5320.
Table 5. Chipset
Description Values
Chipset WM490
Processor 10th Generation Intel Core i5/i7/i9 and Xeon W
DRAM bus width 64-bit
Flash EPROM 32 MB
PCIe bus Up to Gen 3.0
Operating system
Your Precision 5550 supports the following operating systems:
●Windows 10 Home (64-bit)
●Windows 10 Professional (64-bit)
●Windows 10 Pro for Workstations
●Windows 10 Pro Education
●Windows 10 IoT Enterprise (64-bit)
●Ubuntu 18.04 SP1
●Red Hat®Enterprise Linux®8.2 (Certification Only)
Specifications of Precision 5550 11

Memory
The following table lists the memory specifications of your Precision 5550:
Table 6. Memory specifications
Description Values
Slots Two-SODIMM slots
Type Dual-channel DDR4, ECC
Speed 2666 MHz, 3200 MHz
Maximum memory 64 GB
Minimum memory 8 GB
Memory size per slot 8 GB, 16 GB, 32 GB
Configurations supported ●8 GB, 1 x 8 GB, DDR4, 3200 MHz, dual-channel
●16 GB, 2 x 8 GB, DDR4, 3200 MHz, dual-channel
●32 GB, 2 x16 GB, DDR4, 3200 MHz, dual-channel
●64 GB, 2 x 32 GB, DDR4, 3200 MHz, dual-channel
●8 GB, 1 x 8 GB, DDR4, ECC, 2666 MHz, dual-channel
●16 GB, 2 x 8 GB, DDR4, ECC, 2666 MHz, dual-channel
●32 GB, 2 x 16 GB, DDR4, ECC, 2666 MHz, dual-channel
Ports and connectors
Table 7. External ports and connectors
External:
USB ●Two USB 3.2 Gen 2 Type-C port with Thunderbolt 3
(Power Delivery)
●One USB 3.2 Gen 2 Type-C Display port
Audio One Universal Audio port
Video USB Type-C to DisplayPort adapter (sold separately)
Media card reader One SD 3.0/4.0/6.0 card
Docking port Not supported
Power adapter port USB Type-C port
NOTE: Connect the power adaptor (USB Type-C) to only
one of the three USB Type-C ports.
Security One wedge-shaped security slot
Table 8. Internal ports and connectors
Internal:
M.2 Two M.2 2230/2280 slot for solid-state drives
12 Specifications of Precision 5550

Table 8. Internal ports and connectors
Internal:
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article
000144170.
Communications
Wireless module
Table 9. Wireless module specifications
Description Values
Model number Intel Wi-Fi 6 AX201
Transfer rate Up to 2400 Mbps
Frequency bands supported 2.4 GHz/5 GHz
Wireless standards ●Wi-Fi 802.11a/b/g
●Wi-Fi 4 (WiFi 802.11n)
●Wi-Fi 5 (WiFi 802.11ac)
●Wi-Fi 6 (WiFi 802.11ax)
Encryption ●64-bit/128-bit WEP
●AES-CCMP
●TKIP
Bluetooth Bluetooth 5.1
Audio
Table 10. Audio specifications
Description Values
Controller Realtek ALC3281-CG
Stereo conversion Supported
Internal interface High definition audio interface
External interface Universal Audio Jack
Speakers 2-way speaker
Internal speaker amplifier Supported
External volume controls Keyboard shortcut controls
Speaker output:
Average 4 W
Peak 5 W
Subwoofer output Supported
Specifications of Precision 5550 13

Table 10. Audio specifications (continued)
Description Values
Microphone Digital-array microphones
Storage
Your computer supports the following configurations:
●Two M.2 2280 or M.2 2230 solid-state drive
●Supports RAID 0 and RAID 1
The primary drive of your computer varies with the storage configuration. For computers:
●With 2 M.2 drives SSD1 is the primary drive
Table 11. Storage specifications
Storage type Interface type Capacity
Up to two M.2 2230 or 2280 solid-state drive PCIe Gen3.0x4 NVMe, up to 32 Gbps Up to 2 TB
Media-card reader
Table 12. Media-card reader specifications
Description Values
Type One SD 3.0/4.0/6.0 card slot
Cards supported ●Secure Digital (SD)
●Secure Digital High Capacity (SDHC)
●Secure Digital eXtended Capacity (SDXC)
Keyboard
The following table lists the keyboard specifications of your Precision 5550.
Table 13. Keyboard specifications
Description Values
Keyboard type Backlit keyboard
Keyboard layout QWERTY
Number of keys ●United States and Canada: 79 keys
●United Kingdom: 80 keys
●Japan: 83 keys
Keyboard size X=19.05 mm key pitch
Y=18.05 mm key pitch
Keyboard shortcuts Some keys on your keyboard have two symbols on them.
These keys can be used to type alternate characters or to
perform secondary functions. To type the alternate character,
press Shift and the desired key. To perform secondary
functions, press Fn and the desired key.
14 Specifications of Precision 5550

Table 13. Keyboard specifications (continued)
Description Values
NOTE: You can define the primary behavior of the
function keys (F1–F12) changing Function Key Behavior
in BIOS setup program.
Keyboard shortcuts
Camera
Table 14. Camera specifications
Description Values
Number of cameras One
Type RGB HD camera/Infrared camera
Location Front camera
Sensor type CMOS sensor technology
Resolution
Camera
Still image 0.92 megapixel
Video 1280 x 720 (HD) at 30 fps
Infrared camera
Still image 0.2 megapixel
Video 576 x 360 at 15 fps
Diagonal viewing angle
Camera 78.5 degrees
Infrared camera 78.5 degrees
Touchpad
Move your finger on the touchpad to move the mouse pointer. Tap to left-click and two fingers tap to right-click.
NOTE: The top and the sides of the touchpad—8.20 mm (0.32 in.) from the edges—are disabled. This prevents
unintended movements of the mouse pointer when using the keyboard.
NOTE: The touchpad area of the computer is large and your palms may inadvertently touch the touchpad corners when the
touchpad is in use. To prevent this, the physical button and the corners of the touchpad ( 1 cm x 1 cm or 0.39 in. x 0.39 in.)
will be ignored and disabled if other touches are detected outside of these corners.
Table 15. Touchpad specifications
Description Values
Resolution:
Horizontal 4655
Specifications of Precision 5550 15

Table 15. Touchpad specifications (continued)
Description Values
Vertical 2731
Dimensions:
Horizontal 150 mm
Vertical 90 mm
Touchpad gestures
For more information about touchpad gestures for Windows, see the Microsoft knowledge base article 4027871 at
support.microsoft.com.
Power adapter
Table 16. Power adapter specifications
Description Values
Type 90 W USB-C (UMA) 130 W USB-C (Discrete)
Diameter Type-C connector Type-C connector
Input voltage 100 VAC-240 VAC 100 VAC-240 VAC
Input frequency 50 Hz-60 Hz 50 Hz-60 Hz
Input current (maximum) 1.5 A 1.8 A
Output current (continuous) ●20 V/4.5 A (Continuous)
●15 V/3 A (Continuous)
●9.0 V/3 A (Continuous)
●5.0 V/3 A (Continuous)
●20 V/6.5 A (Continuous)
●5.0 V/1 A (Continuous)
Rated output voltage 20 VDC/15 VDC/9 VDC/5 VDC 20 VDC/5 VDC
Temperature range:
Operating 0 °C to 40 °C (32 °F to 104 °F) 0 °C to 40 °C (32 °F to 104 °F)
Storage -40 °C to 70 °C (–40 °F to 158 °F) –40 °C to 70 °C (–40 °F to 158 °F)
Battery
Table 17. Battery specifications
Description Values
Type 3-cell lithium-ion 56 WHr 6-cell lithium-ion 86 WHr
Voltage 11.4 VDC 11.4 VDC
Weight (maximum) 0.255 kg 0.340 kg
Dimensions:
Height 7.56 mm 7.56 mm
Width 77.7 mm 77.7 mm
16 Specifications of Precision 5550

Table 17. Battery specifications (continued)
Description Values
Depth 295.2 mm 295.2 mm
Temperature range:
Operating Charge: 0 °C to 45 °C (32 °F to 113 °F)
Discharge:0 °C to 60 °C (32 °F to 149
°F)
Charge: 0 °C to 45 °C (32 °F to 113 °F)
Discharge:0 °C to 60 °C (32 °F to 149
°F)
Storage –20 °C to 60 °C (4 °F to 149 °F) –20 °C to 60 °C (4 °F to 149 °F)
Operating time Varies depending on operating conditions
and can significantly reduce under certain
power-intensive conditions.
Varies depending on operating
conditions and can significantly
reduce under certain power-intensive
conditions.
Charging time (approximate) 2 hr ( Express charge ), 3 hr ( Standard
charge) (when the computer is off)
NOTE: Control the charging time,
duration, start and end time, and so
on using the Dell Power Manager
application. For more information
on the Dell Power Manager see
www.dell.com/
2 hr ( Express charge ), 3 hr ( Standard
charge) (when the computer is off)
NOTE: Control the charging time,
duration, start and end time, and so
on using the Dell Power Manager
application. For more information
on the Dell Power Manager see
www.dell.com/
Coin-cell battery Not supported Not supported
Operating time Varies depending on operating conditions
and can significantly reduce under certain
power-intensive conditions.
Varies depending on operating
conditions and can significantly
reduce under certain power-intensive
conditions.
Display
Table 18. Display specifications
Description Values
Type Full High Definition (FHD+), Non-touch Ultra High Definition (UHD+), touch
Panel technology Wide Viewing Angle (WVA) Wide Viewing Angle (WVA)
Luminance (typical) 500 Nits 500 Nits
Dimensions (Active area):
Height 336.38 mm 336.38 mm
Width 210.24 mm 210.24 mm
Diagonal 15.6'' 15.6''
Native resolution 1920 x 1200 3840 x 2400
Megapixels 2.3 megapixels 9.2 megapixels
Color gamut sRGB 100% min Adobe 100% min; DCI-P3 94% typical,
90% minimum
Specifications of Precision 5550 17

Table 18. Display specifications (continued)
Description Values
Pixels per inch (PPI) 145 290
Contrast ratio (min) 1650:1 1600:1
Response time (max) 35 ms 35 ms
Refresh rate 60 Hz 60 Hz
Horizontal view angle 85 +/- degrees 85 +/- degrees
Vertical view angle 85 +/- degrees 85 +/- degrees
Pixel pitch 0.1752 mm 0.0876 mm
Power consumption (maximum) 4.41 W 10.4 W
Anti-glare vs glossy finish Anti-Glare Anti-Reflection
Touch options No Yes
Fingerprint reader
Table 19. Fingerprint reader specifications
Description Values
Sensor technology Capacitive
Sensor resolution 500 dpi
Sensor area 5.49 mm x 4.47 mm
Sensor pixel size 108 x 88
Video
Table 20. Discrete graphics specifications
Discrete graphics
Controller External display support Memory size Memory Type
NVIDIA Quadro T1000 N/A 4 GB GDDR6
NVIDIA Quadro T2000 N/A 4 GB GDDR6
Table 21. Integrated graphics specifications
Integrated graphics
Controller External display support Memory size Processor
Intel UHD Graphics 630 Type-C Shared system memory 10th Generation Intel
Core i5/i7/i9
Intel UHD Graphics P630 Type-C Shared system memory Intel Xeon
18 Specifications of Precision 5550

Computer environment
Airborne contaminant level: G1 as defined by ISA-S71.04-1985
Table 22. Computer environment
Description Operating Storage
Temperature range 0°C to 35°C (32°F to 95°F) -40°C to 65°C (-40°F to 149°F)
Relative humidity (maximum) 10% to 90% (non-condensing) 0% to 95% (non-condensing)
Vibration (maximum)*0.66 GRMS 1.30 GRMS
Shock (maximum) 110 G† 160 G†
Altitude (maximum) -15.2 m to 3048 m (4.64 ft to 5518.4 ft) -15.2 m to 10668 m (4.64 ft to 19234.4
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 Precision 5550 19

Dell low blue light display
WARNING: Prolonged exposure to blue light from the display may lead to long-term effects such as eye strain,
eye fatigue, or damage to the eyes.
The ComfortView feature on Dell laptops and displays is designed to minimize blue light emitted from the display for better eye
comfort.
To reduce the risk of eye strain after looking at the laptop's display for an extended period of time, it is recommended that you:
1. Set the laptop's display at a comfortable viewing distance between 20 inches and 28 inches (50 cm and 70 cm) from your
eyes.
2. Blink frequently to moisten your eyes, or wet your eyes with water.
3. Take a break for 20 minutes every two hours.
4. Look away from your display, and gaze at a distant object at 20 ft (609.60 cm) away for at least 20 seconds during each
break.
4
20 Dell low blue light display