Dell 15 DC15255: руководство по обслуживанию

Dimensions and weight

The following table lists the height, width, depth, and weight of your Dell 15 DC15255.

Table 1. Dimensions and weightThe following table lists the height, width, depth, and weight of your Dell 15 DC15255.
Description	Values
Height:
Front height	16.96 mm (0.67 in.)
Rear height	18.99 mm (0.75 in.)
Width	358.50 mm (14.11 in.)
Depth	235.56 mm (9.27 in.)
Weight NOTE:The weight of your computer depends on the configuration that you ordered.	1.90 kg (4.19 lb)

Processor

The following table lists the details of the processors that are supported on your Dell 15 DC15255.

Table 1. Processor The following table lists the details of the processors that are supported in your Dell 15 DC15255.
Description	Option one	Option two	Option three	Option four
Type	AMD Ryzen 7 7730U	AMD Ryzen 5 7530U	AMD Ryzen 5 7520U	AMD Ryzen 3 7320U
Wattage	15 W	15 W	15 W	15 W
Core count	8	6	4	4
Thread count	16	12	8	8
Speed	Up to 4.50 GHz Max Boost Clock	Up to 4.50 GHz Max Boost Clock	Up to 4.30 GHz Max Boost Clock,	Up to 4.10 GHz Max Boost Clock
Cache	20 MB	19 MB	4 MB	4 MB
Integrated graphics	AMD Radeon Graphics	AMD Radeon Graphics	AMD Radeon Graphics	AMD Radeon Graphics

Chipset

The following table lists the details of the chipset that is supported by your Dell 15 DC15255.

Table 1. Chipset The following table lists the details of the chipset that is supported by your Dell 15 DC15255.
Description	Values
Chipset	Integrated
Processor	AMD Ryzen series
DRAM bus width	64-bit
Flash EPROM	16 MB
PCIe bus	Up to Gen3

Operating system

Your Dell 15 DC15255 supports the following operating systems:

Windows 11 Pro
Windows 11 Pro National Education
Windows 11 Home
Windows 11 Home (S Mode)
Ubuntu Linux 22.04 LTS, 64-bit

Memory

The following table lists the memory specifications that are supported by your Dell 15 DC15255.

Table 1. Memory specificationsThe following table lists the memory specifications of your computer.
Description	Values
Memory slots	SoDIMM slot (for AMD Ryzen 5 7530U/AMD Ryzen 7 7730U) Onboard memory (for AMD Ryzen 3 7320U/AMD Ryzen 5 7520U)
Memory type	DDR4 LPDDR5 (onboard) LPDDR5x (onboard)
Memory speed	3200 MT/s (for DDR4) 5500 MT/s (for LPDDR5) 5500 MT/s (for LPDDR5x )
Maximum memory configuration	8 GB (onboard) 16 GB (onboard) 16 GB
Minimum memory configuration	8 GB
Memory size per slot	8 GB or 16 GB
Memory configurations supported	For AMD Ryzen 5 7530U/AMD Ryzen 7 7730U: 8 GB: 1 x 8 GB, DDR4, 3200 MT/s, single-channel 16 GB: 1 x 16 GB, DDR4, 3200 MT/s, single-channel For AMD Ryzen 3 7320U/AMD Ryzen 5 7520U: 8 GB: 1 x 8 GB, LPDDR5, 5500 MT/s (onboard) For AMD Ryzen 5 7520U: 16 GB: 1 x 16 GB, LPDDR5x, 5500 MT/s (onboard)

External ports and slots

The following table lists the external ports and slots on your Dell 15 DC15255.

Table 1. External ports and slots
The following table lists ports and connectors available on Dell 15 DC15255.
Description	Values
USB ports	One USB 3.2 Gen 1 (5 Gbps) port One USB 3.2 Gen 1 (5 Gbps) Type-C port One USB 2.0 (480 Mbps) port
Audio port	One Universal Audio port
Video port(s)	One HDMI 1.4 port NOTE:The maximum resolution supported by HDMI port is 1920 x 1080 at 60 Hz.
Media-card reader	One SD-card slot
Power-adapter port	One 65 W AC adapter, 4.50 mm barrel
Security-cable slot	None

Internal slots

The following table lists the internal slots of your Dell 15 DC15255.

Table 1. Internal slotsThe following table lists the internal slots on your Dell 15 DC15255.
Description	Values
M.2	One M.2 2230 slot for Wi-Fi and Bluetooth combo card One M.2 2230 slot for solid state drive NOTE:To learn more about the features of different types of M.2 cards, search Dell Support Site.

Wireless module

The following table lists the Wireless Local Area Network (WLAN) modules that are supported on your Dell 15 DC15255.

Table 1. Wireless module specifications
The following table provides the wireless module specifications of Dell 15 DC15255.
Description	Option one	Option two
Model number	Realtek RTL8821CE	Realtek RTL8852BE
Transfer rate	Up to 433 Mbps	Up to 1201 Mbps
Frequency bands supported	2.4 GHz/5 GHz	2.4 GHz/5 GHz
Wireless standards	Wi-Fi 802.11 a/b/g Wi-Fi 4 (WiFi 802.11n) Wi-Fi 5 (WiFi 802.11ac)	Wi-Fi 802.11 a/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	64-bit/128-bit WEP AES-CCMP TKIP
Bluetooth wireless card NOTE:The functionality of the Bluetooth wireless card may vary based on the operating system.	Bluetooth 5.0	Bluetooth 5.3

Audio

The following table lists the audio specifications of your Dell 15 DC15255.

Table 1. Audio specifications
The following table provides the detailed audio specifications of Dell 15 DC15255.
Description		Values
Audio controller		Realtek ALC3204 NOTE:Realtek ALC3204 is only applicable for systems with the following processors: AMD Ryzen3 7320U or AMD Ryzen5 7520U.
Stereo conversion		Supported
Internal audio interface		High definition audio interface
External audio interface		One Universal Audio port
Number of speakers		Two
Internal-speaker amplifier		Not supported
External volume controls		Keyboard shortcut controls
Speaker output:
Average		2 W x 2 = 4 W
Peak		2.5 W x 2 = 5 W
Microphone		Single-digit microphone

Storage

This section lists the storage options on your Dell 15 DC15255.

Your Dell 15 DC15255 supports one of the following storage configurations: One M.2 2230 solid state drive .

NOTE:The M.2 2230 solid state drive is the primary storage drive of your computer.

Table 1. Storage specifications
The following table provides the different storage options available on Dell 15 DC15255.
Storage type	Interface type	Capacity
M.2 2230 solid state drive	PCIe NVMe	Up to 1 TB

Media-card reader

The following table provides the specification of media cards that are supported by your Dell 15 DC15255.

Table 1. Media-card reader specificationsThe following table provides the specification of media cards that are supported by your Dell 15 DC15255.
Description	Values
Media-card slot type	One SD card slot (optional)
Media-cards supported	Secure Digital (SD) Secure Digital High Capacity (SDHC) Secure Digital Extended Capacity (SDXC)
NOTE:The maximum capacity of the media-card reader varies depending on the standard of the media card that is inserted in your computer.

Keyboard

The following table lists the keyboard specifications of your Dell 15 DC15255.

Table 1. Keyboard specifications
The following table provides the detailed keyboard specifications of Dell 15 DC15255.
Description	Values
Keyboard lighting technology	Standard backlit keyboard Standard nonbacklit keyboard
Keyboard layout	QWERTY
Number of keys	United States and Canada: 99 keys United Kingdom: 100 keys Japan: 103 keys
Key pitch	X = 18.70 mm Y = 18.05 mm
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. NOTE:You can define the primary behavior of the function keys (F1–F12) changing Function Key Behavior in BIOS setup program. For more information, see Keyboard shortcuts.

Keyboard function keys

The F1-F12 keys at the top of the keyboard are function keys. By default, these keys are used to perform specific functions defined by the software application in use.

You can run the secondary tasks that are indicated by the symbols on the function keys by pressing the function key with Fn, for example, Fn and F1. See the table below for the list of secondary tasks and the key combinations to run them.

NOTE:Keyboard characters may differ depending on the keyboard language configuration. Keys that are used for tasks remain the same, regardless of the keyboard language.

NOTE:You can define the primary behavior of function keys in the Function Key Behavior menu of the BIOS setup program.

Table 1. List of keyboard shortcuts
The following table lists the keyboard shortcuts and their descriptions.
Function key	Primary behavior
F1	Mute audio
F2	Decrease volume
F3	Increase volume
F4	Play/Pause
F5	Toggle keyboard backlight (optional)
F6	Decrease brightness
F7	Increase brightness
F8	Switch to external display
F10	Print screen
F11	Home
F12	End

The Fn key is also used with selected keys on the keyboard to invoke other secondary functions.

Table 2. Secondary behaviorThe following table lists the secondary behavior of each key with the Function (Fn) key.
Function key	Secondary behavior
Fn + F1 to F12	Operating system or application-specific behavior
Fn + PrtScr	F10 key
Fn + B	Pause/Break
Fn + Insert	Sleep
Fn + S	Toggle scroll lock
Fn + H	Toggle between power and battery-status light/hard-drive activity light
Fn + R	System request
Fn + Ctrl	Open application menu
Fn + Esc	Toggle Fn-key lock
Fn + PgUp	Scroll up the document or page
Fn + PgDn	Scroll down the document or page
Fn + Home	F11 key
Fn + End	F12 key

Keys with alternate characters

There are other keys on your keyboard with alternate characters. The symbols that are shown at the bottom of these keys are the main characters that are displayed when the key is pressed; the symbols that are shown at the top of these keys are displayed when the key is pressed with the shift key. For example, if you press 2, 2 is displayed; if you press Shift and 2, @ is displayed.

Camera

The following table lists the camera specifications of your Dell 15 DC15255.

Table 1. Camera specifications
The following table provides the detailed camera specifications of Dell 15 DC15255.
Description			Values
Number of cameras			One
Camera type			HD RGB camera
Camera location			Front
Camera sensor type			CMOS sensor technology
Camera resolution:
Still image			0.92 megapixel
Video			1280 x 720 (HD) at 30 fps
Diagonal viewing angle			83.50 degrees

Touchpad

The following table lists the touchpad specifications of your Dell 15 DC15255.

Table 1. Touchpad specifications
The following table provides the detailed touchpad specifications of Dell 15 DC15255.
Description		Values
Touchpad resolution:
Horizontal		305 dpi
Vertical		305 dpi
Touchpad dimensions:
Horizontal		115 mm (4.52 in.)
Vertical		80 mm (3.15 in.)
Touchpad gestures		For more information about the touchpad gestures available on Windows, search Microsoft Support Site.

Power adapter

The following table lists the power adapter specifications of your Dell 15 DC15255.

Table 1. Power-adapter specifications
The following table provides the detailed power adapter specifications of Dell 15 DC15255.
Description	Values
Type	65 W DC-in adapter, 4.50 mm barrel, E4
Power-adapter dimensions:
Height	108 mm (4.25 in.)
Width	47 mm (1.85 in.)
Depth	28 mm (1.10 in.)
Input voltage	100 VAC–240 VAC
Input frequency	50 Hz–60 Hz
Input current (maximum)	1.60 A/1.70 A
Output current (continuous)	3.34 A
Rated output voltage	19.50 VDC
Temperature range:
Operating	0°C to 40°C (32°F to 104°F)
Storage	-40°C to 70°C (-40°F to 158°F)
CAUTION:Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components.

Power adapter requirements of Dell 15 DC15255

NOTE:If you did not purchase the Dell-branded power adapter that is recommended for your computer, ensure that the power adapter you use meets the following requirements.

The following table lists the power adapter requirements for your Dell 15 DC15255.

Table 1. Power adapter requirementsThe following table lists the power adapter requirements for your Dell 15 DC15255.
Description	Value
Power that is required from a power adapter to achieve optimal performance	60 W
Power that charges the computer at a slower speed NOTE:A warning message may appear informing you about the use of a lower-powered adapter and slower charging speed.	Less than 60 W
Minimum power that is required from a power adapter to operate the computer and charge the battery NOTE:A warning message appears informing you about the use of a lower-powered adapter and slower charging speed.	27 W
USB Power Delivery (PD) fast charging	Supported
ExpressCharge mode	Supported NOTE:Ensure that the computer with a 42 Wh battery is connected to a 65 W power adapter for this feature to be supported.

Battery

The following table lists the battery specifications of your Dell 15 DC15255.

Table 1. Battery specifications
The following table provides the detailed battery specifications of Dell 15 DC15255.
Description	Option one	Option two
Battery type	3-cell, 41 Wh, Lithium Ion Polymer	4-cell, 54 Wh, Lithium Ion Polymer
Battery voltage	11.25 VDC	15 VDC
Battery weight (maximum)	0.18 kg (0.40 lb)	0.24 kg (0.53 lb)
Battery dimensions:
Height	5.75 mm (0.23 in.)	5.75 mm (0.23 in.)
Width	206.40 mm (8.13 in.)	271.90 mm (10.66 in.)
Depth	82 mm (3.22 in.)	82 mm (3.22 in.)
Temperature range:
Operating	Charge: 0°C to 45°C (32°F to 113°F) Discharge: 0°C to 70°C (32°F to 158°F)	Charge: 0°C to 45°C (32°F to 113°F) Discharge: 0°C to 70°C (32°F to 158°F)
Storage	-20°C to 60°C (-4°F to 140°F)	-20°C to 60°C (-4°F to 140°F)
Battery 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
Battery charging time (approximate) NOTE:You can control the charging time, duration, start and end time, and so on, using the settings on the MyDell (replaced with Dell Optimizer) application (Power option). For more information about MyDell application, search Dell Support Site.	3 hr (Standard charge) 2 hr (Express charge)	3 hr (Standard charge) 2 hr (Express charge)
Coin-cell battery	N/A	N/A
CAUTION:Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components. CAUTION:Dell Technologies recommends that you charge the battery regularly for optimal power consumption.

Display

The following table lists the display specifications of your Dell 15 DC15255.

Table 1. Display specificationsThe following table provides the detailed display specifications of your Dell 15 DC15255.
Description	Option one	Option two	Option three
Display type	15.6" Full High Definition (FHD)	15.6" Full High Definition (FHD)	15.6” Full High Definition (FHD)
Touch options	No	Yes	No
Display-panel technology	In-Plane Switching (IPS)	In-Plane Switching (IPS)	In-Plane Switching (IPS)
Display-panel dimensions (active area):
Height	193.59 mm (7.62 in.)	193.59 mm (7.62 in.)	193.59 mm (7.62 in.)
Width	344.16 mm (13.55 in.)	344.16 mm (13.55 in.)	344.16 mm (13.55 in.)
Diagonal	394.87 mm (15.55 in.)	394.87 mm (15.55 in.)	394.87 mm (15.55 in.)
Display-panel native resolution	1920 x 1080	1920 x 1080	1920 x 1080
Luminance (typical)	250 nits	220 nits	300 nits
Megapixels	2.07	2.07	2.07
Color gamut	45% NTSC	45% NTSC	45% NTSC
Pixels Per Inch (PPI)	141	141	141
Contrast ratio (typical)	600:1	700:1	800:1
Response time (maximum)	35 ms	35 ms	35 ms
Refresh rate	120 Hz	60 Hz	60 Hz
Horizontal view angle	80 +/- degrees (minimum)	80 +/- degrees (minimum)	80 +/- degrees (minimum)
Vertical view angle	80 +/- degrees (minimum)	80 +/- degrees (minimum)	80 +/- degrees (minimum)
Pixel pitch	0.17925 mm x 0.17925 mm	0.17925 mm x 0.17925 mm	0.17925 x 0.17925 mm
Power consumption (maximum)	5.25 W	4.10 W	5.20 W
Anti-glare vs glossy finish	Anti-Glare	Anti-Glare	Anti-glare

Fingerprint reader (optional)

The following table lists the specifications of the optional fingerprint-reader of your Dell 15 DC15255.

Table 1. Fingerprint reader specifications
The following table provides the specifications of fingerprint reader of Dell 15 DC15255.
Description	Values
Sensor technology	Capacitive
Sensor resolution	500 dpi
Sensor pixel size	108 x 88

Sensors

The following table lists the sensors of your Dell 15 DC15255.

Table 1. Sensor The following table lists the sensor of your Dell 15 DC15255.
Sensor support
Accelerometer

GPU—Integrated

The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Dell 15 DC15255.

Table 1. GPU—Integrated
The following table provides the detailed integrated graphics specifications of Dell 15 DC15255.
Controller	Memory size	Processor
AMD Radeon Graphics	Shared system memory	AMD Ryzen 3 7320U/AMD Ryzen 5 7520U/AMD Ryzen 5 7530U/AMD Ryzen 7 7730U

External display support

The following table lists the external display support for your Dell 15 DC15255.

Table 1. External display supportThe following table lists the external display support for your Dell 15 DC15255.
Graphics card	Supported external displays with laptop display enabled	Supported external displays with laptop display disabled
AMD Radeon Graphics	1	1
NOTE:For more information about external display support, see the External Display Connection Guide on Dell Support Site.

Hardware security

The following table lists the hardware security of your Dell 15 DC15255.

Table 1. Hardware security The following table provides the hardware security details on your Dell 15 DC15255.
Hardware security
Windows Hello - Fingerprint reader (optional)
Trusted Platform Module (TPM) 2.0

Operating and storage environment

This table lists the operating and storage specifications of your Dell 15 DC15255.

Airborne contaminant level: G1 as defined by ISA-S71.04-1985

Table 1. Computer environment
The following table lists the operating and storage environment conditions of Dell 15 DC15255.
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 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)
CAUTION:Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components.

^{* Measured using a random vibration spectrum that simulates the user environment.}

^{† Measured using a 2 ms half-sine pulse.}

Dell support policy

For information about Dell support policy, search Dell Support Site.

ComfortView

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.

Blue light is a color in the light spectrum which has a short wavelength and high energy. Chronic exposure to blue light, particularly from digital sources, may disrupt sleep patterns and cause long-term effects such as eye strain, eye fatigue, or damage to the eyes.

Dell ComfortView software technology reduces harmful blue light emissions to make extended screen time easy on your eyes.

ComfortView mode can be enabled and configured using the Dell CinemaColor application.

ComfortView mode complies with TÜV Rheinland's requirement for low blue light displays.

To reduce the risk of eye strain, it is also recommended that you:

Position the display at a comfortable viewing distance between 20 and 28 inches (50 cm and 70 cm) from your eyes.
Blink frequently to moisten your eyes, wet your eyes with water, or apply suitable eye drops.
Take an extended break for 20 minutes every two hours.
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.

Dell Optimizer

Dell Optimizer is an AI-based software application that allows you to customize your computer settings for power and battery, and more.

For Dell 15 DC15255 with Dell Optimizer, you can:

Extend the battery life of your computer with Intelligent Battery Extender and Dynamic Charge.
Tune the performance, power consumption, cooling, and fan noise with selectable thermal modes.
Access and secure your computer depending on your physical presence.
Download and redeem the apps that are purchased with your computer.

For more information about configuring and using these features, search for Dell Optimizer at the Dell Support Site.