Dell Gaming S2421HGF User guide

Brand: Dell

Model: Gaming S2421HGF

Type: User guide

Dell S2421HGF Monitor

User’s Guide

Model: S2421HGF

Regulatory model: S2421HGFb

NOTE: A NOTE indicates important information that helps you make

better use of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss

of data if instructions are not followed.

WARNING: A WARNING indicates a potential for property damage,

personal injury, or death.

are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective

owners.

2020 - 05

Rev. A01

  │  3

Contents

Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Identifying parts and controls . . . . . . . . . . . . . . . . . . . . . . 9

Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Resolution specifications. . . . . . . . . . . . . . . . . . . . . . . . . 13

Supported video modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Preset display modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Power management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

LCD monitor quality and pixel policy . . . . . . . . . . . . . . . . 19

Ergonomics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Handling and moving your display . . . . . . . . . . . . . . . . . . 22

Maintenance guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Cleaning your monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Setting up the monitor . . . . . . . . . . . . . . . . . . . . . . 24

Connecting the stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Connecting your monitor . . . . . . . . . . . . . . . . . . . . . . . . . 27

4  │ 

Connecting the HDMI and power cables . . . . . . . . . . . . . . . . . . . . 27

Connecting the DisplayPort (DP to DP) cable (optional) and

power cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Organizing your cables. . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Securing your monitor using Kensington lock (optional) . 28

Removing the monitor stand . . . . . . . . . . . . . . . . . . . . . . 29

VESA wall mounting (optional) . . . . . . . . . . . . . . . . . . . . 29

Operating the monitor . . . . . . . . . . . . . . . . . . . . . . . 31

Power on the monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Using the joystick control . . . . . . . . . . . . . . . . . . . . . . . . 31

Using the rear-panel controls . . . . . . . . . . . . . . . . . . . . . 32

Accessing the menu system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

OSD warning message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Vertical extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Built-in diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Common problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Product specific problems . . . . . . . . . . . . . . . . . . . . . . . . 56

Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

FCC notices (U.S. only) and other regulatory

information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Contact Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Safety instructions  │  5

Safety instructions

CAUTION: Use of controls, adjustments, or procedures other than

those specified in this documentation may result in exposure to shock,

electrical hazards, and/or mechanical hazards.

• Place the monitor on a solid surface and handle it carefully. The screen is

fragile and can be damaged if dropped or hit sharply.

• Always be sure that your monitor is electrically rated to operate with the AC

power available in your location.

• Keep the monitor in room temperature. Excessive cold or hot conditions can

have an adverse effect on the liquid crystal of the display.

• Do not subject the monitor to severe vibration or high impact conditions. For

example, do not place the monitor inside a car trunk.

• Unplug the monitor when it is going to be left unused for an extended period

of time.

• To avoid electric shock, do not attempt to remove any cover or touch the

inside of the monitor.

6  │  About your monitor

About your monitor

Package contents

Your monitor ships with the components shown in the table below. If any

component is missing, contact Dell. For more information, see Contact Dell.

NOTE: Some items may be optional and may not ship with your monitor.

Some features may not be available in certain countries.

NOTE: If you are connecting a stand that you purchased from any other

source, follow the set up instructions that were included with the

stand.

Component image Component description

Display

Stand riser

Stand base

About your monitor  │  7

Power cable (varies by

country)

HDMI cable

• Quick Setup Guide

• Safety, Environmental,

and R

egulatory

Information

8  │  About your monitor

Product features

The Dell S2421HGF monitor has an active matrix, Thin-Film Transistor (TFT),

Liquid Crystal Display (LCD) and LED backlight. The monitor features include:

• 60.47 cm (23.8 in.) viewable area (measured diagonally).

1920 x 1080 (16:9) resolution, plus full-screen support for lower resolutions.

• Supports AMD FreeSync™ Premium, with a high refresh rate of 144 Hz and a

rapid response time of 1 ms gray to gray in Extreme mode*.

• Color gamut of 72% NTSC, CIE 1931 (72%), and CIE 1976 (83%).

• Digital connectivity with DisplayPort and HDMI.

• Tilt and height adjustment capabilities.

• Removable stand and Video Electronics Standards Association (VESA™)

100

mm mounting holes for flexible mounting solutions.

• Plug and play capability if supported by your system.

• On-Screen Display (OSD) adjustments for ease of set-up and screen

optimization.

• Power and OSD buttons lock.

• Security lock slot.

• Stand lock.

• 0.3 W standby power when in sleep mode.

• Optimize eye comfort with a flicker-free screen.

WARNING: The possible long-term effects of blue light emission from

the monitor may cause damage to the eyes, including eye fatigue,

digital eye strain, and so on. ComfortView feature is designed to reduce

the amount of blue light emitted from the monitor to optimize eye

comfort.

*The 1 ms gray-to-gray mode is achievable in the Extreme mode to reduce visible

motion blur and increased image responsiveness. However, this may introduce

some slight and noticeable visual artifacts into the image. As every system setup

and every gamer's needs are different, we recommend that users experiment with

the different modes to find the setting that is right for them.

About your monitor  │  9

Identifying parts and controls

Front view

Label Description Use

1 Power On/Off button (with

D indicator)

To turn the monitor on or off.

Side view

10  │  About your monitor

Back view

Back view without monitor stand Back view with monitor stand

Label Description Use

1 Joystick Use it to control the OSD menu.

2 Function buttons For more information, see Operating

the monitor.

3 VESA mounting holes (100 mm

x 10

0 mm - behind attached

VESA Cover)

Wall mount monitor using VESA-

compatible wall mount kit (100 mm x

100 mm).

4 Regulatory label Lists the regulatory approvals.

5 Stand release button Releases stand from the monitor.

6 Barcode, serial number, and

Service T

ag label

Refer to this label if you need to

contact Dell for technical support.

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.

7 Cable-management slot Use to organize cables by inserting

them

through the slot.

About your monitor  │  11

Bottom view

Bottom view without monitor stand

Label Description Use

1 Power connector Connect the power cable (shipped with your

nitor).

2 Security lock slot Secures the monitor with security lock

(

security lock not included).

3 Stand lock feature To lock the stand to the monitor using a M3 x 6

m screw (screw not included).

4 HDMI port (HDMI 1) Connect your computer with the HDMI cable

(

shipped with your monitor).

5 HDMI port (HDMI 2) Connect your computer with the HDMI cable

(

shipped with your monitor).

6 DisplayPort Connect your computer with the DisplayPort

cab

le.

7 Headphone out port Connect the headphones.

CAUTION: In

creasing the audio output beyond

50% on the volume control or equalizer may

increase the output voltage on the

headphones thereby increasing the sound

pressure levels.

12  │  About your monitor

Monitor specifications

Model S2421HGF

Screen type Active matrix - TFT LCD

Panel technology TN

Aspect ratio 16:9

Viewable image

Diagonal

Width (active area)

Height (active area)

Tot a l a re a

604.7 mm (23.8 in.)

527.0 mm (20.75 in.)

296.5 mm (12.10 in.)

156255.5 mm

(251.08 in.

)

Pixel pitch 0.2745 mm x 0.2745 mm

Pixel per inch (PPI) 93

Viewing angle

Vertical

Horizontal

160° (typical)

170° (typical)

Luminance output 350 cd/m² (typical)

Contrast ratio 1000 to 1 (typical)

Faceplate coating Haze 25%, 3H

Backlight White LED edgelight system

Response time 1 ms gray to gray in Extreme Mode*

2 ms gray to gray in Super Fast Mode

4 ms gray to gray in Fast Mode

*The 1 ms gray-to-gray mode is achievable in the

Extreme mode to reduce visible motion blur and

increased image responsiveness. However this may

introduce some slight and noticeable visual artifacts into

the image. As every system setup and every gamer's

needs are different, we recommend that users

experiment with the different modes to find the setting

that is right for them.

About your monitor  │  13

Resolution specifications

Horizontal scan range 30 kHz to 170 kHz (automatic)

Vertical scan range 48 Hz to 144 Hz (automatic)

Maximum preset resolution 1920 x 1080 at 144 Hz

Supported video modes

Video display capabilities (HDMI

& Disp

layPort)

480i, 480p, 576i, 576p, 720p, 1080i, 1080p

Color depth 16.7 million colors

Color gamut 72% NTSC, CIE 1931 (72%), and CIE 1976 (83%)

Connectivity • 1 x DisplayPort version 1.2

•2 x HDMI ports version 1.4

• 1 x Headphone out port

Border width (edge of monitor to active area)

Top

Left/Right

Bottom

5.4 mm

5.4 mm/5.4 mm

19.8 mm

Adjustability

Height adjustable stand

Ti l t

0 to 100 mm

-5° to 21°

Dell Display Manager

compa

tibility

Easy Arrange and other key features

Security Security lock slot (cable lock sold separately)

Model S2421HGF

14  │  About your monitor

Preset display modes

Display mode Horizontal

frequency

(kHz)

Vertical

frequency

(Hz)

Pixel

clock

(MHz)

Sync

polarity

(Horizontal

/Vertical)

VESA, 640 x 480

VESA, 720 x 400

VESA, 800 x 600

VESA, 1024 x 768

VESA, 1152 x 864

VESA, 1280 x 1024

VESA, 1920 x 1080

NOTE: This monitor supports AMD FreeSync™ Premium.

Electrical specifications

Video input signals HDMI 1.4/DisplayPort 1.2, 600 mV for each differential

ine, 100 Ω input impedance per differential pair

AC input voltage/

equency/current

100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 1 A

(typical)

Inrush current • 120 V: 30 A (Max.) at 0°C (cold start)

• 240 V: 60 A (Max.) at 0°C (cold start)

31.5 59.9 25.2 -/-

37.5 75.0 31.5 -/-

31.5 70.1 28.3 -/+

37.9 60.3 40.0 +/+

46.9 75.0 49.5 +/+

48.4 60.0 65.0 -/-

60.0 75.0 78.8 +/+

67.5 75.0 108.0 +/+

64.0 60.0 108.0 +/+

80.0 75.0 135.0 +/+

67.5 60.0 148.5 +/+

137.3 120.0 285.5 +/-

162.3 143.9 337.5 +/-

Mode

l S2421HGF

About your monitor  │  15

Physical characteristics

• Digital: HDMI, 19 pins

• Digital: DisplayPort, 20 pins (cable

t supplied)

NOTE: De

ll monitors are designed to work optimally with the video cables that

are shipped with your monitor. As Dell does not have control over the different

cable suppliers in the market, the type of material, connector and process used to

manufacture these cables, Dell does not guarantee video performance on cables

that are not shipped with your Dell monitor.

Height (extended) 451.6 mm (17.78 in.)

Height (compressed) 351.6 mm (13.84 in.)

Width 537.8 mm (21.17 in.)

Depth 189.4 mm (7.46 in.)

Height 321.6 mm (12.66 in.)

Width 537.8 mm (21.17 in.)

Depth 65.6 mm (2.58 in.)

Height (extended) 366.3 mm (14.42 in.)

Height (compressed) 319.0 mm (12.56 in.)

Width 221.6 mm (8

.72 in.)

Depth 189.4 mm (7.46 in.)

Weight with packaging 7.4 kg (1 6.25 l b)

Weight with stand assembly and cables 5.2 kg (11.39 lb)

Weight without stand assembly (For

all mount or VESA mount

considerations - no cables)

3.4 kg (7.44 lb)

Weight of stand assembly 1.5 kg (3.37 lb)

Model S2421HGF

Signa

l cable type

Dimensions (with stand)

Dimensions (without stand)

Stand dimensions

Weight

16  │  About your monitor

Environmental characteristics

• RoHS-compliant

• BFR/PVC free monitor (excluding external cables)

• Arsenic-free glass and Mercury-free for the panel only

Operating 0°C to 40°C (32°F to 104°F)

Non-operating • Storage: -20°C to 60°C (-4°F to 140°F)

• Shipping: -20°C to 60°C (-4°F to 140°F)

Operating 10% to 80% (non-condensing)

Non-operating • Storage: 5% to 90% (non-condensing)

• Shipping: 5% to 90% (non-condensing)

Operating 5000 m (16404 ft) (maximum)

Non-operating 12192 m (40000 ft) (maximum)

• 153.54 BTU/hour (maximum)

•68.24 BTU/hour (typical)

Model S2421HGF

Comp

liant standards

Te mp e ratu re

Humidity

Altitude

Thermal dissipation

About your monitor  │  17

Power management modes

If you have a VESA DPM™ compliant display

card or software installed on your

computer, the monitor can automatically reduce its power consumption when not in

use. This is referred to as Power Save Mode*. If the computer detects input from

the keyboard, mouse, or other input devices, the monitor automatically resumes to

function. The following table shows the power consumption and signaling of this

automatic power saving feature:

VESA

mode

Horizontal

sync

Vertical

sync

Video Power

indicator

Power

consumption

Normal

oper

ation

Active Active Active White 45 W

(maximum)**

20 W (typical)

Active-off

Inactive Inactive Blanked White

(breathing)

Less than 0.3 W

Switch off - - - Off Less than 0.3 W

Power Consumption P

16.3 W

Total Energy Consumption (TEC) 51.3 kWh

*Zero power consumption in OFF mode can only be achieved by disconnecting the

ain cable from the monitor.

**Maximum power consumption with max luminance.

This document is informational only and

reflects laboratory performance. Your

product may perform differently, depending on the software, components and

peripherals you ordered and shall have no obligation to update such information.

Accordingly, the customer should not rely upon this information in making decisions

about electrical tolerances or otherwise. No warranty as to accuracy or

completeness is expressed or implied.

NOTE:

: Power consumption of On mode measured with reference to

Energy Star test method.

TEC: Total energy consumption in kWh measured

with reference to

Energy Star test method.

18  │  About your monitor

Pin assignments

number

20-pin side of the

connected signal cable

1 ML3 (n)

2 GND

3 ML3 (p)

4 ML2 (n)

5 GND

6 ML2 (p)

7 ML1 (n)

8 GND

9 ML1 (p)

10 ML0 (n)

11 GND

12 ML0 (p)

13 GND

14 GND

15 AUX (p)

16 GND

17 AUX (n)

18 Hot Plug Detect

19 Re-PWR

20 +3.3 V DP_PWR

DisplayPort connector

About your monitor  │  19

HDMI connector

number

19-pin side of the

connected signal cable

1 TMDS DATA 2+

2 TMDS DATA 2 SHIELD

3 TMDS DATA 2-

4 TMDS DATA 1+

5 TMDS DATA 1 SHIELD

6 TMDS DATA 1-

7 TMDS DATA 0+

8 TMDS DATA 0 SHIELD

9 TMDS DATA 0-

10 TMDS CLOCK+

11 TMDS CLOCK SHIELD

12 TMDS CLOCK-

13 CEC

14 Reserved (N.C. on device)

15 DDC CLOCK (SCL)

16 DDC DATA (SDA)

17 DDC/CEC Ground

18 +5 V POWER

19 HOT PLUG DETECT

LCD monitor quality and pixel policy

During the LCD Monitor manufacturing process, it is not uncommon for one or more

pixels to become fixed in an unchanging state which are hard to see and do not

affect the display quality or usability. For more information on Dell Monitor Quality

and Pixel Policy, see www.dell.com/pixelguidelines.

20  │  About your monitor

Ergonomics

CAUTION: Improper or prolonged usage of keyboard may result in

injury.

CAUTION: Viewing the monitor screen for extended periods of time

may result in eye strain.

For comfort and efficiency, observe the following guidelines when setting up and

using your computer workstation:

• Position your computer so that the monitor and keyboard are directly in front

of you as you work. Special shelves are commercially available to help you

correctly position your keyboard.

• To reduce the risk of eye strain and neck/arm/back/shoulder pain from using

the monitor for long periods of time, we suggest you to:

1. Set the distance of the screen between 20 to 28 in. (50 - 70 cm) from your

eyes.

2. Blink frequently to moisten your eyes or wet your eyes with water after

prolonged usage of the monitor.

3. Take regular and frequent breaks for 20 minutes every two hours.

4. Look away from your monitor and gaze at a distant object at 20 feet away

for at least 20 seconds during the breaks.

5. Perform stretches to relieve tension in the neck, arm, back, and shoulders

during the breaks.

• Make sure that the monitor screen is at eye level or slightly lower when you

are sitting in front of the monitor.

• Adjust the tilt of the monitor, its contrast, and brightness settings.

• Adjust the ambient lighting around you (such as overhead lights, desk lamps,

and the curtains or blinds on nearby windows) to minimize reflections and

glare on the monitor screen.

• Use a chair that provides good lower-back support.

• Keep your forearms horizontal with your wrists in a neutral, comfortable

position while using the keyboard or mouse.

• Always leave space to rest your hands while using the keyboard or mouse.

• Let your upper arms rest naturally on both sides.

• Ensure that your feet are resting flat on the floor.

• When sitting, make sure that the weight of your legs is on your feet and not on

the front portion of your seat. Adjust your chair's height or use a footrest if

necessary to maintain a proper posture.

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Dell Gaming S2421HGF User guide

Dell Gaming S2421HGF User guide

Dell Gaming S2421HGF User guide

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