Dell S2721HGF User manual

Model: S2721HGF
Regulatory model: S2721HGFt
Dell 27 Curved Gaming Monitor
-S2721HGF
User’s Guide

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.
Copyright © 2020 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.
2020 – 07
Rev. A00

Contents
Safety instructions..............................5
About your monitor .............................6
Package contents . . . . . . . . . . . . . . . . . . . . . . . . . 6
Product features. . . . . . . . . . . . . . . . . . . . . . . . . .7
Identifying parts and controls. . . . . . . . . . . . . . . . . . .8
Front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Monitor specifications. . . . . . . . . . . . . . . . . . . . . . .11
Resolution specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Preset display modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . . 15
Power management modes . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Plug-and-Play . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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
Using the tilt and vertical extension . . . . . . . . . . . . . . 27
Connecting your monitor . . . . . . . . . . . . . . . . . . . . 28
Organizing your cables . . . . . . . . . . . . . . . . . . . . . 29
Securing your monitor using Kensington lock (optional) . . . 29
Removing the monitor stand . . . . . . . . . . . . . . . . . . 30
Wall mounting (Optional) . . . . . . . . . . . . . . . . . . . . 31
Contents | 3

4| Contents
Operating the monitor ..........................32
Turning on the monitor . . . . . . . . . . . . . . . . . . . . . 32
Using the joystick control . . . . . . . . . . . . . . . . . . . . 32
Using the rear-panel controls . . . . . . . . . . . . . . . . . . 33
Using the On-Screen Display (OSD) menu . . . . . . . . . . . 35
Accessing the menu system . . . . . . . . . . . . . . . . . . . . . . . . .35
OSD warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Locking the rear-panel control buttons . . . . . . . . . . . . . . . . . . .47
Setting the maximum resolution. . . . . . . . . . . . . . . . . . . . . . .48
Troubleshooting ...............................49
Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Built-in diagnostics . . . . . . . . . . . . . . . . . . . . . . . 51
Common problems . . . . . . . . . . . . . . . . . . . . . . . . 52
Product specific problems . . . . . . . . . . . . . . . . . . . 54
Appendix.....................................55
FCC notices (U.S. only) and other regulatory information . . . 55
Contacting Dell . . . . . . . . . . . . . . . . . . . . . . . . . 55
Outline Dimension .............................56

Safety instructions | 5
Safety instructions
WARNING: 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.
For information on safety instructions, see the Safety, Environmental, and Regulatory
Information (SERI).

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 components may be optional and may not ship with your
monitor. Somefeatures may not be available in certain countries.
Display
Stand riser
Stand base
Power cable (varies by country)
HDMI cable

About your monitor | 7
• Quick Setup Guide
• Safety, Environmental, and
Regulatory Information
Product features
The Dell S2721HGF monitor has an active matrix, Thin-Film Transistor (TFT), Liquid
Crystal Display (LCD), and LED backlight. The monitor features include:
• 68.47 cm (27 in.) viewable area (Measured diagonally) 1920 x 1080 (16:9)
resolution, plus full-screen support for lower resolutions.
• Color gamut of 72% NTSC, CIE 1931, and 83% NTSC, CIE 1976.
• Digital connectivity with DisplayPort and HDMI.
• Tilt and height adjustment capabilities.
• Removable pedestal stand and Video Electronics Standards Association (VESA™)
100 mm mounting holes for flexible mounting solutions.
• Plug and play capability if supported by your computer.
• On-Screen Display (OSD) adjustments for ease of set-up and screen optimization.
• Game enhanced features such as Timer, Frame Rate Counter and Dark Stabilizer
in addition to enhanced game modes such as FPS, MOBA/RTS, SPORTS, or RPG
, and 3 additional game modes to personalize your preferences.
• Power and OSD buttons lock.
• Security lock slot.
• Stand lock.
• 0.5 W standby power when in the sleep mode.
• AMD FreeSync™ Premium for fluid, tear-free gameplay.
• Premium Panel Exchange for peace of mind.
• Optimize eye comfort with a flicker-free screen and ComfortView feature which
minimizes blue light emission.
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.

8| About your monitor
Identifying parts and controls
Front view
1
Label Description Use
1Power On/Off button (with LED
indicator)
To turn the monitor on or off.
1

About your monitor | 9
Back view
7
1
2
3
4
5
6
Label Description Use
1VESA mounting holes (100 mm x
100 mm-behind attached VESA
cover)
Wall mount monitor using VESA-
compatible wall mount kit (100 mm x 100
mm).
2Regulatory label Lists the regulatory approvals.
3Stand release button Releases stand from the monitor.
4Joystick Use it to control the OSD menu.
5Function buttons For more information, see Operating the
monitor.
6Barcode, serial number, and Service
Tag 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.
7Cable-management slot Use to organize cables by inserting them
through the slot.
1
2
3
4
5
6
7

10 | About your monitor
Bottom view
1 2 4 5 63 7
Label Description Use
1Power connector Connect the power cable (shipped with your monitor).
2Security lock slot Secures monitor with security cable lock (sold separately).
3Stand lock Lock the stand to the monitor using a M3 x 6 mm screw
(screw not included).
4HDMI port
(HDMI 1)
Connect your computer with the HDMI cable (shipped with
your monitor).
5HDMI port
(HDMI 2)
Connect your computer with the HDMI cable (shipped with
your monitor).
6DisplayPort Connect your computer with the DisplayPort cable.
7Headphone port Connect a headphone
1 2 3 4 5 6 7

About your monitor | 11
Monitor specifications
Screen type Active matrix - TFT LCD
Panel Type VA
Aspect ratio 16:9
Viewable image dimensions
Diagonal 684.7 mm (27 in.)
Active Area
Horizontal 596.74 mm (23.49 in.)
Vertical 335.66 mm (13.21 in.)
Area 200301.7 mm2(310.30 in.2)
Pixel pitch 0.3108 mm x 0.3108 mm
Pixel per inch (PPI) 81.59
Viewing angle
Horizontal 178° (typical)
Vertical 178° (typical)
Brightness 350 cd/m² (typical)
Contrast ratio 3000 to 1 (typical)
Curvature Curvature 1500R
Display screen coating Anti-glare treatment of the front polarizer (3H) hard
coating
Backlight LED edgelight system
Response Time (Gray to
Gray)
8 ms (Fast mode)
6 ms (SuperFast mode)
4 ms (Extreme mode)
1 ms (MPRT mode)
NOTE: In Extreme mode, slight artifacts may be
encountered due to overdriving for fast speed and
responsiveness. Use Super Fast/Fast mode for
optimal front of screen experience and game play.
Color depth 16.7 million colors
Color gamut* 72% NTSC, CIE 1931, and 83% NTSC, CIE 1976
Connectivity • 1 x DisplayPort 1.2 port
• 2 x HDMI 1.4 port
• 1 x Audio headphone port (3.5 mm jack)

12 | About your monitor
Border width (edge of monitor to active area)
To p 7.70 mm
Left/Right 7.70 mm
Bottom 20.80 mm
Adjustability
Height adjustable stand 100 mm
Tilt -5° to 21°
Cable management Yes
Dell Display Manager (DDM)
Compatibility
Easy Arrange
and other key features
Security Security lock slot (cable lock sold separately)
* At panel native only, under Custom Mode preset.
Resolution specifications
Resolution
specifications
HDMI DisplayPort
Maximum preset
resolution
1920 x 1080 at 144 MHz 1920 x 1080 at 144 MHz
Horizontal scan range 30 kHz to 170 kHz
Vertical scan range 48 Hz to 144 Hz
Video display capabilities
(HDMI & DisplayPort
alternate mode)
480p@60Hz, 576p@50Hz, 720p@50Hz,
720p@60Hz,
1080p@50Hz, 1080p@60Hz，1080p@120Hz

About your monitor | 13
Preset display modes
Display Mode Horizontal
Frequency
(kHz)
Vertical
frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal/
Vertical)
VGA 720 x 400 31.47 70.08 28.322 -/+
VGA 640 x 480 31.47 59.94 25.175 -/-
VESA 640 x 480
37.5
75
31.5
-/-
VESA 800 x 600 37.88 60.317 40 +/+
VESA 800 x 600 46.88 75 49.5 +/+
VESA 1024 x 768 48.36 60.004 65 -/-
VESA 1024 x 768 60.02 75.029 78.75 +/+
MAC 1152 x 864 67.5 75 108 +/+
CVT 1280 x 800
49.7
59.81
83.5
+/+
VESA 1280 x 1024 64 60.02 108 +/+
VESA 1280 x 1024 80 75.02 135 +/+
VESA 1366 x 768 4 7.7 59.79 85.5 +/+
VEST 1680 x 1050 65.29 59.954 146.25 +/+
CVT 1920 x 1080 67.5 60 148.5 +/+
1920 x 1080
137.26
119.982
285.5
+/+
1920 x 1080 166.608 144 339.88 +/+

14 | About your monitor
Electrical specifications
Video input signals • Digital video signal for each dierential line
Per dierential line at 100 ohm impedance
• DisplayPort /HDMI signal input support
Input voltage/ frequency/current 100-240 VAC / 50 or 60 Hz ± 3 Hz / 1.5 A
(maximum)
Inrush current 120 V: 30 A (Max.)
240 V: 60 A (Max.)
Physical characteristics
Connector type • One DisplayPort
• Two HDMI 1.4 ports
• One headphone port
Signal cable type HDMI 1.8 m cable
Dimensions (with stand)
Height (extended) 493.2 mm (19.42 in.)
Height (compressed) 393.0 mm (15.50 in.)
Width 608.4 mm (23.95 in.)
Depth 190.4 mm (7.49 in.)
Dimensions (without stand)
Height 364.1 mm (14.34 in.)
Width 608.4 mm (23.95 in.)
Depth 96.3 mm (3.79 in.)
Stand dimensions
Height (extended) 386.0 mm (15.20 in.)
Height (compressed) 337.0 mm (13.30 in.)
Width 230.2 mm (9.06 in.)
Depth 190.4 mm (7.49 in.)
Weight
Weight with packaging 8.86 kg (19.53 lb)
Weight with stand assembly and
cables 5.6 kg (12.34 lb)
Weight without stand assembly
(For wall mount or VESA mount
considerations - no cables)
4.06kg (8.95 lb)
Weight of stand assembly 1.54kg (3.4 lb)

About your monitor | 15
Environmental characteristics
Compliant Standards
• RoHS Compliant
• BFR/PVC Free monitor (excluding external cables)
• Arsenic-Free glass and Mercury-Free for the panel only
Temperature
Operating 0°C to 40°C (32°F to 104°F)
Non-operating –20°C to 60°C (–4°F to 140°F)
Humidity
Operating 10% to 80% (non-condensing)
Non-operating 5% to 90% (non-condensing)
Altitude
Operating 5,000 m (16,404 ft) (maximum)
Non-operating 12,192 m (40,000 ft) (maximum)
Thermal dissipation 156.96 BTU/hour (maximum)
92.13 BTU/hour (typical)

16 | About your monitor
Power management modes
If you have VESA’s DPM-compliant video card or software installed in your PC, 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 functioning. The
following table shows the power consumption and signaling of this automatic power
saving feature.
VESA
Modes
Horizontal
Sync
Vertical
Sync
Video Power Indicator Power
Consumption
Normal
operation
Active Active Active White 46 W (maximum)**
27 W (typical)
Active-off
mode
Inactive Inactive Off White
(Glowing)
Less than 0.5 W
Switch off - - - Off Less than 0.3 W
Power Consumption Pon 18.76 W
The OSD operates only in the normal operation mode. If you press any button in the
active-off mode, the following message is displayed:
Dell 27 Gaming Monitor
S2721HGF
No DP signal from your device.
Press any key on the keyboard or move the mouse or wake it up.
If there is no display, press the monitor button again to select the correct
input source.
*Zero power consumption in OFF mode can only be achieved by disconnecting
the AC mains cable from the monitor.
**Maximum power consumption with maximum 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.
Activate the computer and the monitor to gain access to the OSD.
NOTE:
Pon: Power consumption of On Mode measured with default setting and
reference to Energy Star test method.

About your monitor | 17
Pin assignments
DisplayPort
Pin
number 20-pin side of theconnected signal cable Pin number 20-pin side of theconnected signal cable
1ML3(n) 11 GND
2GND 12 ML0(p)
3ML3(p) 13 CONFIG1
4ML2(n) 14 CONFIG2
5GND 15 AUX CH (p)
6ML2(p) 16 GND
7ML1(n) 17 AUX CH (n)
8GND 18 Hot Plug Detect
9ML1(p) 19 Return
10 ML0(n) 20 DP_PWR

18 | About your monitor
HDMI port
Pin number 19-pin side of
theconnected signal
cable
Pin
number
19-pin side of
theconnected signal
cable
1TMDS DATA 2+ 11 TMDS CLOCK SHIELD
2TMDS DATA 2 SHIELD 12 TMDS CLOCK-
3TMDS DATA 2- 13 CEC
4TMDS DATA 1+ 14 Reserved (N.C. on device)
5TMDS DATA 1 SHIELD 15 DDC CLOCK (SCL)
6TMDS DATA 1- 16 DDC DATA (SDA)
7TMDS DATA 0+ 17 DDC/CEC Ground
8TMDS DATA 0 SHIELD 18 +5 V POWER
9TMDS DATA 0- 19 HOT PLUG DETECT
10 TMDS CLOCK+

About your monitor | 19
Plug-and-Play
You can install the monitor in any Plug-and-Play-compatible system. The monitor
automatically provides the computer system with its extended display identification
data (EDID) using display data channel (DDC) protocols so the computer can configure
itself and optimize the monitor settings. Most monitor installations are automatic;
you can select different settings if desired. For more information about changing the
monitor settings, see Operating the monitor.
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 LCD Monitor Pixel Policy, see
Dell support site at: 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 screen about 20 to 28 in. (50-70 cm) from your eyes.
2. Blink frequently to moisten or rewet your eyes when working with 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/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.
• Vary your work activities. Try to organize your work so that you do not have to sit
and work for extended periods of time. Try to stand or get up and walk around at
regular intervals.