Samsung S25BG40 Series User manual

USER MANUAL
Gaming Monitor
S25BG40* S27BG40*
The color and the appearance may differ depending on the product, and the specifications are subject to
change without prior notice to improve the performance.
The contents of this manual are subject to change without notice to improve quality.
© Samsung
Samsung owns the copyright for this manual.
Use or reproduction of this manual in parts or entirety without the authorization of Samsung is prohibited.
Trademarks other than that of Samsung are owned by their respective owners.
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Table of contents
Before Using the Product
Safety Precautions 4
Electricity and Safety 4
Installation 5
Operation 6
Cleaning 8
Correct posture to use the product 8
Preparations
Installation 9
Attaching the Stand 9
Precautions for moving the product 10
Checking the space around the product 10
Adjusting the Product Tilt and Height 11
Rotating the Product 12
Anti-theft Lock 13
Wall Mount Kit Specifications (VESA) 13
Control Panel 14
2
Menu
Game 20
Picture 24
OnScreen Display 28
System 28
Support 31
Installing the Software
Easy Setting Box 32
Restrictions and Problems with the Installation 32
System Requirements 32
Driver Installation 32
Connecting and Using a Source Device
Read below before connecting the product. 15
Ports 16
Connecting and Using a PC 17
Connection Using the HDMI Cable 17
Connection Using an HDMI-DVI Cable 17
Connection Using an DP Cable 17
Connecting to headphones or earphones 17
Connecting the Power 18
Tidying Up the Connected Cables 18
Setting Optimum Resolution 19
List of graphic cards supporting HDR10 19

Table of contents
3
Appendix
Responsibility for the Pay Service (Cost to
Customers) 41
Not a product defect 41
A Product damage caused by customer's fault 41
Others 41
FreeSync (for AMD graphics card) 42
Adaptive-Sync (for NVIDIA graphics card) 43
Troubleshooting Guide
Requirements Before Contacting Samsung
Customer Service Center 33
Product diagnosis (Screen issue) 33
Checking the Resolution and Frequency 33
Check the following. 33
Q & A 36
Specifications
General 37
Standard Signal Mode Table 39

4
Safety Precautions
Warning A serious or fatal injury may result if instructions are not followed.
Caution Personal injury or damage to properties may result if instructions are
not followed.
CAUTION
RISK OF ELECTRIC SHOCK. DO NOT OPEN.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). THERE ARE
NO USER SERVICEABLE PARTS INSIDE. REFER ALL SERVICING TO QUALIFIED PERSONNEL.
This symbol indicates that high voltage
is present inside. It is dangerous to
make any kind of contact with any
internal part of this product.
AC voltage: Rated voltage marked with
this symbol is AC voltage.
This symbol indicates that this
product has included important
literature concerning operation and
maintenance.
DC voltage: Rated voltage marked with
this symbol is DC voltage.
Class II product: This symbol indicates
that a safety connection to electrical
earth (ground) is not required. If this
symbol is not present on a product
with a mains lead, the product
MUST have a reliable connection to
protective earth (ground).
Caution. Consult instructions for use:
This symbol instructs the user to
consult the user manual for further
safety related information.
Electricity and Safety
Warning
•Do not use a damaged power cord or plug, or a loose power socket.
•Do not use multiple products with a single power socket.
•Do not touch the power plug with wet hands.
•Insert the power plug all the way in so it is not loose.
•Connect the power plug to a grounded power socket (type 1 insulated devices only).
•Do not bend or pull the power cord with force. Be careful not to leave the power cord under a heavy
object.
•Do not place the power cord or product near heat sources.
•Clean any dust around the pins of the power plug or the power socket with a dry cloth.
Caution
•Do not disconnect the power cord while the product is being used.
•Only use the power cord provided with your product by Samsung. Do not use the power cord with
other products.
•Keep the power socket where the power cord is connected unobstructed.
‒The power cord must be disconnected to cut off power to the product when an issue occurs.
•Hold the plug when disconnecting the power cord from the power socket.
Before Using the Product
Chapter 01

5
Warning
•DO NOT PLACE CANDLES, INSECT REPELLANTS OR CIGARETTES ON TOP OF THE PRODUCT. DO NOT
INSTALL THE PRODUCT NEAR HEAT SOURCES.
•Do not install the product in poorly ventilated spaces such as a bookcase or closet.
•Install the product at least 10cm away from the wall to allow ventilation.
•Keep the plastic packaging out of the reach of children.
‒Children may suffocate.
•Do not install the product on an unstable or vibrating surface (insecure shelf, sloped surface, etc.)
‒The product may fall and become damaged and/or cause an injury.
‒Using the product in an area with excess vibration may damage the product or cause a fire.
•Do not install the product in a vehicle or a place exposed to dust, moisture (water drips, etc.), oil, or
smoke.
•Do not expose the product to direct sunlight, heat, or a hot object such as a stove.
‒The product lifespan may be reduced or a fire may result.
•Do not install the product within the reach of young children.
‒The product may fall and injure children.
•Edible oil, such as soybean oil, can damage or deform the product. Do not install the product in a
kitchen or near a kitchen counter.
Caution
•Do not drop the product while moving.
•Do not set down the product on its front.
•When installing the product on a cabinet or shelf, make sure that the bottom edge of the front of the
product is not protruding.
‒The product may fall and become damaged and/or cause an injury.
‒Install the product only on cabinets or shelves of the right size.
•Set down the product gently.
‒Product failure or personal injury may result.
•Installing the product in an unusual place (a place exposed to a lot of fine dust, chemical substances,
extreme temperatures or a significant presence of moisture, or a place where the product will
operate continuously for an extended period of time) may seriously affect its performance.
‒Be sure to consult Samsung Customer Service Center if you want to install the product at such a
place.
•Before assembling the product, place the product down on a flat and stable surface so that the
screen is facing downwards.
•In the same series, the color can vary depending on the size.
Installation

6
Warning
•There is a high voltage inside the product. Never disassemble, repair or modify the product yourself.
‒Contact Samsung Customer Service Center for repairs.
•To move the product, first disconnect all the cables from it, including the power cable.
•If the product generates abnormal sounds, a burning smell or smoke, disconnect the power cord
immediately and contact Samsung Customer Service Center.
•Do not let children hang from the product or climb on top of it.
‒Children may become injured or seriously harmed.
•If the product is dropped or the outer case is damaged, turn off the power and disconnect the power
cord. Then contact Samsung Customer Service Center.
‒Continued use can result in a fire or electric shock.
•Do not leave heavy objects or items that children like (toys, sweets, etc.) on top of the product.
‒The product or heavy objects may fall as children try to reach for the toys or sweets resulting in a
serious injury.
•During a lightning or thunderstorm, power off the product and remove the power cable.
•Do not drop objects on the product or apply impact.
•Do not move the product by pulling the power cord or any cable.
•If a gas leakage is found, do not touch the product or power plug. Also, ventilate the area
immediately.
•Do not lift or move the product by pulling the power cord or any cable.
•Do not use or keep combustible spray or an inflammable substance near the product.
•Ensure the vents are not blocked by tablecloths or curtains.
‒An increased internal temperature may cause a fire.
•Do not insert metallic objects (chopsticks, coins, hairpins, etc) or objects that burn easily (paper,
matches, etc) into the product (via the vent or input/output ports, etc).
‒Be sure to power off the product and disconnect the power cord when water or other foreign
substances have entered the product. Then contact Samsung Customer Service Center.
•Do not place objects containing liquid (vases, pots, bottles, etc) or metallic objects on top of the
product.
‒Be sure to power off the product and disconnect the power cord when water or other foreign
substances have entered the product. Then contact Samsung Customer Service Center.
Operation

7
Caution
•Leaving the screen fixed on a stationary image for an extended period of time may cause afterimage
burn-in or defective pixels.
‒Set the screen to power-saving mode or moving-picture screen saverwhen not using the product
for an extended period of time.
•Disconnect the power cord from the power socket if you do not plan on using the product for an
extended period of time (vacation, etc).
‒Dust accumulation combined with heat can cause a fire, electric shock or electric leakage.
•Use the product at the recommended resolution and frequency.
‒Your eyesight may deteriorate.
•Do not put AC/DC adapters together.
•Remove the plastic bag from the AC/DC adapter before you use it.
•Do not let water enter the AC/DC adapter device or get the device wet.
‒An electric shock or fire may result.
‒Avoid using the product outdoors where it can be exposed to rain or snow.
‒Be careful not to get the AC/DC adapterwet when you wash the floor.
•Do not put the AC/DC adapter near to any heating apparatus.
‒Otherwise, a fire may result.
•Keep the AC/DC adapter in a well-ventilated area.
•If you place the AC/DC power adapter hanging with the cord input facing upwards, water or other
foreign substances could enter the Adapter and cause the Adapter to malfunction.
Make sure to rest the AC/DC power adapter flat on a table or the floor.
•Do not hold the product upside-down or move it by holding the stand.
‒The product may fall and become damaged or cause an injury.
•Looking at the screen too close for an extended period of time can deteriorate your eyesight.
•Do not use humidifiers or stoves around the product.
•Rest your eyes for more than 5 minutes or look at distance objects for every1 hour of product use.
•Do not touch the screen when the product has been turned on for an extended period of time as it
will become hot.
•Store small accessories out of the reach of children.
•Exercise caution when adjusting the product angle.
‒Your hand or finger may get stuck and injured.
‒Tilting the product at an excessive angle may cause the product to fall and an injury may result.
•Do not place heavy objects on the product.
‒Product failure or personal injury may result.
•When using headphones or earphones, do not turn the volume too high.
‒Having the sound too loud may damage your hearing.

8
Cleaning
High-glossy models can develop white stains on the surface if an ultrasonic wave humidifier is used
nearby.
―Contact your nearest Samsung Customer Service Center if you want to clean the inside of the product (Service
fee will be charged.)
Do not press the product screen with hands or other objects. There is a risk of damaging the screen.
―Exercise care when cleaning as the panel and exterior of advanced LCDs are easily scratched.
Take the following steps when cleaning.
1 Power off the product and PC.
2 Disconnect the power cord from the product.
―Hold the power cable by the plug and do not touch the cable with wet hands. Otherwise, an electric shock
may result.
3 Wipe the product with a clean, soft and dry cloth.
Wet a soft cloth in water, wing it out well, and then use the cloth to wipe the exterior of the product
clean.
‒Do not apply a cleaning agent that contains alcohol, solvent, or surfactant to the product.
‒Do not spray water or detergent directly on the product.
4 Connect the power cord to the product when cleaning is finished.
5 Power on the product and PC.
Correct posture to use the product
Use the product in the correct posture as follows:
•Straighten your back.
•Allow a distance of 45 to 50cm between your eye and the screen, and look slightly downward at the
screen.
•Keep your eyes directly in front of the screen.
•Adjust the angle so light does not reflect on the screen.
•Keep your forearms perpendicular to your upper arms and level with the back of your hands.
•Keep your elbows at about a right angle.
•Adjust the height of the product so you can keep your knees bent at 90 degrees or more, your heels
attached to the floor, and your arms lower than your heart.
•Do the Eye excercises or blink frequently, then eye fatigue will be relieved.

9
Preparations
Chapter 02
Installation
Attaching the Stand
―Disassembly is the reverse order of assembly.
1
Put the stand base onto the stand neck as the
direction shown in the figure. Check that the stand
neck is firmly connected.
2345
Tightly fasten the connecting screw at
the bottom of the stand base. Fasten
the large screw in the middle for
assembly.
Push the assembled stand into the main body in the direction of the arrow as
shown in the figure.
Disassemble the COVER-REAR TOP. Assemble the COVER-REAR TOP to the stand neck
as shown in the figure.
678
Rotate the COVER-REAR TOP clockwise. Stand up the monitor as shown in the
figure.
After installing the stand, place the
product upright.
Caution
Do not arbitrarily remove the panel film. If not
observed, the warranty service may be restricted.

10
Precautions for moving the product
•Hold the lower corners or edges of the
product when moving it.
•Do not directly apply pressure on the
screen.
•Do not hold the screen when moving the
product.
•Do not hold the product upside down only by
the stand.
•Do not press down on the product. There is
a risk of damaging the product.
•Be careful and ensure that your fingers are
not caught.
•Be careful and ensure that your fingers are
not caught.
Checking the space around the product
Make sure to have enough space for ventilation when placing the product. An internal temperature rise
may cause fire and damage the product. Maintain enough space around the product as shown in the
diagram when installing the product.
―The exterior may differ depending on the product.
10 cm
(3.93 Inches)
10 cm
(3.93 Inches)
10 cm
(3.93 Inches)
10 cm
(3.93 Inches)
10 cm
(3.93 Inches)

11
Adjusting the Product Tilt and Height
―The color and shape of parts may differ from what is shown. Specifications are subject to change without
notice to improve quality.
-3.0° (±2.0°) ~ +22.0° (±2.0°) 0 ~ 120.0 mm (±5.0 mm)
•The product tilt and height can be adjusted.
•Hold the top center of the product and adjust the height carefully.
•The height adjustment has a certain tolerance. Stay within the tolerances when adjusting the height
of the product.
Caution
•Grasp the left and right sides of the monitor and adjust the swivel.
•Grasp the center of the monitor and adjust the height.
•Do NOT hold the stand moving part with your hand when leveling the screen. Your hand may get
hurt.
After adjusting the product tilt and height, if the screen is not level, take the following actions.
+1˚
-1˚
•Hold the bezel at both side edges and adjust the monitor angle until the screen becomes level. (Be
careful not to directly hold the LCD display.)
•The monitor angle can be adjusted from -1° to +1°.

12
Rotating the Product
―The color and shape of parts may differ from what is shown. Specifications are subject to change without
notice to improve quality.
-15.0° (±2.0°) ~ +15.0° (±2.0°) -92.0° (±2.0°) ~ +92.0° (±2.0°)
You can rotate your product as shown below.
4 5 6
1 2 3
•Be sure to fully extend the stand before rotating the product.
•If you rotate the product without fully extending the stand, the corner of the product may hit the
floor and get damaged.
•When rotating the product, be careful not to damage the product by hitting the object or stand.

13
Anti-theft Lock
―An anti-theft lock allows you to use the product securely even in public places.
―The locking device shape and locking method depend on the manufacturer. Refer to the manuals provided
with your anti-theft locking device for details.
To lock an anti-theft locking device:
1 Fix the cable of your anti-theft locking device to a heavy object such as a desk.
2 Put one end of the cable through the loop on the other end.
3 Insert the locking device into the anti-theft lock slot at the back of the product.
4 Lock the locking device.
‒An anti-theft locking device can be purchased separately.
‒Refer to the manuals provided with your anti-theft locking device for details.
‒Anti-theft locking devices can be purchased at electronics retailers or online.
Wall Mount Kit Specifications (VESA)
―Install your wall mount on a solid wall perpendicular to the floor. Before attaching the wall mount to surfaces
other than plaster board, please contact your nearest dealer for additional information. If you install the
product on a slanted wall, it may fall and result in severe personal injury. Samsung wall mount kits contain a
detailed installation manual and all parts necessary for assembly are provided.
•Do not use screws that are longer than the standard length or do not comply with the VESA standard
screw specifications. Screws that are too long may cause damage to the inside of the product.
•Forwall mounts that do not comply with the VESA standard screw specifications, the length of the
screws may differ depending on the wall mount specifications.
•Do not fasten the screws too firmly. This may damage the product or cause the product to fall,
leading to personal injury. Samsung is not liable for these kinds of accidents.
•Samsung is not liable for product damage or personal injury when a non-VESA or non-specified wall
mount is used or the consumer fails to follow the product installation instructions.
•Do not mount the product at more than a 15 degree tilt.
•Standard dimensions forwall mount kits are shown in the table below.
Model name VESA screw hole specs
(A * B) in millimeters
C (mm) Standard
Screw
Quantity
S25BG40* /
S27BG40* 100.0 x 100.0 8.5 ~ 10.5 M4 4
―Do not install your Wall Mount Kit while your product is turned on. It may result in personal injury due to
electric shock.

14
Control Panel
―The color and shape of parts may differ from what is shown. Specifications are subject to change without
notice to improve quality.
Power LED
PRESS(ENTER)
LEFT RIGHT
DOWN(FRONT)
5-Way Button
UP(REAR)
Return
Custom Key
Function Key Guide
Parts Description
5-Way Button Multi directional button that helps navigate.
Power LED
This LED is power status indicator.
―You can select the power LED operation to be enabled or disabled on
the menu screen. ( → System → Power LED On)
Function Key Guide To use the Function Key Guide, press the 5-Way Button when the
screen is turned on.
Custom Key
•Custom Key is used to directly access the function set in Setup
Custom Key.
•Setup Custom Key
―Go to → System → Setup Custom Key and change the custom
key.
Source Changes the input source. A message will appear on the top left
corner of the screen if the input source has been changed.
Menu Displays the main on-screen menu.
Power Off Turns off the product.
Return Exits from the menu page.

15
Connecting and Using a Source Device
Chapter 03
Read below before connecting the product.
1 Before connecting the product, check the shapes of both ports of the supplied signal cables and the
shapes and locations of the ports on the product and external device.
2 Before connecting the product, make sure you remove the power cables from both the product and
the external device to prevent damage to the product due to a short circuit or over current.
3 After all signal cables have been properly connected, connect the power cables back to the product
and the external device.
4 After connecting is completed, make sure you read the manuals to acquaint yourself with the
product functions, precautions and other information required to use the product properly.
5 To use Max specifications of our products, check the support specifications of the cable version you
use.
―Connecting parts may differ in different products.
―Provided ports may vary depending on the product.

16
Ports
―The functions available may vary depending on the product model. The color and shape of parts may differ
from what is shown. Specifications are subject to change without notice to improve quality. Refer to the
actual product.
SERVICE
SERVICE
DC 14V
DC 19V
S25BG40*
S27BG40*
Port Description
Connect to an audio output device such as headphones or earphones.
Connects to a source device using an HDMI cable or HDMI-DVI cable.
Connects to a PC using a DP cable.
SERVICE Use a USB memory stick to perform software upgrade.
DC 14V Connects to the AC/DC adapter.
―S25BG40* model only.
DC 19V Connects to the AC/DC adapter.
―S27BG40* model only.

17
Connecting and Using a PC
Select a connection method suitable for your PC.
Connection Using the HDMI Cable
―It is recommended to use the HDMI cable provided as components. If not provided, be sure to use authorized
cable for HDMI cable connections. If you use a unauthorized HDMI cable, the image quality may be degrade.
Connection Using an HDMI-DVI Cable
―The audio function is not supported if the source device is connected using the HDMI-DVI cable.
―The optimum resolution may not be available with an HDMI-DVI cable.
Connection Using an DP Cable
―It is recommended to use the DP cable provided as an accessory. If not provided, be sure to use a DP cable of 1.5
m or below.
―Use a VESA certified DP 1.2 cable or higher and its gender.
Connecting to headphones or earphones
―Use headphones or earphones when activating sound with an HDMI-HDMI or DP cable.
―The headphones or earphones jack supports only the 3 conductor tip-ring-sleeve (TRS) type.

18
Connecting the Power
HDMI IN DP IN SERVICE DC 19V
1 Connect the power cable to the AC/DC adapter. Then, connect the AC/DC adapter to the DC 19V port
on the back of the product.
‒Rated power consumption for adapters differs depending on the model. Use an adapter that meets
the power consumption specification of the model.
2 Next, connect the power cable to the power outlet.
3 Press the 5-Way button at the bottom of the product to turn it on.
―The input voltage is switched automatically.
Tidying Up the Connected Cables
1
12
Connect the corresponding cables. Pull the right side of the HOLDER-STAND CABLE
to remove from the stand. The left side of the
HOLDER-STAND CABLE can be damaged when
pulled forcibly.
1
3
Put both cables in the cable holder on the stand
(HOLDER-STAND CABLE) to organize the cables,
as shown in the figure.
Assembly is complete.

19
Setting Optimum Resolution
An information message about setting optimum resolution will appear if you power on the product for
the first time after purchase.
Select a language on information message and change the resolution on your PC to the optimum setting.
―If the optimum resolution is not selected, the message will appear up to three times for a specified time even
when the product is turned off and on again.
―If you want to set the optimum resolution foryour computer, please refer to (Q&A) → “How can I change the
resolution?”
―You can adjust the refresh rate according to the screen resolution by selecting Game → Refresh Rate in the
OSD menu.
―To enable the maximum refresh rate, set Adaptive-Sync / FreeSync Premium to On or set Refresh Rate to 240
Hz.
List of graphic cards supporting HDR10
HDR10 is accessible only on Windows 10 systems equipped with graphic cards that support Play Ready 3.0
Digital Rights Management (for protected HDR content). Use graphic cards listed below for HDR10.
•NVIDIA GeForce 1000 series or higher
•AMD Radeon™ RX 400 series or higher
•Intel UHD Graphics 600 series or higher
―Graphic cards that support hardware-accelerated 10-bit video decoding for HDR video codecs are
recommended.

20
Menu
Function Key Guide →
Chapter 04
―The functions available may vary depending on the product model. The color and shape of parts may differ from what is shown. Specifications are subject to change without notice to improve quality.
Game
2nd 3rd Description
Refresh Rate Change the screen refresh rate. A higher refresh rate can reduce eye strain.
•DisplayPort: 60 Hz / 120 Hz / 240 Hz
HDMI: 60 Hz / 120 Hz / 240 Hz
―This option is not available when Ultrawide Game View is set to On.
―This option is not available when Adaptive-Sync is set to On.
―This option is not available when FreeSync Premium is set to On.
―This option is not available when Input Port Ver. is set to 1.4.
―This option is not available when DisplayPort Ver. is set to 1.1.
―Changing the Refresh Rate may cause screen flickering, depending on the PC's graphics card.
―The function is available in a PC equipped with the graphics card that can change the refresh rate.
It is unavailable in the devices (e.g. AV devices) with fixed refresh rates. If the function is applied, the screen may have malfunction.
―If the Refresh Rate function is in use and the text displayed on the PC screen looks blurry or corrupted, resolve the issue by changing the resolution of the
PC screen to the recommended resolution.