Antec ONE S User manual

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One / One S /
One S3
User
Manual

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One / One S / One S3 User Manual
Congratulations on your purchase of your Antec One / One S / One S3!
When building a PC, it’s important to use hardware you’re comfortable working with. From Antec, the
team behind dozens of award-winning enclosures since 1986, comes the One / One S / One S3, the
gaming case that gives you everything you need right out of the box at an attractive price. This enclosure
is stocked with features you value –USB 3.0, ample cooling and tool-less 5.25” & 3.5” drive bays – so
that you can put your PC together with ease and get to the fun stuff. If you’re looking for high quality
gaming essentials at an affordable cost, then this enclosure is the One for you.
The One / One S / One S3 does not include a power supply. Make sure you choose a power supply that is
compatible with your computer components and has a long enough power harness to reach your
motherboard and peripheral devices. We recommend our High Current Gamer or Earthwatts power
supplies for the latest ATX specification compliance, broad compatibility, and power savings capability.
At Antec, we continually refine and improve our products to ensure the highest quality. As such, your
new chassis may differ slightly from the description in this manual due to improvements applied for the
optimal building experience. As of the date of publication, all features, descriptions, and illustrations in
this manual are correct.
Disclaimer
This manual is intended only as a guide for Antec’s computer
enclosures. For more comprehensive instructions on installing the
motherboard and peripherals, please refer to the manuals that
come with those components.

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Table of Contents
Section 1: Introduction
1.1 Getting to Know Your Chassis............................................................................5
1.2 Chassis Specifications.........................................................................................6
1.3 Included Screws .................................................................................................7
Section 2: Hardware Installation
2.1 Setting Up ..........................................................................................................9
2.2 Removing the Side Panels and Front Bezel…………………………………………………….9
2.3 Motherboard Installation...................................................................................10
2.4 Installing KUHLER H2O Liquid Coolers................................................................11
2.5 Power Supply Installation ..................................................................................11
2.6 External 5.25” Device Installation......................................................................12
2.7 Internal 2.5” Device Installation ........................................................................13
2.8 Internal 3.5” Device Installation ........................................................................14
2.9 Cable Management............................................................................................14
Section 3: Front I/O Ports
3.1 USB 3.0...............................................................................................................16
3.2 AC’97 / HD Audio Ports......................................................................................16
3.3 Power Switch / Reset Switch / Hard Disk Drive LED Connectors.......................17
3.4 Rewiring Motherboard Header Connections.....................................................18
Section 4: Cooling System
4.1 Included Fans .....................................................................................................20
4.2 Optional Fans .....................................................................................................21
4.3 Air Filters............................................................................................................22

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Section 1
Introduction
One / One S / One S3 User Manual

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1.1 Getting to Know Your Chassis
1. 3 x 5.25” drive bays
2. 5 x 3.5” drive bays
3. 2 x 2.5” drive bays
4. 1 x 120 mm top exhaust fan (standard)
5. 1 x 120 mm rear exhaust fan (standard)
6. 1 x 120 mm side intake fan (optional)
7. 1 x 120 mm front intake fan (optional)
8. 1 x 120/140 mm bottom intake fan (optional)
9. CPU cutout
10. Motherboard mount: Standard ATX, microATX or Mini-ITX
11. Power supply mount
12. Front ports: 2 x USB 3.0, Audio In/Out
One S / One S3
One

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1.2 Chassis Specifications
Chassis Type
Mid Tower
Chassis Color
Black
Dimensions
17.2” (H) x 8.2” (W) x 19.2” (D)
438 mm (H) x 208 mm (W) x 488 mm (D)
Weight
One: 10.8 lbs / 4.9 kg
One S / One S3: 10.4 lbs / 4.7 kg
Cooling
One:
- 1 x 120 mm top exhaust fan
- 1 x 120 mm rear exhaust fan
- 1 x 120 mm side intake fan (optional)
- 1 x 120 mm front intake fan (optional)
- 1 x 120 mm / 140 mm bottom fan (optional)
One S / One S3:
- 1 x 120 mm top blue LED exhaust fan
- 1 x 120 mm rear exhaust fan (optional)
- 1 x 120 mm side intake fan (optional)
- 1 x 120 mm front intake fan (optional)
- 1 x 120 mm / 140 mm bottom fan (optional)
Drive Bays
- 3 x 5.25” tool-less drive bays
- 5 x 3.5” tool-less drive bays
- 2 x 2.5” drive-bays
Expansion Slots
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Motherboard Size
Standard ATX, microATX, Mini-ITX
Front I/O Panel
- Audio In/Out
- Power and Reset buttons
One / One S3:
- 2 x USB 3.0 with internal motherboard connector
One S:
- 2 x USB 2.0 ports

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Section 2
Hardware Installation
One / One S / One S3 User Manual

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2.1 Setting Up
When working in your case, please keep the following in mind:
Put the case upright on a flat, stable surface so that the rear panel (power supply and expansion
slots) is facing you.
Handle all components and cards with care.
To avoid electrostatic discharge, ground yourself periodically by touching an unpainted metal
surface or by using a wrist grounding strap.
Before you connect a cable, ensure that both connectors are correctly aligned and oriented.
Do not sit on your chassis. Although it is constructed of heavy-duty steel and internally
reinforced, it is not designed to support the weight of an adult, and may buckle.
Do not use your fingernails to separate edges or lift the sides of the chassis, as paint chipping or
injury may occur.
Place the panel thumbscrews aside in a safe place.
Exercise caution and control when handling chassis interiors. We strongly recommend taking
the appropriate time and care when working inside the chassis. Avoid hurried or careless
motions.
2.2 Removing the Side Panels and Front Bezel
To remove the left and right side panels:
1. Remove each set of two thumbscrews.
2. Slide the panel you want to remove toward the back of the case approximately 2 cm until it
stops.
3. Pull the panel free of the chassis.
You need to remove the front bezel in order to access the air filters and conduct maintenance.
To remove the front bezel:
1. Grip the bezel by the bottom and pull forward. The bezel will pop free of the chassis.

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2.3 Motherboard Installation
Before proceeding, check the manual for your CPU cooler to find out if there are steps you must do
before installing the motherboard.
Make sure you have the correct I/O panel for your motherboard. If the panel provided with the chassis
isn’t suitable, please contact your motherboard manufacturer for the correct I/O panel.
This case comes with 5preinstalled motherboard standoffs. These are positioned for Standard ATX
motherboards but can be relocated to accommodate other form factors.
1. Align the motherboard with the standoff holes on the motherboard tray and remember or mark
which holes are lined up.
2. Install standoffs as needed and put the motherboard in.
3. Screw your motherboard into the standoffs with the provided motherboard mounting screws.
Make sure you have the correct I/O panel.

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2.4 Installing KUHLER H2O Liquid Coolers
The following instructs how to install the Antec KUHLER H2O liquid CPU cooler (620 / 920). For any other
CPU coolers, please consult your manufacturer’s installation guide.
Caution:
Check your motherboard’s CPU socket to ensure its compatibility with the KUHLER H2O. The KUHLER
H2O 620 / 920 is compatible with the following CPU sockets:
Intel® LGA 1155 / 1156 / 1366 / 2011*
AMD® AM2 / AM3 / AM2+ / AM3+
*Your unit may not contain the LGA 2011 mounting bracket. To receive this bracket, please contact
Antec customer support (information is listed at end of manual).
**Be sure to install the KUHLER H2O with the end of the tubes positioned at the bottom of the radiator.
1. Remove the rear fan by unscrewing the fan from the back of the chassis.
2. Preparing the KUHLER H2O backplate is specific to your CPU socket. Please refer to the KUHLER
H2O installation guide, available at
http://www.antec.com/Believe_it/product.php?id=Mjc2OCYxNw== (KUHLER H2O 620) or
http://www.antec.com/Believe_it/product.php?id=NzA0MzcwJjE3 (KUHLER H2O 920) for more
information.
3. Prepare the retention ring according to the CPU socket you’re using.
4. Complete installation according to the KUHLER H2O instructions.
2.5 Power Supply Installation
1. With the case upright, place the power supply in the case and align the rear of the unit with the
mounting holes.
2. Attach the power supply to the case with the screws provided.
Attach the power supply with the provided screws.

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Press down on the drive cover tabs.
2.6 External 5.25” Device Installation
The One / One S / One S3 can support up to three 5.25” devices.
1. Remove the side panels and front bezel as directed in Section 2.2.
2. Remove the drive bay cover by pressing out on the two small tabs on either side of the cover,
then pushing the cover into the front of the bezel.
3. Replace the front bezel on the front of the chassis.
4. Slide your 5.25” drive through the front of the chassis until it lines up flush with the front bezel.
You will feel the drive lock into position.
5. If you need more clearance on the inside of the chassis for your drive, pull the drive bay tab on
the inside of the chassis toward you and push the drive in further.
Note: You can optionally secure your drive with screws for extra stability (D in Section 1.3)
Remove the drive bay cover.
Slide you drive until it locks.
Pull on the tab to adjust drive bay clearance.

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2.7 Internal 2.5” Device Installation
There are two 2.5” drive mounting locations in the One / One S / One S3: at the base of the drive cage
and a dedicated mount in the middle of the drive cage.
To install at the base of the drive cage:
1. Remove the side panels as described in Section 2.2.
2. Secure your drive with the 2.5” screws provided (D in Section 1.3). Your drive will attach at the
base of the drive cage at the bottom of the case, with screws affixing from the underside of the
case.
To install in the drive cage:
Note: The 2.5” drives install from the right side of the case.
1. Remove the side panels as described in Section 2.2.
2. Insert your device into the dedicated drive bay, with the connectors facing you.
3. You can optionally secure the drive to the cage with the 2.5” screws provided (D in Section 1.3)
Align your drive’s holes with the drive bay holes
when sliding it in.
Secure your drive with the provided 2.5”screws.

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2.8 Internal 3.5” Device Installation
The One / One S / One S3 includes 5 pairs of 3.5” drive rails. You will need 1 pair per 3.5” drive.
1. Line up the drive rail pins to the sides of your 3.5”
drive. Ensure that the squeeze-tabs are aligned on the
side of your drive that does not have power or data
connectors.
2. Snap the rail into place.
3. Repeat steps 1-2 for the other side of the 3.5” drive.
4. Pinch the ends of the drive rails together and slide the
drive into the 3.5” bay until it locks into position.
2.9 Cable Management
There is a cable management compartment between the
motherboard and right side panel. You can tuck excess
cables in this compartment or route them to the drive
bays through one of the four conveniently-placed cable
management holes.
Choose the cables you would like to pass through the
holes behind the motherboard tray. Pull them through
the hole toward the right side of the case. Feed the cables
back through the insertion point nearest the destination
of the cable.
This is the drive rail pin
that is inserted into
your 3.5” drive hole
Pinch the ends of the drive rails and then slide your drive into the 3.5”
bay until it locks into position.

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Section 3
Front I/O Ports
One / One S / One S3 User Manual

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Pin
Signal Names
(HDA)
Pin
Signal Names
(AC’97)
1
MIC2 L
1
MIC In
2
AGND
2
GND
3
MIC2 R
3
MIC Power
4
AVCC
4
N C
5
FRO-R
5
Line Out (R)
6
MIC2_JD
6
Line Out (R)
7
F_IO_SEN
7
N C
8
Key (no pin)
8
Key (no pin)
9
FRO-L
9
Line Out (L)
10
LINE2_JD
10
Line Out (L)
Pin
Signal Names
Pin
Signal Names
1
USB Power 1
2
USB Power 2
3
Negative Signal 1
4
Negative Signal 2
5
Positive Signal 1
6
Positive Signal 2
7
Ground 1
8
Ground 2
9
Key (No Connection)
10
Empty Pin
3.1 USB Ports
One / One S3: The One and One S3 come with two front panel USB 3.0 ports
and includes an internal motherboard connector. Connect these in the same
way you would a standard front panel with an internal header connector.
One S: The One S comes with two front panel USB 2.0 ports. Connect these
in the same way you would a standard front panel with an internal header
connector.
3.2 AC’97 / HD Audio Ports
There is an Intel® standard 10-pin AC’97 connector and an Intel® 10-pin HDA (High Definition Audio)
connector linked to the front panel of the chassis.
You can connect either the AC’97 or the HDA connector, depending on your motherboard. Locate the
internal audio connectors from your motherboard or sound card and connect the corresponding audio
cable. Consult your motherboard or sound card manual for the pin-out positions. Even if your system
supports both standards, only use one connector.
Align the connector properly to
prevent damage to your
motherboard.
1 2
9 10
USB 2.0 pin assignments

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3.3 Power Switch / Reset Switch / Hard Disk Drive LED Connectors
Connected to your front panel are LED leads for power and HDD activity, as well as switch leads for the
power and reset buttons. Attach these to the corresponding connectors on your motherboard. Consult
your motherboard manual for specific pin header locations. For LEDs, colored wires are positive ( + ).
White or black wires are negative ( –). If the LED does not light up when the system is powered on, try
reversing the connection. For more information on connecting LEDs to your motherboard, see your
motherboard user’s manual.
Note: Polarity (positive and negative) does not matter for switches.
Front panel leads

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3.4 Rewiring Motherboard Header Connections
There may come a time when you need to reconfigure the pin-out of a motherboard header connector.
Examples could be for your USB header, audio input header, or some other front panel connector such
as the Power Button connector.
Before performing any work, please refer to your motherboard user’s manual or your motherboard
manufacturer's website to confirm the pin-out needed for your connector. We strongly recommend
making a notated drawing before beginning work so that you can recover if your work gets disturbed.
Determine which wires you need to remove in order to rewire your plug to match the USB pin-outs on
your motherboard (refer to your motherboard user’s manual). Working on one connector at a time, use
a very small flathead screwdriver or similar tool to lift up on the black tab located beside the gold posts
(squares). This will allow you to easily slide out the pins from the USB plug.
Working carefully so as not to damage the wires, connectors, or pins, slowly remove the pin from the
connector. Repeat these steps for each wire you need to change.
Working carefully so as not to damage the wires, connectors or pins, slowly insert the pin into the
correct slot of the connector then snap closed the black tab that was lifted in step 1. Repeat these steps
for each wire you need to change.
Front panel headers

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Section 4
Cooling System
One / One S / One S3 User Manual

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4.1 Included Fans
One: The One comes with two standard fans (yellow
outline) –a rear 120 mm exhaust fan and a top 120
mm exhaust fan.
The red rectangles indicate additional fan mounts.
Mounting procedures for these fans is discussed in
Section 4.2.
One S / One S3: The One S and One S3 come with
one standard fan (yellow outline) –a top 120 mm
blue LED exhaust fan.
The red rectangles indicate additional fan mounts.
Mounting procedures for these fans is discussed in
Section 4.2.
120 mm Single Speed Fan Specifications
Size : 120 x 25 mm fan
Rated Voltage : 12V
Operating Voltage : 10.8V ~ 13.2V
Speed
(RPM)
Input
Current
Airflow
Static
Pressure
Acoustic
Noise
Input
Power
1200
0.20A
(Max.)
1.2 m³ / min
(42.6 CFM)
1.0 mm-H2O
(0.04 inch-H2O)
23.7 dBA
2.4W
One fan locations
One S / One S3 fan locations