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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.
Table of Contents Section 1: Introduction Getting to Know Your Chassis ................5 Chassis Specifications..................6 Included Screws ....................7 Section 2: Hardware Installation Setting Up ......................9 Removing the Side Panels and Front Bezel…………………………………………………… . 9 Motherboard Installation................... 10 Installing KUHLER H O Liquid Coolers ..............
Getting to Know Your Chassis One S / One S3 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.
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...
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. ...
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.
Installing KUHLER H O Liquid Coolers The following instructs how to install the Antec KUHLER H O 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 H O.
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.
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.
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.
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.
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.
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.
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.
Optional Fans One: The One includes mounts for up to three more fans. These mounts are as follows: 1 x front intake 120 mm mount 1 x side 120 mm mount 1 x bottom 120/140 mm mount One S / One S3: The One S / One S3 includes mounts for up to four more fans. These mounts are as follows: 1 x front intake 120 mm mount 1 x side 120 mm mount...
Bottom 120/140 mm fan At the base of the case, there is a fan mount that can fit either a 120 mm or 140 mm fan for additional air intake. 1. Remove the left side panel as outlined in Section 2.2.
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