At Antec, we continually refine and improve our products to ensure the highest quality. It’s possible that your new case will differ slightly from the descriptions in this manual. This isn’t a problem; it’s simply an improvement. 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 user’s manuals that come with those components.

Atlas 550 User’s Manual

Atlas 550 – Quiet Mini Server Case

This case comes with a TruePower Trio™ 550 Watt power supply unit (PSU).

It complies with the newest Intel® EPS12V specification. The PSU comes with a main power switch. Make sure you turn the switch to the ON (I) position before you boot up the computer for the first time. Normally, you won’t need to switch to the OFF (O) position, since the PSU includes a soft on/off feature. This lets you turn the computer on and off by using the soft switch on the computer case.

If the computer crashes and you can’t shut it down using the soft switch, you can switch the main power to the OFF (O) position to shut the system down.

Then turn the switch back to the ON (I) position and reboot.

Antec TruePower Trio™ power supplies feature Power Factor Correction (PFC) circuitry in accordance with European standard regulation code EN61000-3-2. By altering the input current wave shape, PFC improves the power factor of the PSU. A better Power Factor increases energy efficiency, reduces heat, improves output voltage stability and prolongs the life of all equipment. The PSU’s high efficiency design and quiet fan deliver not only a cleaner but also a quieter operating environment.

Although care has been taken to prevent sharp edges in your Antec case, we strongly recommend taking your time and the appropriate care when working with it. Hurried or careless motion and use of excessive force, particularly when you are working in areas you cannot see clearly, are but a few examples of activity that should be avoided. Please use reasonable precaution.

Setting Up

1.Place the case upright on a flat, stable surface.

2.Loosen the thumbscrews from the right side panel and remove it by swinging it out. Note: Do not use your fingernails to pry or lift the panels.

3.Inside the case you should see the power supply, some wiring with marked connectors (USB, PWR etc.), the installed I/O panel, a power cord, a plastic bag containing more hardware (screws, brass standoffs, etc.), and six drive rails.

4.There are three plastic tabs on the left side of the bezel that fasten it to the metal chassis. Release the tabs from the top down to release the bezel.

5.Swing the bezel open to about 45º, gently lift it up and it will come off easily. Set the bezel aside in a safe place.

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Antec user manual Atlas 550 Quiet Mini Server Case, Setting Up
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550 specifications

The Antec 550 is a mid-range power supply unit (PSU) that has garnered attention for its reliability and performance, making it a suitable choice for gamers and PC builders alike. This power supply is designed to meet the demands of modern hardware while maintaining efficiency and stability.

One of the standout features of the Antec 550 is its 80 PLUS Bronze certification. This certification indicates that the PSU operates at an efficiency of up to 85% under typical load conditions, which helps reduce electricity costs and decrease the amount of wasted energy. The improved efficiency not only benefits the user economically but also contributes to lower heat output, enhancing overall system stability and longevity.

The Antec 550 is equipped with a semi-modular cable design. This means that essential cables, such as the motherboard and CPU power connectors, are hardwired, while peripheral connectors can be added as needed. This design allows for easier cable management, resulting in cleaner builds and improved airflow within the case. Additionally, the high-quality cables are crafted with durable materials that ensure flexibility and resilience.

In terms of voltage regulation, the Antec 550 features a single +12V rail design that delivers stable power to the components, reducing the risk of power fluctuations that could lead to hardware failures. This single rail design is particularly beneficial for systems with high-performance GPUs, as it delivers ample power when it’s needed most.

The cooling system in the Antec 550 is also noteworthy. The unit is equipped with a 120mm fan, which operates quietly while delivering efficient cooling performance. This fan uses a intelligent temperature-control mechanism that adjusts the fan speed based on the load, ensuring that the unit remains quiet during low demand periods while ramping up to provide adequate cooling under heavier loads.

Finally, Antec prioritizes user safety with a comprehensive set of protection features. The PSU includes over-voltage, under-voltage, over-current, and short circuit protection, ensuring that both the user and their components are safeguarded against unexpected electrical issues.

Overall, the Antec 550 combines efficiency, modularity, and reliability, making it a solid choice for anyone looking to build or upgrade their gaming rig or workstation. Its thoughtful design and robust features serve to deliver stable power for a variety of computing needs.
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