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Sigma Atlantis Case Review

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The Sigma Atlantis case is a nice mid-tower case. I was impressed when it came to the difference in the temperatures. The cores were only a few degrees higher in the Atlantis than my full-tower Armour, which I found amazing due to the size difference in the cases. The fact that the case was built out of a high quality aluminum was great as well as the actual looks of the case, which is one of the biggest things people look for when purchasing a new case. I liked how there were a total of four 120mm fans included with this case as not many cases come with that many fans, especially ones that large. The fact that there was no power supply included in this case could be a downside for someone new to the computer building scene, though for many enthusiasts, this wouldn't be a problem. During the installation phase of my review, I did run into a few problems. When I was attempting to mount the motherboard, the mounting holes on the motherboard would not line up with the motherboard risers. If you removed the rear I/O panel cover, the holes lined up perfectly. The other problem that I had was more specific to my particular motherboard; the heatsink located above the I/O ports on the motherboard was too tall for the 120mm rear exhaust fan. This problem, however, could be solved by removing the fan and mounting a smaller fan, such as an 80mm. Once past the minor hiccups specific to the hardware installed, the case performed admirably in comparison to the other case. If searching for a new case, keep this one in mind.



  • Screwless Side Panel
  • Rotating HDD Cage
  • Fans Included
  • Light Weight
  • Relatively Cool Temperatures
  • Sleek Design


  • A Few Installation Problems


OCC Silver

  1. Introduction & Closer Look
  2. Closer Look Continued (The Case)
  3. Closer Look Continued (Working Components)
  4. Installation
  5. Specifications & Features
  6. Testing
  7. Conclusion
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