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Cooler Master Cosmos II Ultra Tower Review



To test the cooling prowess of this mass of case. I decided that rather than install a more conventional system. I would use it to house my quad GPU gaming system to see how it deals with lots of heated up graphics cards and the dreaded "heat stack effect". All cases, including the comparison cases were tested under the same conditions and with stock fan placement only.  All temperatures readings are taken with HW Monitor, CPU and Chipset temperatures were taken after 30 minutes of OCCT's standard CPU stress test. For Hard drive temperatures I opted for a real life scenario of taking the highest temperature after 30 minutes of downloading an identical large file. Idle temperatures were all taken after 30 minutes idling after the specific task or load testing. The ambient room temperature during the testing was a constant 22C

Test System:

  • Processor: AMD FX-8120
  • Motherboard: Gigabyte GA-990-FXA-UD7
  • CPU Cooling: Thermalright Silver Arrow (3-Fan)
  • Video Card(s): 4 x Sapphire HD 6970 Quadfire
  • PSU #1: Corsair HX650W
  • PSU #2:  FSP Group X5
  • PSU #3:  FSP Group X5
  • Hard Drive(s): 4 x Seagate Barracuda 500GB 7200 RPM 7000.12
  • Hard Drive(s): 1 x Seagate Barracuda 750GB 7200 RPM 7000.12


Comparison Cases:

  • Cooler Master Cosmos II
  • Xigmatek Elsyium
  • CoolerMaster HAF 932










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