CORSAIR Obsidian 750D Computer Case Review

Cases & PSU/Cases by leeghoofd @ 2013-10-03

CORSAIR has established grounds in the enclosure market. At start only with the high end versions  in the form of the Obsidian and Graphite cases. Later on targeting another segment of the market, with the more affordable cases, under the Carbide brand name. The Obsidian series are straight competition for big names as Lian-Li, sporting high build quality, offering maximum hardware compatibility and they are multi GPU ready, plus the possible liquid-cooling options are a big bonus. The mixture of steel and brushed aluminum,  enhances  the rigidity and adds that little extra touch of elegance to the CORSAIR Obsidian enclosures. The brand new 750D model is a full blown tower case and looks at first glance like a trim-down version of the 900D flagship. Nevertheless what is most exciting is, that this case is retailing at the price of a high end Mid-Tower chassis. Time to take a closer look at the CORSAIR 750D Obsidian case.

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Test Setup and Methodology

Compared to previous case reviews Madshrimps opted to install a single AMD 7970 graphics card instead of the regular two GTX480s we usually used when reviewing gaming enclosures. For the cooling tests the case is equipped with the Corsair H100i Hydro cooler.

The hardware comprises of the following parts:


For the IDLE tests we allow the setup warm up during a 30 min period. The temperatures of the CPU cores are monitored by the Realtemp software. The temperatures of the motherboard components are read out by the ASUS Thermal Radar software. For the stress test we go flat out and test our the six cores of the overclocked i7-3960X CPU (4500MHz) with the Prime95 64bit software with a custom 12-12K setting. For the GPU test we ran a 3 time loop of the Futuremark Vantage 3D bench software to heat up the graphics core.

Here are some screenshots of the ASUS Thermal RADAR software in action:





  • Form Factor: Full-tower with side panel window
  • Motherboard support: ATX, E-ATX, XL-ATX, mATX and  Mini ITX
  • Material: Brushed aluminum, plastic and steel
  • Storage: 2 x modular drive cages, with each 3 Tool-free HDD trays
  • Storage: 4 x Tool-free dedicated SSD cages
  • Expansion slots: 9
  • Cooling: 3 x 140mm AF140L fans ( room for up to 8 fans )
  • Water Cooling: top 360mm supported, front and bottom 240mm supported
  • Front I/O: 2 x USB 3.0, 2 x USB 2.0, headphone & microphone, power & reset button
  • Maximum CPU Cooler Height: 170mm
  • Maximum GPU Length: 450mm
  • Dimensions: 21.5 x 9.3 x 22 inches or 546 x 235 x 560mm
  • Weight: 9.7kg
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