Corsair Obsidian 550D Quiet Mid-Tower Case

Cases|Damping
Viewing page 5 of 8 pages. Previous 1 2 3 4 5 6 7 8 Next

TESTING

System Configuration:

Measurement and Analysis Tools

System temperatures and noise levels were recorded with SpeedFan and GPU-Z at idle and on load using CPUBurn (K7 setting) and FurMark, an OpenGL benchmarking and stability testing utility.

Baseline Noise


Stock 12 cm fans.

The Obsidian 550D stock fans are quieter than most, each producing less than 20 dBA@1m. Rubber washers are also included on most of the placements to reduce vibration. We have no complaints about the fan acoustics — quite smooth, with only a hint of bearing chatter well-muffled by the case panels.

Stock Fan Noise Level
Fan
SPL @1m (dBA)
9V
10V
11V
12V
Rear
12
14
16
17~18
Top (moved from Front)
15~16
18
18~19
19
Front
14
15
17
18
Combined
 
7V
9V
12V
15
19
24
Measuring mic positioned 1m at diagonal angle left/front of case.

As the two intake fans produce the same amount of noise, we moved one of them to the top position to mix things up. The front position is typically the loudest, but in this case, the door shields it well, so it ends up sounding about the same as the fan in the rear. Putting a fan on top makes it slightly louder as the top panel lacks structural integrity; it hangs from a large, unsupported honeycomb grill making it susceptible to vibration. The combined noise level of the three fans is quite low, just 24 dBA@1m at full speed, 19 dBA@1m at 9V, and 15 dBA@1m at 7V.


At 9V, the stock fans generated a noise level of 19 dBA@1m with a generally smooth, broadband character.



Previous 1 2 3 4 5 6 7 8 Next

Cases|Damping - Article Index
Help support this site, buy the Corsair Obsidian Series 550D Mid-Tower Silent Case from one of our affiliate retailers!