m-ITX Cases: SEED MA-280B and Cooler Master Elite 100

Cases|Damping
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Cooler Master Elite 100 - Power Supply & Baseline Noise


The included power supply has one floppy, two 4-pin molex, and two SATA power connectors.


Rated for 150W.

As the power supply had a fan, we powered it on inside the case to get a baseline noise measurement. Over the years, we've generally found FlexATX form factor power supplies to be noisy beasts. The PSU in the Elite 100 did not disappoint; it greeted us with one of the most annoying noises we've encountered in recent memory.


The measured noise level was 24 dBA@1m and 28 dBA@0.6m.

The fan had severe tonal properties, with multiple peaks through the audible range as seen in our spectral analysis. After being on for 10 minutes without a load, the noise level measured 24 dBA@1m and 28 dBA@0.6m. These measurements do not do the power supply fan justice — subjectively it was a lot worse than the measured SPL would indicate, droning like nobody's business. Ultimately we decided the Elite 100 was simply not worth testing any further. Its baseline noise level is terrible even without a load — with a system that actually requires power, it could only get worse.

AUDIO RECORDINGS

These recordings were made with a high resolution, lab quality, digital recording system inside SPCR's own 11 dBA ambient anechoic chamber, then converted to LAME 128kbps encoded MP3s. We've listened long and hard to ensure there is no audible degradation from the original WAV files to these MP3s. They represent a quick snapshot of what we heard during the review.

Each recording starts with ambient noise, then 10 second segments of product at various states. For the most realistic results, set the volume so that the starting ambient level is just barely audible, then don't change the volume setting again while comparing all the sound files.



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