Hiper Media Center PC HMC-2K53A-A3

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POWER / ENERGY EFFICIENCY

In our Asus M2A-VM HDMI review, a board using the same 690G chipset, we were able to get power consumption down to 35W idle — which is substantially better than the HMC A3. This is due in most part to the inefficiency of Hiper's power supply, which is the same unit used in the previous H2 model. The Hiper power supply also powers the IR remote system, wireless networking, the VFD, and an optical drive and memory card reader, but these are not particularly energy intensive devices. Our motherboard test platform uses a Seasonic 80Plus compliant power supply with active PFC. It's the main reason that the system with the similar Asus board drew so much less power.

Hiper would be well advised to utilize a higher quality power supply unit. Not only would this result in energy savings, but with less power lost to inefficiency transferred as heat, the fan speeds could be lowered to make it a quieter system. The use of an external power brick might also work well.

NOISE RECORDINGS IN MP3 FORMAT

We are re-using the noise recordings from the earlier HMC model, since the sound levels are identical. Each of these recording starts with six seconds of "silence" to let you hear the ambient sound of the room, followed by 10 seconds of the product's noise.

HOW TO LISTEN & COMPARE

These recordings were made with a high resolution, studio quality, digital recording system, 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. The microphone was one meter away from the product.

These recordings are intended to let you hear how the reviewed item sounds in actual use — one meter is a reasonable typical distance between a computer or computer component and your ear. The recording contains stretches of ambient noise that you can use to judge the relative loudness of the subject. For best results, set your volume control so that the ambient noise is just barely audible. Be aware that very quiet subjects may not be audible — if we couldn't hear it from one meter, chances are we couldn't record it either!

More details about how we make these recordings can be found in our short article: Audio Recording Methods Revised.


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