Seasonic M12 700W

Written by Michael Larabel in Power Supplies on 3 November 2006 at 01:00 PM EST. Page 3 of 3. Add A Comment.

Performance:

For testing we had loaded the Seasonic M12 700W into a power-hungry Pentium D system. Due to the non-existent CrossFire support under Linux, and the extremely poor quality of NVIDIA Linux SLI, we had used a single graphics card during testing.

Hardware Components
Processor: Intel Pentium D 820
Motherboard: Abit AW9D (i975X)
Memory: 2 x 1GB Mushkin DDR2-800
Graphics Card: ATI Radeon X1800XT 256MB
Hard Drives: Seagate Barracuda 7200.9 300GB
Optical Drives: Sony DVD-RW
Power Supply: Seasonic M12 700W
Software Components
Operating System: Fedora Core 6

Setting up the modular power supply was extremely easy and we had run into no problems during the installation process nor were any of the power connectors flimsy. As to the noise level during operation, the Seasonic M12 power supply was among the quietest of power supplies that we have heard. Once again, we used our standard testing practice of recording the idle voltages after thirty minutes of idling, and the load was recorded after running CPU Burn-In and Doom 3 for the same amount of time. All power management features were disabled during this process and the voltages were measured using a calibrated digital multimeter.

Conclusion:

The voltages were dead on to their theoretical values, and the fluctuation was minimal between idle and load. Ideally we would have liked to see the +5.00V rail slightly elevated, but the +12V lines were great. The noise level was also minimal for this environment. From what we have seen with the Seasonic M12 700W, we were delighted by its performance and features. The main disadvantage with this 700W model is its price; at the time of writing the M12 SS-700HM is selling for $210 USD. If price is no limit for you, the Seasonic M12 series should definitely be worth trying out.

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Michael Larabel

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.