Intel DG41MJ: Affordable 775 Mini-ITX

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TEST METHODOLOGY

Test Setup:


System device listing.

Measurement and Analysis Tools

Our main test procedure is designed to determine the overall system power consumption at various states (measured using a Seasonic Power Angel). We stress the CPU using CPUBurn (K7 or P6 setting) or Prime95 (large FFTs setting). To stress the IGP, we use FurMark's stability test or ATITool's artifact scanner/3DView. We use which ever CPU/GPU stress software/setting that produces the highest system power consumption.

We also test platform's proficiency at playing back high definition videos. Standard Blu-ray movies, by design, can be encoded in three different codecs: MPEG-2, H.264/AVC and VC-1. MPEG-2 has been around for a number of years and is not demanding on modern system resources. H.264 and VC-1 encoded videos on the other hand, due to the amount of complexity in their compression schemes, are extremely stressful and will not play smoothly (or at all) on slower PCs, especially with antiquated video subsystems.

Our main video test suite features a variety of 1080p H.264/VC-1 encoded clips. The clips are played with PowerDVD and a CPU usage graph is created by the Windows Task Manger for analysis to determine the approximate mean CPU usage. High CPU usage is indicative of poor video decoding ability on the part of the integrated graphics subsystem. If the video (and/or audio) skips or freezes, we conclude the board's IGP (in conjunction with the processor) is inadequate to decompress the clip properly.

SpeedStep was enabled during testing (unless otherwise noted). The following features/services were disabled during testing to prevent spikes in CPU/HDD usage that are typical of fresh Vista installations:

  • Windows Sidebar
  • Indexing
  • Superfetch

Video Test Suite


1080p | 24fps | ~10mbps
H.264: Rush Hour 3 Trailer 1 is a H.264 encoded clip inside an Apple Quicktime container.


1080p | 24fps | ~8mbps
WMV-HD: Coral Reef Adventure Trailer is encoded in VC-1 using the WMV3 codec commonly recognized by the "WMV-HD" moniker.


1080p | 24fps | ~19mbps
VC-1: Drag Race is a recording of a scene from network television re-encoded with TMPGEnc using the WVC1 codec, a more demanding VC-1 codec.


1080p | 24fps | ~33mbps
Blu-ray: Disturbia is a short section of the Blu-ray version of Disturbia, the motion picture, played directly off the Blu-ray disc. It is encoded with H.264/AVC.



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