Test setup
By popular demand, I’m again going for a closed system, which offers a really practical base in the form of a PC put together especially for igor’sLAB by MIFCOM(exemplary product link, not an affiliate). The case used is really good, has enough internal volume and also an excellent airflow. The used AiO compact water cooling in the form of the Silen Loop II from Be Quiet fits visually to the overall concept and the RGB accents of RAM and motherboard can either be set to plain white or turned off completely in case of doubt. If it should get too colorful again.
The PC was assembled nicely by MIFCOM (I’m always like that with the cables) and can be purchased in this configuration (see below) in the same way or modified at the dealer. It was simply important to me here to use a commercially available solution and not my extremely chilled lab hardware in the climate oasis. There is enough space between the side panel (glass) and the graphics card and the storage space of the XL case wasn’t even close to being used.
The material testing and measuring of the cards is done by my new Keyence VHX 7000 including EA-300, which allows exact measurements as well as quite accurate mass determinations of the chemical elements. Laser-induced breakdown spectroscopy (LIBS), which I now use, is a type of atomic emission spectroscopy in which a pulsed laser is directed at a sample to vaporize a small portion of it, creating a plasma. The emitted radiation from this plasma is then analyzed to determine the elemental composition of the sample. LIBS has many advantages over other analytical techniques. Because only a tiny amount of the sample is needed for analysis, damage to the sample is minimal. This technique generally requires no special sample preparation. Even solids, liquids and gases can be analyzed directly.
LIBS can detect multiple elements simultaneously in a sample and can be used for a wide variety of samples, including biological, metallic, mineral and other materials. And you get true real-time analysis, which saves tremendous time. Because LIBS generally does not require consumables or hazardous reagents, it is a naturally relatively safe technique that also does not require a vacuum. As with any analytical technique, there are limitations and challenges with LIBS, but in many of my applications, especially when speed, versatility, and minimally invasive sampling are advantages, it offers distinct advantages.
However, measuring detailed power consumption and other, more in-depth things is done in the lab on two tracks using high-resolution oscilloscope technology (there are various follow-ups to come, after all!) and the MCU-based measurement setup I created myself for motherboards and graphics cards (pictures below) or NVIDIA’s PCAT. Of course I use a redundant system for this, with the same components, because such measurements in the case are rather difficult.
The audio measurements are done outside in my chamber (room within a room).
I have also summarized the individual components of the test system in a table:
- 1 - Introduction, technical data and technology
- 2 - Test setup and methods
- 3 - Teardown: PCB and components
- 4 - Teardown: Cooler and material analysis
- 5 - Gaming-Performance Full-HD (1920 x 1080)
- 6 - Gaming Performance WQHD (2560 x 1440)
- 7 - Details: Power consumption and balancing
- 8 - Transients and PSU recommendation
- 9 - Temperatures, clock rate and thermal imaging
- 10 - Fan curves and noise
- 11 - Summary and conclusion
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