It didn’t matter if I used smaller aluminum polymer capacitors or the large capacitance aluminum electrolytic capacitors, the load spikes (current spikes) were always there. These simple solutions are therefore not suitable for preventing these load peaks; one would have to work with an additional longitudinal coil between the capacitor and the power supply side, which would however drive the losses even higher. Capacitors only smooth voltages and unfortunately not currents.
However, there were no excessive voltage fluctuations, whether with or without capacitor(s). The generated load peaks by NVIDIAs Boost are mostly in the range of less than 100 KHz, so they are rather located in the LF range, with Power Tune and AMD even a bit lower. Neither is dangerous. So why these capacitors, which cannot buffer even ultra-short current peaks in any dimensioning and design, but together with the cable resistance only generate even more reactive power? The efficiency also drops slightly, but the spikes remain.
In the end, it is once again the dear marketing that has opened up a new treasure trove here and advertises with things that can hardly be proven even metrologically and are even downright wrong in the principle of the statement. Only the visitor of such websites will hardly notice this and will gladly buy. He will also not know that often enough a large part of the load peaks, depending on the graphics card model, also runs through the mainboard and can continue to cause acoustic annoyance of the audio hardware there and then annoy the power supply at the 24-pin connector.
By the way, the most important and actually only advantage of such solutions has been completely forgotten: the “transmission power” of the PCIe connection cables is still somewhat reduced with NVIDIA cards without LC filters, which is articulated in somewhat lower intermodulations with poorly shielded audio hardware. So, with a little luck, you actually hear a little less than you see, except this is actually a completely different issue. Smaller solids are clearly superior to electrolytic capacitors.
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