Transients and power supply recommendation
As I have already demonstrated in detail in my basic article “Der Kampf von Grafikkarte gegen Netzteil – Leistungsaufnahme und Lastspitzen entmystifiziert”, higher loads in the millisecond range do exist for short periods of time, which can lead to inexplicable shutdowns if the power supply units are not properly designed or equipped. The TBP (Typical Board Power) measured by the graphics card manufacturer or the reviewers is not really helpful for a stable system design.
Peaks with intervals between 1 and 10 ms can lead to shutdowns in very fast-response protection circuits (OPP, OCP), especially in multi-rail power supplies, although the average power consumption is still within the norm. For this card, I would therefore calculate at least 180 to 190 watts as a graphics card load proportionate to the system’s total power consumption on the secondary side in order to have enough reserves for the worst case scenario.
The Colorful iGame GeForce RTX 3050 8GB shows low load peaks, also due to the decent power supply. A short excerpt with higher resolution now shows us the 20-ms measurements (10 μS intervals), as I run them automatically to determine the value:
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