Transients and power supply recommendation
As I already proved in detail in my basic article “The battle of graphics card vs. power supply – power consumption and load peaks demystified”, higher loads in the millisecond range do exist for a short time, which can already lead to inexplicable shutdowns in unfavorably designed or improperly equipped power supplies. 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 secondary power consumption in</x-1> order to have enough reserves for the worst case scenario.
MSI’s Gaming X shows significantly lower load peaks, also due to the better voltage 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:
- 1 - Intro, Data, Unboxing and Test System
- 2 - Teardown: PCB Analysis and Cooler
- 3 - Gaming Performance Full-HD and WQHD
- 4 - Power Consumption and PCI SIG Standards
- 5 - Transients and PSU Reccommendation
- 6 - Temperatures and Thermal Images
- 7 - Fans, Noise and Requency Analysis
- 8 - Summary and Conclusion
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