Load peaks (transients) and power supply recommendation
As I have already demonstrated in detail in my basic article “The battle of graphics card versus power supply – power consumption and load peaks demystified”, higher loads in the millisecond range do exist for short periods of time, which can already lead to inexplicable shutdowns in the case of poorly 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 with very fast reacting protection circuits (OPP, OCP), especially with multi-rail power supplies, although the average power consumption is still within the norm.
With the BIOS 2, everything turns out to be a bit bigger, so that you should still expect about 450 to 480 watts of system power even with an additional OC. This should also satisfy all precautions, if it is not an ultra-cheap China banger from PSU or a 10 year old Methuselah. Despite all the joy, exactly little is not even that, unfortunately.
Transients as detail graphics in different resolutions during gaming and stress testing
Let’s look at the spikes in the millisecond range, in the stress test they are more frequent and much more extreme:
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. Let’s start with gaming again and put the stress test on the back burner for now.
In the stress test, on the other hand, no direct difference can be seen in the small intervals:
- 1 - Introduction and technical details
- 2 - Teardown: PCB, power supply and cooler
- 3 - Gaming performance
- 4 - Gaming power draw in detail and efficiency
- 5 - Power consumption, voltages and standards
- 6 - Transients and PSU recommendation
- 7 - Clock rate and temperatures, infrared
- 8 - Overview and conclusion
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