Inline PSU Tester – User’s Guide Page 25
Test Results:
Figure 20
- Failed to meet the power sequencing criteria (V column showed a red circle). This
was confirmed by looking at 5V and 3.3V rails by an oscilloscope. As you can see
in the below screenshot, the 5V rail was greater than 3.3V for the first 500
microseconds. However, this is not a big issue as the voltage difference is small
(<300mV) and the duration is very short (400 microseconds). This failure alone is
not enough to render this PSU as faulty or not usable.
Figure 21
- All voltages were within the specification under different loads (Tested at no load,
20% and 50% loads).
- Efficiency: Using BurnInTest, we put system under load by running a
combination of tests simultaneously.
Test load 1: CPU (General purpose instructions, 4 Threads)
Test load 2: CPU (General purpose instructions, 8 Threads) and 3D Graphics test
(window size 640x400 pixels)
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