Sharkoon Rebel P20 1200W ATX v3.1 PSU Review

Transient Response

20% Load – 20ms

Advanced Transient Response 20% - 50 Hz - No Caps
Voltage Before After Change Pass/Fail
12V 12.152V 12.016V 1.11% Pass
5V 5.041V 4.943V 1.94% Pass
3.3V 3.332V 3.165V 5.00% Pass
5VSB 5.058V 5.019V 0.77% Pass

50% Load -20ms

Advanced Transient Response 50% - 50 Hz - No Caps
Voltage Before After Change Pass/Fail
12V 12.126V 11.999V 1.05% Pass
5V 5.031V 4.910V 2.42% Pass
3.3V 3.323V 3.149V 5.25% Pass
5VSB 4.993V 4.932V 1.21% Pass

The transient response is decent since it is close to 1%, but the competition is tough in this section. In both tests, I would like to see a lower voltage drop at 3.3V, which drops well below the 3.2V mark.

Transient Response ATX v3.1 Tests

The PSU passes all ATX v3.1 transient response tests.

The 12V rail performs well here, achieving third place in the 200% load test.

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