Transient Response
20% Load – 20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.095V | 11.758V | 2.79% | Pass |
| 5V | 5.004V | 4.883V | 2.41% | Pass |
| 3.3V | 3.284V | 3.151V | 4.04% | Pass |
| 5VSB | 5.039V | 4.978V | 1.20% | Pass |
50% Load -20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.074V | 11.901V | 1.43% | Pass |
| 5V | 4.993V | 4.866V | 2.55% | Pass |
| 3.3V | 3.275V | 3.135V | 4.28% | Pass |
| 5VSB | 4.995V | 4.932V | 1.27% | Pass |
The 12V rail doesn’t perform well here because, in the 20% load test, the PSU operates in the PWM region, not the FM one. The 3.3V rail also drops too low, at the lowest threshold in the 50% load test.
Transient Response ATX v3.x Tests
The PSU passes all ATX v3.1 transient response tests, but the 3.3V rail drops below 3.2V in the 200% load test.
The 12V rail’s performance doesn’t impress here, although you cannot call it bad or mediocre.
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