Transient Response
20% Load – 20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.008V | 11.857V | 1.25% | Pass |
| 5V | 5.077V | 4.990V | 1.72% | Pass |
| 3.3V | 3.307V | 3.198V | 3.28% | Pass |
| 5VSB | 4.947V | 4.909V | 0.76% | Pass |
50% Load -20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 11.962V | 11.870V | 0.77% | Pass |
| 5V | 5.071V | 4.986V | 1.69% | Pass |
| 3.3V | 3.301V | 3.185V | 3.50% | Pass |
| 5VSB | 4.931V | 4.892V | 0.80% | Pass |
The transient response deviations are not high, especially on the minor rails. Nonetheless, I don’t want the 3.3V rail dropping below 3.2V in these tests. With an increase at the nominal voltage, this wouldn’t be the case.
Transient Response ATX v3.1 Tests
The PSU passes all ATX v3.1 transient response tests.
The 12V rail performs well, registering controlled voltage drops.
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