Transient Response
20% Load – 20ms
| Advanced Transient Response 20% - 50 Hz - No Caps | ||||
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.121V | 11.921V | 1.65% | Pass |
| 5V | 5.048V | 4.966V | 1.63% | Pass |
| 3.3V | 3.331V | 3.201V | 3.90% | Pass |
| 5VSB | 5.079V | 5.029V | 0.97% | Pass |
50% Load -20ms
| Advanced Transient Response 50% - 50 Hz - No Caps | ||||
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.102V | 12.009V | 0.76% | Pass |
| 5V | 5.035V | 4.960V | 1.49% | Pass |
| 3.3V | 3.318V | 3.193V | 3.78% | Pass |
| 5VSB | 5.054V | 5.016V | 0.74% | Pass |
The transient response is good at 12V and 5V, given the unit’s maximum power. Although the deviation at 3.3V is not high, the voltage at this rail dropped below 3.2V in the second test (without extra capacitance utilized).
Transient Response ATX v3.1 Tests
The PSU passes all ATX v3.1 transient response tests, keeping its rails at high voltages.
Very good performance here for the 12V rail. Keep in mind that for a 550W unit, the 200% transient load is 1100W, while for a 650W unit, it is 1300W.
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Are you willing to evaluate the lowest category Be Quiet series as well? Most notably the brand new System Power 11 series? It has 450W and 550W members, and it is the cheapest Be Quiet PSU on the market. A lot of people are buying them, without knowing how dangerous (or safe?) they are, after the System Power 10 test turned out that they are not that terrible, contrary to the tribal knowledge (System Power 10 Bronze series has been downgraded to Tier E on the SPL PSU Tier list).
If they send them to me sure. SP used to be pretty good for their money.
Can you ask them?
Typo: All links on first page lead to 550W models except for the first one with 1000W.
thanks! fixed