Transient Response
20% Load – 20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.127V | 11.925V | 1.67% | Pass |
| 5V | 5.062V | 4.975V | 1.71% | Pass |
| 3.3V | 3.354V | 3.247V | 3.20% | Pass |
| 5VSB | 5.029V | 4.990V | 0.79% | Pass |
50% Load -20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.086V | 12.010V | 0.63% | Pass |
| 5V | 5.056V | 4.980V | 1.51% | Pass |
| 3.3V | 3.344V | 3.232V | 3.35% | Pass |
| 5VSB | 5.004V | 4.966V | 0.75% | Pass |
The transient response is good on the minor rails, but the average deviation is high at 12V. The 12V rail has a notable voltage drop in the first transient test (20% load), where the resonant controller seems to operate at PWM mode.
Transient Response ATX v3.1 Tests
The PSU passes all ATX v3.1 transient response tests.
The 12V rail is 0.21V away from the top performer in the 200% transient load test. Of course, a smaller gap would be preferable.
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Thought I would share my findings.
Firstly thank you crmaris for the good review based on this I decided to get the NZXT C1200, retiring my Corsair AX1200 (it’s now more than 10 years old). I found that I am using less power now, around 0.5Amps or 115 Watt (@ 230V) less power now, I tested playing the same game for the same period and logging with my Fluke 367FC. I did find that the inrush current is a bit higher at 5.2A, vs the 4.7A my corsair had. But overall super happy.
For my next build, I’m going for a complete white build. Luckily, this psu comes in white, but i saw in a video from Der Bauer that the cables are very loosely connected to the psu. Was this also the case for your unit?
https://youtu.be/rjcoCbJoDYc?si=Kl8iYOIIdaQoJ8Gg&t=693
Could you als do a review of the Phanteks revolt 1200?
The difference between the original C1200 and ATX 3.1 version is not just limited to the 12V-2×6 connector. The new version also has one extra PCIe connector, which is good if you have a GPU with three PCIe connectors like the 7900 XTX from AIBs.
Are there any plans to test the be quiet! Straight Power 12 80+ Platinum?
Yes, but I don’t know when I will find the time for it.