Transient Response
20% Load – 20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.069V | 11.985V | 0.70% | Pass |
| 5V | 5.068V | 4.980V | 1.74% | Pass |
| 3.3V | 3.305V | 3.219V | 2.59% | Pass |
| 5VSB | 5.041V | 4.999V | 0.84% | Pass |
50% Load -20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.059V | 11.992V | 0.55% | Pass |
| 5V | 5.064V | 4.980V | 1.66% | Pass |
| 3.3V | 3.296V | 3.206V | 2.72% | Pass |
| 5VSB | 5.015V | 4.972V | 0.87% | Pass |
The transient response is generally good, with the 12V rail achieving top performance.
Transient Response ATX v3.0 Tests
The PSU successfully passed all ATX v3.0 transient response tests.
The SF1000L achieves the highest voltage in its 12V rail during the 200% transient response test, with the SF850L following.
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Is the included 12VHPWR cable sufficient/safe for powering an RTX 4090 FE or should a 3×8 cable/adapter still be used? If it is sufficient and totally safe, does the manual specify which ports to use or doesn’t that matter?
Yes it is ok, and it is set at 600W. You can hook it in any port that fits.