Transient Response
20% Load – 20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.211V | 12.120V | 0.74% | Pass |
| 5V | 5.087V | 4.947V | 2.76% | Pass |
| 3.3V | 3.365V | 3.195V | 5.07% | Pass |
| 5VSB | 5.072V | 5.030V | 0.83% | Pass |
50% Load -20ms
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.202V | 12.106V | 0.79% | Pass |
| 5V | 5.081V | 4.939V | 2.79% | Pass |
| 3.3V | 3.357V | 3.180V | 5.27% | Pass |
| 5VSB | 5.033V | 4.991V | 0.83% | Pass |
The transient response is within 1%, but the competition is tough in this section, with the ages EVGA 1600 T2, based on Super Flower’s Leadex platform, leading the race.
Transient Response ATX v3.0 Tests
The PSU successfully passed all ATX v3.0 transient response tests, but the deviations at 12V are high.
The 12V rail has a massive drop in the 200% transient response test. Delta needs to fix the 12V rail’s transient response because it is the most important rail.
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Despite being discontinued, the AX1600i was built by Flextronics and had a less than optimal failure rate. The XPG Fusion 1600 is OEMed by Delta Electronics who has MASSIVE experience with exactly the type of implementation seen with this unit. I doubt we’ll see even 1/10 of the failure rate we saw with the discontinued AX1600i. Delta are experts in this field and, to be honest, this price point seems fair. This is not a “consumer PSU” but one aimed at those seeking the very best PSU. The Seasonic really does not compete with it technology-wise. This is a unit with a 12 year warranty for a reason; Delta are experts in exactly this type of design.
The table with the characteristics indicates the maximum power of 850 watts. It’s not a mistake?
Yes, I will fix it.