Value and Conclusion
- Wentai doesn't intend to enter the retail market with the Aidan T-1616. The OEM prices Wentai shared with me are confidential, so I unfortunately can't state them. What I can state is that should this product find its way to the retail market, expect pricing to be similar to the Corsair AX1600i.
- Tolerant to high operating temperatures
- High overall performance (but not close enough to the AX1600i)
- Tight +12 V load regulation
- Good ripple suppression
- Good transient response, especially at +12V
- Efficient
- >70% efficiency with 2% load
- Efficient 5VSB rail
- Good build quality
- Low inrush currents
- Low vampire power
- Long hold-up time
- Accurate Power OK signal
- Large number of provided cables/connectors
- 2x EPS and 8x PCIe connectors
- 12AWG AC power cord with IEC C19 coupler
- Increased EMI emissions at low frequencies
- Short EPS and ATX cables
- DC Power sequencing has problems (3.3 V rail higher than 5 V)
- Power-on time is greater than 150 ms
- The PSU cannot handle the full load with 100 V input and 110% load with 115 V input
- Weird efficiency drop with 20 W load
- Noisy operation
- Low PF with 230 V input
- Load regulation at 3.3 V and 5VSB not that tight
- No selectable semi-passive operation
- No digital communication with the system
In general, the new Wentai platform is very efficient and scores high enough in our overall performance chart, but not to where it can pose a threat to the Corsair AX1600i. Both build and soldering quality are good, but I did notice some wire bypasses in my sample, which means the design is not finalized yet, so performance could be improved further. A major disadvantage is the average noise output level, which is quite high as the fan spins at very high RPMs, especially under full load. Given the platform's high efficiency levels, there is no need for such an aggressive fan profile.
Another issue I discovered is that the PSU stopped working with 110% load at 115 V input and even 100% load with 100 V input. This is an issue that needs to be addressed—it is unacceptable for such a high-end PSU to fail to deliver its full load with 100 V input.
When it comes to efficiency, the PSU scored very high under both normal and light loads. On top of that, it topped the 5VSB efficiency chart. Moreover, efficiency with 2% load and 115 V input was higher than 70%, which has it meet upcoming ATX specification requirements. Load regulation at 12 V is tight, but not all that tight at 5 V and loose at 3.3 V. Ripple suppression is good, but the Corsair AX1600i beats it at +12 V. The transient response is also quite good, mostly at +12 V. However, PF with 230 V input is quite low, which needs addressing. Its hold-up time is long, and the Power OK signal is accurate. When it comes to the other PSU timings, the power-on time (T1) is higher than 150 ms, which can cause compatibility problems with many mainboards. At the same time, the Power OK delay (T3) is very close to the required limit for alternative sleep mode. DC power sequencing is problematic. According to the ATX specification, the 3.3 V rail should be equal or lower than the other two rails (12 V and 5 V) at all times, which is not the case with the 3.3 V rail being higher than the 5 V rail.
The number of cables/connectors is adequate, with two EPS, eight PCIe, and plenty of peripheral connectors, all of which have 16 AWG gauges. It is strange to see 16 AWG gauges on peripheral connectors. The distance between peripheral connectors is short; these should at least be be 150 mm apart. Finally, the ATX and EPS cables are very short for such a high-end PSU, as it will most likely be used in a large case. Apparently, Wentai chose to equip it with shorter cables for evaluation purposes, as it increases efficiency.
Another disadvantage of the Wentai unit is that it doesn't have a communication bridge with the system. Thus, it cannot be monitored and/or controlled through software, which the Corsair AX1600i supports. Moreover, the OEM prices Wentai shared with me are very high, so I don't see any major brands using this unit for the time being. It surely has lots of potential, but the platform needs work to reach AX1600i performance levels, and the production cost needs to be reduced notably to allow for lower price tags.