Epilogue
As was the case for the 850W model and its equivalent PN-M unit, the Deepcool PQ750G offers a better option than the PN750M, which uses CWT’s omnipresent CSZ platform. The overall performance is high enough to take the lead from many units in this category, some of which are probably more expensive. Compared to the 1000W and 1200W members of the line, the 850W and 750W models achieve far better performance for the standards of the corresponding categories. I should note here that the 850W and 750W models use a platform different from that of the strongest members of the line.
Load regulation is within 1% at 12V and 5V but it needs to be tighter at 3.3V. Ripple suppression is decent and the transient response at 12V is good. Efficiency at normal loads needs boosting and the same goes for efficiency with a 2% load, which doesn’t exceed 70% as the ATX spec recommends. The PSU’s average efficiency is satisfactory, and the APFC converter performs well. The 5VSB rail is also highly efficient, and vampire power is low.
The average noise output is above 30 dBA, meaning that this is not a quiet operating PSU. Regarding the unit’s cooling fan, unfortunately, the 750W and 850W models use a lower-quality one compared to the 1000W and 1200W members of the line.
In the protection features section, which is among the most crucial, the things that need attention are the high OCP triggering points on the minor rails and their minimal deviation between cold and hot OCP triggering points. Typically, the triggering points should fall notably under hot conditions to provide better protection. This small deviation is also a problem for 12V OCP under hot and cold temperatures.
Deepcool informed me that this line will be available in other markets besides the Chinese one into this year, and the price will be attractive. If the PQ750G has a lower price than the PN750M, which currently goes for 118 dollars, it will be a good choice.
Other 750W ATX v3.x PSU reviews:
- XPG Core Reactor II VE 750W PSU Review
- Enermax Revolution D.F.12 750W PSU Review
- Cooler Master GX III 750W ATX v3.0 PSU Review
- XPG KYBER 750W ATX v3.1 PSU Review
- Thermaltake Toughpower PF3 750W PSU Review
- Thermaltake Toughpower GF A3 750W PSU Review
- Thermaltake Toughpower GF3 ARGB 750W PSU Review
- Thermaltake Toughpower SFX 750W Gold PSU Review
- ASUS TUF Gaming 750W Bronze PSU Review
- Thermaltake Toughpower GF3 750W ATX v3.0 PSU Review
- XPG Core Reactor II VE 650W PSU Review
- DeepCool PN750D ATX v3.1 PSU Review
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- Delivered full power at 47°C
- ATX v3.1 and PCIe 5.1 ready
- Good build quality
- Good transient response at 12V
- Within 1% load regulation at 12V and 5V
- Long hold-up time
- Low inrush currents
- Well-performing APFC converter
- Properly set 12V OCP and OPP
- Efficient 5VSB rail
- Low standby power
- Alternative Low Power Mode (ALPM) compatible
- Fully modular (individually sleeved cables)
- Enough cables and connectors, including a high-power one (12+4 pin, 600W)
- Compact dimensions (140mm depth)
- OCP triggering points need tuning
- Not quiet operation
- Not a high-quality cooling fan
- Lower than 70% efficiency with a 2% load
- Mediocre transient response on the minor rails
- Loose load regulation at 3.3V and 5VSB
- EPS cables should be 650mm long
- Short distance (120mm) between peripheral connectors
