Testing
The following system was used to test the cooler:
– Processor: Intel i9 9900K @ 5GHz
– Motherboard: ASRock Z390 Phantom Gaming X
– RAM: Neo Forza Faye DDR4 64GB 4000MHz
– GPU: MSI GeForce RTX 3090 Ti Suprim X
– SSD: Crucial P5 1TB
– Mass storage: NeoForza NFP075 2TB
– CPU Cooler: Cooler Master Master Liquid 240 with NoiseBlocker eLoop B12-PS
– Display: AOC i2769VM
– Case: be quiet! Silent Base 802 White
– OS: Windows 10 64-Bit (After April Update)
The above system has a power consumption of approximately 720W when in full load and 50W when idle, in order to test the efficiency of the Power Supply, the power draw of the system was measured at the wall socket. Also, the voltages were measured on the +12v +5v and +3.3v using a digital multi-meter.
To load the system to its maximum the stability test of the AIDA64 Extreme 6.85.6300 was used with Intel Burn Test V2.
The Power Supply was tested with the system both idle and at maximum load.
Power Supply efficiency
For rail voltage tolerance levels, ATX (Power Supply Design Guide) specify that a 5% variable fluctuation is acceptable.
Voltage oscillation Load
The noise level was measured at three different distances from the fans (10cm, 20cm, 30cm.) the noise was measured with a margin of error of ± 5 db.
Final thoughts
The Seasonic Syncro Connect DGS-750 Gold is an interesting power supply to say the least. Not only does it have a unique cable system but it provides a good base for a gaming system, using the same internal layout as the Seasonic Focus & Prime series.
In terms of the performance of the power supply, all is well, with a good efficiency and low voltage oscillation across the board. In addition, the internal construction is great, and on the same level as the Focus series of power supplies. When we talk about the internal build quality, we’re talking mostly about the soldering and the general layout of the components, which is good.
The Syncro Connect modular system is interesting, it’s easy to use and frees up space inside the power supply, thus, you don’t need a powerful fan spinning at maximum RPM all the time. The Connect system will help somewhat with the cable management, as it is a clean solution to route the cables from the power supply to the case, and afterwards you choose which cables you need.
However, if we have a drawback with this power supply, it must be the noise of the fan and the fact that the Syncro Connect module will not fit in all cases. The 135mm fan will spin at close to its maximum speed even with a medium load, a thing which shouldn’t happen, especially with such an exquisite power supply. While the Syncro Connect module cannot be installed in all form factor cases, especially in some Micro ATX cases.
The included cables are the standard Seasonic cables, all black and flat ribbon style. However, the cable that goes from the Syncro Connect module to the power supply is not flat at all.
In conclusion, the Seasonic Syncro Connect DGS-750 Gold is a great power supply with a unique cable management system. The performance is what you’d expect from a high end Seasonic power supply and the same can be said for the build quality. The only drawbacks of this power supply are the loud fan and the form factor of the Syncro Connecto module which might be tricky to install in some cases.
