Seasonic Core GX-750 ATX 3.1
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Seasonic Core GX-750 ATX 3.1
The Seasonic Core GX-750 computer power supply in black powers modern gaming and work setups with 750W of power. This ATX 3.1 PSU ensures reliable operation with components that require a high instantaneous power draw, such as NVIDIA RTX 40 series and future generation graphics cards. Thanks to its 80 PLUS Gold certification, it delivers power with high efficiency and minimal heat loss. The fully modular system with black braided cables helps with tidy cable management and enhances the aesthetic of clean builds with a glass side panel.
750W
Power
ATX
Format
80 PLUS Gold
Certification
Fully
Modularity
Key technologies of the Seasonic Core GX-750 ATX 3.1 computer power supply
- Provides high total power output
- Meets ATX 3.1 and PCIe 5.1 standards required by modern components
- Operates with high efficiency according to 80 PLUS Gold certification
- Fully modular cabling simplifies installation and improves airflow
- Includes a native 12V-2x6 connector
- Cooling is provided by a fan with a fluid dynamic bearing
- Intelligent S2FC speed control maintains low noise levels
- Includes a set of six types of electrical circuit protection
Choosing a power supply
When choosing a suitable PC power supply, the key parameter, besides the format, is its power output. This indicates the maximum number of Watts the PSU can continuously supply to the computer's components. It's a good idea to use a web calculator to determine the optimal power output based on your chosen components.
Future-ready with ATX 3.1
Compliance with the ATX 3.1 specification means the power supply is fully prepared for the hardware demands of current and future components. The ATX 3.1 specification defines stricter voltage tolerances and the ability to handle the extreme power spikes required by graphics cards with a PCIe 5.1 interface. This standard addresses short but high energy surges, preventing system instability and unexpected restarts under maximum load.
Native 12V-2x6 connector of the Seasonic Core GX-750
The power supply includes a native 16-pin 12V-2x6 cable for directly powering PCIe 5.1 standard graphics cards. This connector delivers up to 600W of power to the card through a single cable, eliminating the need for adapters. The direct connection simplifies installation, reduces the number of connections as potential points of failure, and frees up space for better airflow in the case.
Backwards compatibility with older cards
To maintain compatibility with older graphics cards, the package includes a special adapter. This adapter converts the 12V-2x6 connector to two standard 8-pin PCIe connectors. This means the power supply can also power graphics cards that require traditional power connectors without any issues. This solution provides flexibility when gradually upgrading a computer build, as you don't have to change the power supply and graphics card at the same time.
Fully modular design of the computer power supply
A fully modular cabling system gives you control over which cables you use in your build. You only connect the necessary ones, which significantly simplifies cable routing and management of the internal space. Reducing excess cables also clears the way for airflow, contributing to more efficient component cooling.
Efficient and quiet cooling
A 120mm fan takes care of cooling the internal components. The fan uses a fluid dynamic bearing (HDB), which minimises friction and operational noise thanks to fluid lubrication. This type of bearing provides longer operational reliability and a stable acoustic profile throughout its lifespan compared to standard sleeve bearings.
S2FC technology
The power supply uses Smart and Silent Fan Control (S2FC) technology. This system intelligently regulates the fan speed depending on the current load and temperature. At low loads, it keeps the fan in a passive mode with zero RPM, achieving completely silent operation. The fan only activates once a defined load threshold is exceeded, when cooling is actually needed.
Improved heat dissipation with OptiSink
The internal PCB layout utilises OptiSink technology. This solution optimises the placement of heat-generating components, such as MOSFET transistors and heatsinks. It improves the natural dissipation of thermal energy from key components and limits the formation of local hot spots. More effective cooling increases the reliability and extends the lifespan of the entire power supply.
Comprehensive set of protections for the computer power supply
The power supply protects connected components with a complete set of electrical protections. This set includes over-voltage, under-voltage, over-current, overload, short-circuit, and over-temperature protection. These circuits continuously monitor operating values and, in the event of an anomaly, immediately disconnect the power to prevent hardware damage.
High efficiency
The 80 PLUS Gold certification confirms the power supply's high energy efficiency. At 50% load, it operates at 90% efficiency, which means only 10% of the energy is converted into waste heat. Lower heat losses reduce cooling demands, leading to quieter operation, and the efficient performance also results in lower electricity consumption.
Connectors
- 1× ATX 24-pin
- 2× CPU 8-pin (4+4)
- 3× Molex 4-pin
- 2× PCI-E 8-pin (6+2)
- 6× SATA 15-pin
- 1× 12V-2x6 16-pin
Package contents
- Seasonic Core GX-750 power supply
- 1× Power cable
- 1× ATX 24-pin (20+4)
- 2× CPU 8-pin (4+4)
- 1× PCI-E 8-pin (6+2)
- 2× SATA 15-pin
- 1× Molex 4-pin
- 1× 12V-2x6 16-pin (12+4)
80 Plus certification in the European market
The 80 Plus certification was created to objectively assess the efficiency of PC power supplies. This provides users with a simple and clear comparison of different models. In the European market (where 230V is used), there are six levels of 80 Plus certification with set requirements for PC power supplies. Higher energy efficiency primarily means lower energy consumption.
| PC power supply load | Efficiency at 20% load | Efficiency at 50% load | Efficiency at 100% load |
|---|---|---|---|
| 80 PLUS | 82% | 85% | 82% |
| 80 PLUS Bronze | 85% | 88% | 85% |
| 80 PLUS Silver | 87% | 90% | 87% |
| 80 PLUS Gold | 90% | 92% | 89% |
| 80 PLUS Platinum | 92% | 94% | 90% |
| 80 PLUS Titanium | 94% | 96% | 94% |
Specifications
Performance and format
Equipment
Efficiency
Connectors
Cooling system
Sea Sonic Europe BV, Rietveld 7, 5258 ED Berlicum, Netherlands [email protected]
Specifications can be changed without notice. Images are for illustrative purposes only.
