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This review was written with a product provided free of charge by SuperFlower.

ATX 3.1 Supported Cost-Effective Power Supply SuperFlower SF-850C12DB Installation Review

Power supplies, a crucial component of PCs, are seeing a diverse range of high-performance products released recently that support the ATX3.1 standard. The SuperFlower SF-850C12DB COMBAT DB 80PLUS Bronze ATX3.1 is a high-efficiency power supply that achieves over 90% efficiency based on 230V, and is a high-performance power supply certified with an 80PLUS Bronze rating.

It's a cost-effective power supply that supports the latest high-end hardware without issues through stable voltage, and provides high-quality capacitors, 6 types of protection features, DC to DC circuit, low-noise cooling fan, ribbon flat cable, and 12V-2X6 cable. In particular, it's attractive in that it provides a 450W 12V-2X6 cable as standard, allowing direct connection to RTX 40 / 50 series high-performance graphics cards for stable power supply, making it an excellent power supply for building a high-performance gaming PC.

As a modern power supply, it increases reliability by applying the new power standard next-generation ATX3.1 specification, and ensures stability. It also applies 6 types of protection technologies and circuits for system protection, allowing stable use even under overload conditions. Above all, it's a power supply that can support the next-generation power supply standards ATX 3.1 / PCIe 5.1, providing a 12V-2x6 (12+4 pin) connector to directly connect high-end graphics cards.

The efficiency of the 80PLUS Bronze rating is 82% at 20% load, 85% at 50% load, and 82% at 100% load, making it a high-efficiency power supply. The 12V-2x6 (12+4 pin) connector can supply up to 450W of power per connector, and can be installed in all mid-tower cases.

Looking at the performance of the SuperFlower SF-850C12DB power supply, the voltage of all channels checked with a tester that can easily check the voltage output status shows normal values within the allowable error range. The measured value of the PCIe line, the 12V channel, is also being output stably, and it can be confirmed that the SATA / IDE 4-pin voltage is also being output in a static range without significant changes in value.

A voltage measurement of ±5% means that it is being output normally.

Comparing the 12V voltage when the CPU is 100% loaded and when it is idle in OCCT, it can be seen that it is maintaining a stable 12.024V (iDle) / 12.096V (Full). +5V is 5.016V (iDle) / 4.992V (Full), and +3.3V is 3.312V (iDle) / 3.296V (Full), showing stable values with very low fluctuation.

Summarizing the results, it can be seen through testing that all voltages, including 12V, 3.3V, and 5V, are being output stably without large fluctuations.

The power consumption when running on a PC configured with an Intel 265K processor and RTX 3060 Ti graphics card is relatively low at 219.93W and 264.05W respectively, showing that it can be used comfortably with a high-efficiency 850W power supply.

The highest temperature measured in idle mode after installation in the PC case is 29.4 degrees, and it rises to 51.6 degrees when running at 100% full load, but this can be seen as keeping the temperature stable.

Measuring with a measuring instrument to know the exact power consumption, the standby power is 149W, 77.75W when idle, and 616W at full load, indicating that a certain amount of extra power is secured. There is ample room to replace and add power-hungry high-end graphics cards, memory, and liquid coolers, allowing the system to be operated and upgraded.

The 120mm low-noise fan of Rifle type with built-in intelligent fan speed control function has a built-in auto fan speed function that automatically adjusts the speed according to the internal temperature. When the power supply's operating rate is low, it operates in a low-noise mode of 39.4dB, and conversely, at full load when the operating rate increases, it is 44.9dB, so it can maintain even more quietness since it will be installed inside the case.

SuperFlower SF-850C12DB is a high-efficiency power supply with a rated output of 850W, and by applying a DC to DC single rail, it applies a single rail method that allows almost 100% of the power rating to be used as a 12V channel, allowing stable power supply to the latest high-end systems with high 12V usage.

Among the power supplies that have received 80PLUS Bronze certification to achieve a maximum efficiency of over 90% based on 230V, it can be used stably even in high-end systems with an efficiency of over 90%. Equipped with an active PFC circuit, it improves the power factor by 99%, making it a power supply that produces stable and high efficiency, making it operate stably even in gaming PCs.

SuperFlower SF-850C12DB power supply components

Rated output 850W power supply unit, power cable, 4 screws required for installation, user manual

The power supply unit with a clean black color and a sense of weight is 150mmx 140mm x 86mm, which exactly matches the standard of general power supplies, and can be installed in most cases including mid-tower cases without interference.

The power supply unit design is a square shape with a black matte coating, which is a typical form of the ATX 3.1 standard that we are familiar with. It is compatible with the latest Intel and AMD CPUs, and if you consider high-end graphics cards, this capacity is enough to operate the system.

A sticker with specifications is attached to the top, so you can briefly see the output specifications. The +12V single rail adoption occupies a large portion with a maximum capacity of 846W, and the available power of +12V is 99.25%. It implements free system output regardless of the channel, operates stably even with high-end graphics cards, and applies a DC to DC design for stable power supply.

Considering the trend that the usage of the 12V rail increases as the PC performance improves, the power design of the SuperFlower SF-850C12DB power supply can be seen to operate stably even in the latest Intel 15th generation CPU and AMD Ryzen 6th generation high-end systems.

The rear of the power supply has square air vents that minimize air resistance, allowing heat generated from internal components to be quickly dissipated. The 220V outlet and a switch to turn the power on and off are located on the side, and the input rated voltage (INPUT VOLTAGE) is designed for 220V only.

The PSU grill has a simple design without a special manufacturer logo in the center, and is equipped with a quiet and long-lasting Rifle 120mm low-noise cooling fan. By using a rifle bearing, it is quieter and more durable, extending its lifespan, reducing noise, and minimizing heat for powerful cooling performance.

The power supply unit has an intelligent thermal circuit inside, which is a fan that can smartly control the optimal balance. The 120mm cooling fan has a built-in auto fan speed function, so it automatically operates in the optimal state according to the situation when a certain temperature rises.

The SuperFlower SF-850C12DB power cable has a conventional integrated type connected to the main unit, which is a bit unusual considering that recently released power supplies are full modular or semi-modular. By applying a ribbon flat cable, it enables neat and convenient cable management, and helps with the case's air flow.

The 450W 12V2x6 cable that can support RTX 40/50 graphics cards is provided as one, and ensures stable and efficient power supply with a thick cable.

The length of the 24-pin main power cable is 600mm, which is a decent length, and the CPU auxiliary power cable is provided separately as 600mm 2ea, providing a generous length considering the location of the motherboard. In addition, SATA and EIDE cables have a minimum of 400mm depending on the location, and an additional 150mm of margin is added each time a connector is added, so even when connecting 3 to 4 or more devices with one bundle of cables, a sufficient interval can be maintained.

One FDD connector, which was often supported in past power supplies, is also included.

The length of the CPU auxiliary power cable is 600mm, and 2ea are provided, which is quite long among power supplies. A total of 2 connectors are provided, allowing ample power supply.

It provides a unidirectional 12V-2x6 cable as standard that can withstand a load of up to 2 times the rated power and up to 3 times the GPU auxiliary power. The length of the unidirectional 12V-2x6 (12+4 pin) cable is 700mm.

The PCI-E cable is a 6+2 pin type, providing a total of 2ea, and the length is made as 500 & 500 + 150mm, and all are provided as integrated.

The types and lengths of each connector of the SuperFlower SF-850C12DB are provided long enough to facilitate the additional installation of SSDs and HDDs. The SATA connector provides a quantity of 6ea, which is not largely insufficient, and the EIDE connector provides 3ea. The SATA + EIDE connectors are all integrated.

The length starts at 400mm, and increases by 150mm each time a connector is added.

The EIDE cable also has a similar structure to the SATA cable, but it is different in that it provides an FDD cable at the end.

The SuperFlower SF-850C12DB COMBAT DB 80PLUS Bronze ATX3.1 power supply can play an important role in completing a high-performance gaming PC by providing one 450W 12V2x6 cable that can be directly connected to high-performance graphics cards RTX 40 / 50 series. By adopting a DC to DC single rail, a high-quality main capacitor that can withstand up to 105 degrees, and an active PFC circuit for power saving, it can prevent unnecessary power waste and save energy.

In addition, it can safely protect the power supply and system at the same time through the highest level of 8 safety functions such as OVP, OCP, OPP, OTP, SCP, and UVP. The actual tested performance was also confirmed to be stable, and if you need a high-performance power supply that supports ATX3.1 and PCIe5.1 standards, you may want to consider this product.

As a high-quality power supply, it provides a 6-year free warranty period, and shows that it is a consumer-centered power supply for consumers, such as unlimited product replacement support in case of new product replacement or high-frequency noise problems during the free warranty period due to confidence in quality.

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