Be quiet! SYSTEM POWER 11 750W
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Be quiet! SYSTEM POWER 11 750W
The Be quiet! System Power 11 power supply unit with a 750W output delivers stable power to PC builds and meets the ATX 3.1 standard. Its architecture is prepared for high component power spikes, while its 80 PLUS Bronze certification confirms an energy conversion efficiency of up to 90%. For quiet operation in any situation, it uses a 120mm thermally controlled fan. Thanks to a strong 12V rail and DC-to-DC technology, it powers both the processor and graphics card with precise voltage regulation. The non-modular cabling design contributes to direct and reliable power delivery.
750W
Power
ATX
Format
80 PLUS Bronze
Certification
No
Modularity
Key technologies of the Be quiet! SYSTEM POWER 11 750W power supply
- Provides a total output of 750W
- 80 PLUS Bronze certification for up to 90% efficiency
- Cooling provided by a fan with automatic speed control
- One strong 12V rail provides stable power for demanding components
- DC-to-DC technology for more precise voltage regulation
- Includes a 12V-2x6 connector for PCIe 5.1 graphics cards
- A complete set of OVP, UVP, OCP, OPP, SCP, OTP and SIP protections safeguards your hardware
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 power supply can continuously deliver to the components in the computer. It is a good idea to use a web-based calculator to work out the optimal power output based on your chosen components.
ATX 3.1 standard
The power supply meets the specifications of the ATX 3.1 standard, which defines its ability to handle high, but very short, load spikes, also known as "power excursions". This ability is crucial for the stability of systems with powerful graphics cards, which can briefly draw up to twice their rated power. This 750W PSU effectively handles sudden power draws and prevents instability, thus avoiding unexpected system shutdowns under maximum load.
12V-2x6 connector
The cabling includes a 12V-2x6 connector that powers PCIe 5.1 standard graphics cards. This single cable can transfer up to 600W, which simplifies cable management and eliminates the need for adaptors. The direct connection improves the reliability and integrity of the electrical connection. A total continuous power output of 750W provides sufficient headroom for builds with powerful processors and high-end graphics cards. This power supply easily powers demanding gaming and workstations that require a stable supply of energy for rendering, gaming or complex calculations.
Quiet fan and stable 12V rail
A 120mm fan with a Rifle bearing takes care of cooling the internal components, contributing to a long service life and low operating noise. Thermal control automatically adjusts the speed according to the current load, so it remains almost silent under low load. Even at 50% load, the noise level is just 12.3dB(A), which supports the construction of quiet PC builds. The power supply uses a single strong 12V rail (single rail) capable of delivering up to 62.5A. This solution is key for powering more demanding components such as the processor and graphics card. A single rail simplifies power distribution and eliminates the risk of overloading individual rails.
Power supply efficiency and DC-to-DC technology
The 80 PLUS Bronze certification confirms high efficiency in converting electrical energy from the socket to power for the components. At 50% load, the efficiency reaches up to 90%. Lower heat losses reduce cooling demands and electricity consumption, resulting in lower running costs and quieter fan operation. To generate 3.3V and 5V from the main 12V rail, the power supply uses DC-to-DC technology. This approach to voltage regulation is particularly effective under uneven loading, known as cross-loading. This technology maintains a stable voltage on the 3.3V and 5V rails.
Classic PCI-E connectors
In addition to the modern 12V-2x6 connector, the power supply also offers three standard PCI-E 6+2 pin connectors. This feature expands compatibility and allows you to connect older graphics cards or other expansion cards that require additional power. The power supply has a non-modular design, which means that all cables are permanently attached to it. The power supply integrates a complete set of protections that prevent damage to the connected hardware in the event of abnormal operating conditions. The suite includes over-voltage, under-voltage, over-current, over-power, short-circuit, over-temperature and inrush current protection. These mechanisms act as a safeguard for valuable components and will immediately disconnect the power supply in the event of an anomaly. In stand-by mode, the power consumption drops below 0.15W.
Package contents
- Power supply
- Screws
- Cable ties
- Power cable
- 1× ATX 24-pin
- 2× CPU 8-pin (4+4)
- 3× PCIe 8-pin (6+2)
- 6× SATA 15-pin
- 1× Molex 4-pin
80 Plus certification on the European market
80 Plus certification was created to objectively assess the efficiency of computer power supplies. This gives users a simple and clear way to compare different models. On the European market (where a voltage of 230V is used), there are six levels of 80 Plus certification with set requirements for computer 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
Dimensions
| Code: | BNsp11a06 |
| Warranty: | 60 months |
| Links: | Producer's Website: |
| Manufacturer information |
Listan GmbH, Wilhelm-Bergner-Str. 11, 21509 Glinde, Germany [email protected] 
|