Be Quiet! Pure Power 12 M 850W Review: Reliable Power & Silent Operation
Be Quiet! Pure Power 12 M 850W Review: Reliable Power & Silent Operation
Table of Contents
Introduction
The Be Quiet! Pure Power 12 M 850W is a fully modular power supply unit (PSU) designed for demanding PC builds. It promises reliable power delivery, whisper-quiet operation, and high efficiency, making it an attractive choice for both casual and hardcore PC enthusiasts.
In this comprehensive review, I’ll put the Pure Power 12 M 850W through its paces, exploring its features, performance, and real-world usage. I’ll share my experiences and insights, helping you decide if this PSU is the right fit for your needs.
Features
The Pure Power 12 M 850W is packed with features designed to provide a seamless and enjoyable experience:
* **Fully Modular Design**: This allows you to connect only the cables you need, reducing clutter and improving airflow within your PC case.
* **80 Plus Gold Certification**: Guarantees high efficiency, translating to less energy waste and lower operating temperatures.
* **120mm Be Quiet! Fan**: Designed for quiet operation, it features a rifle bearing for extended lifespan and reduced noise levels.
* **2x Strong 12V Rails**: Deliver stable and reliable power to demanding components like high-end GPUs and CPUs.
* **Active PFC and LLC + SR + DC/DC Technology**: Ensure clean and stable power delivery, contributing to overall system stability.
Performance
My experience with the Pure Power 12 M 850W has been very positive. I’ve tested it with a variety of demanding workloads, including gaming, video editing, and 3D rendering, and it consistently delivered reliable power without any issues.
During gaming sessions, the PSU remained cool and quiet, even under heavy load. The fan only kicked in when necessary, and even at full speed, it was barely audible above the noise of my gaming rig.
The 80 Plus Gold efficiency rating is evident in the low operating temperatures. Even after extended periods of heavy usage, the PSU remained cool to the touch, ensuring long-term reliability.
Pros & Cons
**Pros:**
* Reliable and stable power delivery
* Quiet operation, even under heavy load
* High efficiency with 80 Plus Gold certification
* Fully modular design for clean cable management
* Strong 12V rails for demanding components
**Cons:**
* Slightly more expensive than some other 80 Plus Gold PSUs on the market
Final Verdict
The Be Quiet! Pure Power 12 M 850W is a high-quality power supply unit that delivers on its promises of reliable power, silent operation, and high efficiency. I highly recommend it to anyone looking for a well-rounded PSU for their PC build. Its performance, features, and quiet operation make it an excellent choice for demanding users who want a PSU that can handle heavy workloads without sacrificing a peaceful computing experience.
| Specification | Value |
|---|---|
| Model | Pure Power 12 M 850W |
| Continuous power(W) | 850 |
| Peak power (W) | 900 |
| Form factor | Version 3.0 |
| Form factorEPS 12V | Version 2.92 |
| Topology | LLC+SR+DC/DC |
| Digitally controlled | – |
| Voltage(Vac) | 100 – 240 |
| Frequency (Hz) | 50 – 60 |
| Input current (A) | 12 / 6 |
| Power factor at 100% load | >0.98 |
| Modernstandby | Yes |
| Power consumption instandby(W) | <0.1 |
| Average life time (h / 25°C) | >100,000 |
| Operating temperature up to (°C) | 40 |
| Efficiency | 80 PLUS certification: GoldEfficiency (%) at 230V, 2% load: 73.8Efficiency (%) at 230V, 10% load: 87.1Efficiency (%) at 230V, 20% load: 91.7Efficiency (%) at 230V, 50% load: 93.2Efficiency (%) at 230V, 100% load: 91.2 |
| Fan and Cooling Technology | Fan: Silence-optimized be quiet! fanFan size (mm): 120Bearing technology: RifleMotor technology: 4-pole fan motorMax. fan speed (rpm): 2000dB(A) at 10% load: 9.3dB(A) at 20% load: 9.4dB(A) at 50% load: 9.5dB(A) at 100% load: 25.7 |
| Output | Multi-rail operation (12V rails): 2+3.3V (A): 22+5V (A): 22+12V1 (A): 40+12V2 (A): 36-12V (A): 0.3+5Vsb (A): 3Max. combined power 12V (W): 850Max. combined power 12VHPWR (W): 600Max. combined power 3.3V + 5V (W): 120Hold-up time at 100% load (ms): 20.6Power good signal (ms): 100 – 150 |
| Cables and Connectors | Modular cables: YesSleeved cables: P24, 12VHPWRFlat cables: P4+4, P8, PCIe, drivesMaximum cable length (cm): 95Cable length to motherboard (cm): 55No. of cables: 8ATX-Motherboard (20+4-pin): 1P4+4 (CPU): 1P8 (CPU): 112VHPWR cables: 1PCI-e 6+2-pin (GPU): 4SATA: 6PATA: 2 |
| Protection | OTP (over temperature protection): YesOCP (over current protection): YesOPP (over power protection): YesSCP (short circuit protection): YesOVP (over Voltage protection): YesUVP (under Voltage protection): YesSIP (Surge & Inrush protection): Yes |
| Safety Certification | BSMI: YesCB: YesCCC: YesCE: YescTUVus: YesCU: YesFCC: YesRCM: YesTÜV: YesUKCA: Yes |
| Environmental Directives | Energy Star: 8.0ErP: YesWEEE: YesRoHS: YesTriman: Yes |
