1. Bubuka
The be quiet! Pure Power 12 M 850W is a modular power supply designed for high-performance PC systems. It is ATX 3.1 compliant and PCIe 5.0 compatible, offering high efficiency and stable power delivery. This manual provides essential information for the proper installation, operation, and maintenance of your power supply unit (PSU).
2. Parentah Kasalametan
Please read the following safety instructions carefully before installing or operating the power supply. Failure to comply may result in electric shock, fire, or damage to the product and connected components.
- Always disconnect the power supply from the mains electricity before installation, removal, or any maintenance work.
- Ulah muka catu daya casing. Tinggi voltagÉta aya di jero, sareng muka éta bakal ngabatalkeun garansi.
- Ensure proper grounding of your PC system.
- Use only the modular cables provided with your be quiet! Pure Power 12 M 850W power supply. Using incompatible cables may cause damage.
- Avoid exposing the power supply to moisture, dust, or extreme temperatures.
- Pastikeun ventilasi anu cekap di sakitar catu daya pikeun nyegah panas teuing.
- If you experience any issues, refer to the troubleshooting section or contact customer support.
3. Setup jeung Instalasi
This section guides you through the process of installing your new power supply into your PC system.
3.1 Unpacking the Power Supply
Carefully remove the power supply and its accessories from the packaging. Verify that all components listed in the package contents are present.

Figure 1: The be quiet! Pure Power 12 M 850W Modular Power Supply.

Figure 2: Included modular cables for the Pure Power 12 M 850W.
3.2 Pasang Power Supply
- Ensure your PC case is compatible with ATX form factor power supplies.
- Position the power supply in the designated PSU bay of your PC case.
- Secure the power supply to the case using the provided screws. Ensure the fan is facing the correct direction for optimal airflow (typically facing downwards if there's a bottom vent, or upwards if not).
3.3 Nyambungkeun Kabel Modular
The Pure Power 12 M 850W features fully modular cabling, allowing you to connect only the necessary cables for a cleaner build and improved airflow.

Figure 3: Modular connector panel of the Pure Power 12 M 850W, showing various ports for motherboard, CPU, PCIe, and drive connections.
- 24-pin ATX Motherboard Cable: Connect the large 24-pin cable to the corresponding port on your motherboard and the PSU.
- CPU Power Cables (P8): Connect the 4+4 pin or 8-pin CPU power cables to your motherboard's CPU power connectors and the PSU.
- Kabel Daya PCIe:
- For modern GPUs, use the dedicated 12VHPWR (12V-2x6) 600W cable.
- For other GPUs or additional power, use the 6+2 pin PCIe connectors.
- SATA and Molex Cables (DRIVES): Connect these cables to your storage drives (HDDs, SSDs) and other peripherals as needed.
Ensure all cables are securely seated to prevent power delivery issues.
4. Parentah Operasi
The be quiet! Pure Power 12 M 850W is designed for efficient and quiet operation.
4.1 Powering Dina Sistim anjeun
- After connecting all necessary components, ensure the power switch on the back of the PSU is in the "OFF" (0) position.
- Sambungkeun kabel daya AC ka PSU teras ka stop kontak témbok.
- Flip the power switch on the PSU to the "ON" (I) position.
- Press the power button on your PC case to start your system.
4.2 Fitur konci na Performance
- 80 Plus Gold Efficiency: The PSU operates with up to 93.0% efficiency, minimizing energy waste and heat generation.
- ATX 3.1 & PCIe 5.1 Siap: Designed to support the latest GPUs and future hardware with dedicated 12V-2x6 600W and 6+2 pin connectors.
- Pangiriman Daya Stabil: Provides 850W continuous power with dual 12V rails, capable of handling transient power spikes up to 2000W.
- Operasi Ultra-Tepi: Equipped with a silent 120mm be quiet! fan with temperature-controlled speed adjustments and airflow-optimized blades, ensuring minimal noise even under heavy loads.

Figure 4: The 80 Plus Gold certification ensures high energy efficiency.

Figure 5: The silent 120mm fan ensures quiet operation.
Video 1: Hiji leuwihview of be quiet! Power Zone PC Power Supplies, highlighting features relevant to the Pure Power 12 M series.
5. Pangropéa
Pangropéa rutin ngabantosan mastikeun umur panjang sareng kinerja optimal catu daya anjeun.
- beberesih: Periodically clean the exterior of the power supply and the fan grille to prevent dust buildup, which can impede airflow and cooling. Use compressed air or a soft brush. Always disconnect power before cleaning.
- Manajemén Kabel: Pastikeun kabel dialirkeun rapih sareng henteu ngahalangan aliran hawa dina wadah PC.
- Kaayaan Lingkungan: Operate the power supply in a well-ventilated area with stable room temperature. Avoid extreme humidity.
6. Cara ngungkulan
If you encounter issues with your power supply, refer to the following common problems and solutions.
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| PC teu hurung. | Power cable not connected, PSU switch off, faulty components. | Check AC power cord connection. Ensure PSU switch is "ON". Verify all modular cables are securely connected. Test with minimal components (CPU, RAM, GPU). |
| Sistem hurung tapi langsung pareum. | Overload, short circuit, overheating, faulty component. | Pastikeun total wattage does not exceed 850W. Check for loose connections or short circuits. Ensure adequate ventilation. |
| Sora anu teu biasa tina PSU. | Fan obstruction, faulty fan, coil whine. | Check for any obstructions in the fan. Ensure PSU is securely mounted. If noise persists and is excessive, contact support. |
| Peripherals (e.g., hard drives) not detected. | Loose or incorrect SATA/Molex power connection. | Verify SATA/Molex cables are correctly connected to both the PSU and the peripheral. |
If the problem persists after attempting these solutions, please contact be quiet! customer support.
7. Spésifikasi
| Fitur | Rincian |
|---|---|
| merek | jempé! |
| Ngaran modél | Pure Power 12 M 850W (BN505) |
| Kaluaran Wattage | 850 Watt |
| Sertifikasi efisiensi | 80 Plus Gold (up to 93.0%) |
| Vérsi ATX | ATX 3.1 |
| PCIe Compatibility | PCIe 5.1 (12V-2x6 600W connector included) |
| Desain suplai kakuatan | Modular pinuh |
| Métode Cooling | Air (Silent 120mm be quiet! Fan) |
| Ukuran produk (L x W x H) | 5.91 x 3.39 x 6.3 inci |
| Item Beurat | 6.96 pon |
| Alat nu cocog | PC |
8. Garansi jeung Rojongan
The be quiet! Pure Power 12 M 850W Modular Power Supply comes with a 10-taun jaminan produsén urang, mastikeun reliabilitas jangka panjang sareng katengtreman pikiran.
For technical support, warranty claims, or further assistance, please visit the official be quiet! websitus atanapi ngahubungan departemén layanan palanggan maranéhna.
Official be quiet! Websitus: www.bequiet.com





