1. Introducción
This manual provides detailed instructions for the installation, operation, and maintenance of your ASRock Steel Legend SL-850G 850W Full Modular Power Supply. Please read this manual thoroughly before installation to ensure proper setup and safe operation. This power supply unit (PSU) is designed to deliver stable and efficient power to your personal computer system.
2. Características principales
- Certificación 80 PLUS Gold: Ensures high power efficiency, reducing heat generation and operating costs.
- Cybenetics Platinum and LAMBDA A+ Certified: Guarantees superior efficiency and quiet operation.
- Compatible con ATX3.1 y PCIe5.1: Fully compliant with the latest ATX 3.1 and PCIe 5.1 standards, including native 12V-2x6 cable support for modern graphics cards.
- Fully Modular Cable Design: Allows for cleaner cable management and improved airflow by connecting only the necessary cables.
- 100% Highly Reliable Japanese Capacitors: Utilizes high-quality Japanese capacitors rated for 105°C, ensuring long-term stability and durability.
- iCool Intelligent Fan Control Mode: Optimizes fan speed based on load and temperature, providing quiet operation at low to medium loads.
- Built-in 5V BOOST Function: Provides stable 5V power delivery.
- 135mm Striped Axial FDB Fan: Features a Fluid Dynamic Bearing (FDB) fan for quiet operation and extended lifespan.
3. Contenido del paquete
Verifique que todos los elementos estén presentes en el paquete antes de continuar con la instalación.

Image: Contents of the ASRock Steel Legend SL-850G Power Supply package.
- ASRock Steel Legend SL-850G Power Supply Unit
- Cable de alimentación de CA
- Modular Cable Set (MB 24-Pin, CPU 4+4 Pin, PCIe 12V-2x6, PCIe 6+2 Pin, SATA, PATA)
- Guía de instalación/Manual de usuario
- ATX 24-Pin PSU Tester
- Bolsa de cable
- Bridas de velcro para cables
- Bridas para cables
- Tornillos de montaje

Image: Detailed diagram of included modular cables and their lengths.
4. Configuración e instalación
Proper installation is crucial for the performance and longevity of your power supply. Always ensure your system is powered off and unplugged from the wall outlet before installation.
4.1 Precauciones de seguridad
- Disconnect the AC power cord from the wall outlet before handling the PSU or any internal components.
- Asegúrese de que haya una conexión a tierra adecuada para evitar descargas electrostáticas (ESD).
- No abra la fuente de alimentación casing. Alto volumentagEstán presentes en el interior, incluso cuando está desconectado.
4.2 Instalación física
- Mount the PSU into the designated power supply bay in your computer case. Ensure the fan is facing the correct direction for optimal airflow (usually facing down if there's a bottom vent, or up if it's a top-mounted PSU).
- Fije la fuente de alimentación a la carcasa utilizando los tornillos de montaje proporcionados.
4.3 Conexiones de cable
Connect only the necessary modular cables to your components. This improves cable management and airflow within your case.

Imagen: Lateral view of the power supply with modular cable connections clearly labeled.
- Alimentación de la placa base: Conecte el cable ATX de 24 pines a su placa base.
- Potencia de la CPU: Connect the 4+4-pin EPS/ATX12V cable(s) to your motherboard's CPU power connector(s).
- PCIe Power (Graphics Cards): For modern graphics cards requiring a 12V-2x6 connector, use the dedicated cable. Ensure the connector is fully seated. For other graphics cards, use the 6+2-pin PCIe cables.

Image: Proper connection of the PCIe 12V-2x6 cable, highlighting the importance of full insertion.
- Alimentación SATA: Connect SATA power cables to your storage drives (SSDs, HDDs) and other SATA-powered devices.
- PATA Power (Molex): Connect PATA power cables to older peripherals or case fans if needed.
After connecting all necessary internal cables, connect the AC power cord to the PSU and then to a wall outlet.
5. Instrucciones de funcionamiento
5.1 Encendido / Apagado
- Asegúrese de que todos los cables estén conectados de forma segura.
- Flip the main power switch on the back of the PSU to the 'I' (On) position.
- Power on your computer system via the case power button.
- To power off, shut down your operating system normally, then flip the main power switch on the PSU to the 'O' (Off) position.

Image: Rear panel of the power supply, indicating the main power switch and iCool fan control switch.
5.2 iCool Intelligent Fan Control
The ASRock Steel Legend SL-850G features an iCool switch on the rear panel. This switch controls the fan's operation mode:
- iCool ON: The fan will remain off at low to medium loads for silent operation. It will activate automatically when the load or temperature increases.
- iCool OFF: The fan will operate continuously, regardless of the load or temperature. This provides maximum cooling but may result in higher noise levels.
Choose the mode that best suits your preference for noise and cooling performance.

Image: iCool Mode Curve Diagram, showing fan noise levels versus load percentage.
6. Mantenimiento
El mantenimiento regular ayuda a garantizar la longevidad y el rendimiento óptimo de su fuente de alimentación.
- Limpieza: Periodically clean the exterior of the PSU and its fan grille to prevent dust buildup. Use compressed air to gently clear dust from the fan blades and heatsinks. Ensure the system is powered off and unplugged before cleaning.
- Sistema de organización de cables: Asegúrese de que los cables estén colocados de forma ordenada y no obstruyan el flujo de aire dentro del gabinete.
- Ambiente: Operate the PSU in a well-ventilated area, away from excessive heat, humidity, and direct sunlight.
7. Solución de problemas
If you encounter issues with your power supply, try the following troubleshooting steps:
- Sin energía:
- Compruebe si el cable de alimentación de CA está conectado de forma segura tanto a la fuente de alimentación como a la toma de pared.
- Ensure the main power switch on the PSU is in the 'I' (On) position.
- Verifique que el tomacorriente de pared funcione enchufando otro dispositivo.
- Use the included 24-pin PSU tester to check if the PSU powers on independently.
- Inestabilidad del sistema/apagados aleatorios:
- Ensure all modular cables, especially the 12V-2x6 PCIe cable, are fully seated and properly connected.
- Check for any loose connections to the motherboard, CPU, or graphics card.
- Verifique que los requisitos de energía de su sistema no excedan la capacidad de 850 W de la fuente de alimentación.
- Fan Not Spinning (iCool ON):
- If iCool mode is ON, the fan may not spin at low loads. This is normal operation.
- If the fan does not spin even under load, try switching iCool mode OFF to force continuous fan operation. If it still doesn't spin, contact support.
- Ruidos inusuales:
- Asegúrese de que no haya cables que obstruyan el ventilador.
- If the noise persists and is not related to fan operation, contact support.
Si estos pasos no resuelven el problema, consulte la sección Garantía y soporte para obtener más ayuda.
8. Especificaciones
| Característica | Especificación |
|---|---|
| Modelo | SL-850G |
| Salida Wattage | 850 vatios |
| Certificación 80 PLUS | Oro |
| Cybenetics Certification | Platinum, LAMBDA A+ |
| Factor de forma | ATX |
| Diseño de fuente de alimentación | Modular completo |
| Método de enfriamiento | Aire (ventilador FDB de 135 mm) |
| Dispositivos compatibles | Ordenador personal |
| Tipo de conector | ATX |
| Dimensiones del producto (L x An x Al) | 5.91 x 5.91 x 3.39 pulgadas |
| Peso del artículo | 3 libras |
9. Garantía y soporte
The ASRock Steel Legend SL-850G Power Supply comes with a remarkable Garantía de 10 años, covering defects in materials and workmanship under normal use. For warranty claims or technical support, please contact ASRock customer service through their official websitio o la información de contacto proporcionada en el embalaje de su producto.
For the latest drivers, FAQs, and support resources, visit the official ASRock websitio: www.asrock.com
10. Vídeos de productos
ASRock Power Supplies Steel Legend Series Features
Vídeo: Un overview of the key features of the ASRock Steel Legend series power supplies, including design, efficiency, and cooling.
ASRock Power Supplies
Video: A general introduction to ASRock's power supply lineup, showcasing various models and their design elements.





