1. Introducció
This manual provides essential information for the installation, operation, and maintenance of your Segotep GM850 850W Power Supply. Please read this manual thoroughly before installation and retain it for future reference. The Segotep GM850 is a high-performance, fully modular power supply designed to meet the demands of modern computing systems, including those with NVIDIA RTX 20/30/40/50 Series and AMD Graphics Cards.

Image 1.1: Segotep GM850 850W Power Supply and Retail Box
2. Informació de seguretat
Observe the following safety precautions to prevent injury or damage to your equipment:
- Desconnecteu sempre el cable d'alimentació de la presa de corrent abans d'instal·lar, treure o netejar la font d'alimentació.
- No obriu la font d'alimentació. Alt voltatgetagHi ha peces a l'interior i no hi ha peces que l'usuari pugui reparar. L'obertura de la unitat anul·larà la garantia.
- Assegureu-vos que la font d'alimentació estigui instal·lada en una zona ben ventilada, lliure de calor, humitat o pols excessives.
- Feu servir només els cables modulars que s'inclouen amb aquesta font d'alimentació. L'ús de cables incompatibles pot causar danys a la font d'alimentació o als components connectats.
- Connecteu la font d'alimentació a una presa de corrent amb connexió a terra.
- Avoid placing objects into the fan grille or ventilation openings of the power supply.

Image 2.1: Safety Protection Features (OVP, OCP, OPP, SPD, OTP, UVP, SCP)
3. Contingut del paquet
Verify that all items are present in your Segotep GM850 850W Power Supply package:
- Segotep GM850 850W Power Supply Unit
- Cable d'alimentació CA
- Modular Cable Set (see Image 3.1 for details)
- Cargols de muntatge
- 24-Pin Bridge Tool (for testing, if included)
- Manual d'usuari (aquest document)

Image 3.1: Included Modular Cables and 24-Pin Bridge Tool
4. Característiques del producte
- Preparat per a ATX 3.1 i PCIe 5.1: This power supply is compliant with the latest ATX 3.1 and PCIe 5.1 standards, ensuring compatibility with next-generation hardware. It is designed to handle power excursions up to 200% of total power and 300% of GPU power, providing stable power delivery for high-performance graphics cards.

Image 4.1: ATX 3.1 Compliance and Power Excursion Handling
- Certificació 80+ Gold: The 80 PLUS Gold certification guarantees high power efficiency, reducing energy waste and operating costs. This results in less heat generation and a quieter system.

Image 4.2: 80 Plus Gold Efficiency Certification
- Disseny totalment modular: The fully modular cable system allows you to connect only the cables your system requires, improving airflow within your PC case and simplifying cable management. The flat black cables enhance the aesthetic appeal of your build.
- Native 12VHPWR Cable: Equipped with a native 12VHPWR cable, this PSU can deliver up to 600W of power directly to PCIe 5.1 graphics cards, eliminating the need for adapters and ensuring stable power delivery.

Image 4.3: Native 12VHPWR Cable for PCIe 5.1 Graphics Cards
- Stable +12V Output: Featuring a DC-DC structure, Full Bridge LLC resonance assist, and 12V synchronous rectification, the GM850 provides a highly stable and safe +12V output, crucial for sensitive components like the CPU and GPU.
- Proteccions de seguretat integrals: The power supply incorporates multiple protection circuits to safeguard your components: OVP (Over Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), SPD (Surge Protection Device), OTP (Over Temperature Protection), UVP (Under Voltage Protection), and SCP (Short Circuit Protection).
- 120mm FDB Fan: A 120mm Fluid Dynamic Bearing (FDB) fan provides efficient cooling with minimal noise, contributing to a quieter computing experience.

Image 4.4: Graphics Card Compatibility and Connector Types
5. Guia d'instal·lació
Follow these steps to install your Segotep GM850 850W Power Supply:
- Preparació: Assegureu-vos que l'ordinador estigui apagat i desendollat de la presa de corrent. Obriu la carcassa de l'ordinador.
- Traieu la font d'alimentació antiga (si escau): Desconnecta tots els cables de la font d'alimentació antiga. Desenrosca i treu la font d'alimentació antiga de la carcassa.
- Muntar la nova font d'alimentació: Carefully slide the Segotep GM850 into the power supply bay of your computer case. Secure it with the provided mounting screws.
- Connecteu els cables essencials:
- 20+4 Pin ATX Motherboard Cable: Connect the main motherboard power cable to the corresponding port on your motherboard.
- 4+4 Pin CPU Cable(s): Connect the CPU power cable(s) to the CPU power port(s) on your motherboard.
- Connect Graphics Card Cables:
- For PCIe 5.1 compatible graphics cards, use the native 12VHPWR (16-pin) cable.
- For older graphics cards, use the 6+2 pin PCIe cables as required by your GPU.
- Connecteu els cables perifèrics: Connect SATA power cables to your SSDs, HDDs, and optical drives. Connect IDE/Molex cables for any other peripherals that require them.
- Gestió de cables: Utilize the fully modular design and flat cables to route and manage cables neatly within your case for optimal airflow and aesthetics.
- Comprovació final: Comproveu totes les connexions per assegurar-vos que estiguin ben fixades. Tanqueu la carcassa de l'ordinador.
- Encès: Plug the AC power cord into the power supply and then into a grounded wall outlet. Flip the power switch on the PSU to the 'ON' position. Power on your computer.

Image 5.1: Segotep GM850 Power Supply Installed in a PC Case
6. Funcionament
Once installed, the Segotep GM850 850W Power Supply operates automatically, providing stable power to your system. The 120mm FDB fan adjusts its speed based on the power supply's temperature and load, ensuring efficient cooling while maintaining low noise levels. No user intervention is typically required during normal operation.
7. Manteniment
To ensure optimal performance and longevity of your power supply, consider the following maintenance tips:
- Eliminació de pols: Periodically clean the exterior of the power supply and its fan grille to prevent dust buildup, which can impede airflow and cooling. Use compressed air to gently clear dust from the fan and vents. Ensure the system is powered off and unplugged before cleaning.
- Inspecció del cable: Occasionally check all modular cable connections to ensure they are seated firmly.
- Medi ambient: Maintain a clean, cool, and dry environment for your computer to prevent excessive strain on the power supply.
8. Solució De Problemes
Si teniu problemes amb la font d'alimentació, consulteu els problemes i solucions més comuns següents:
| Problema | Causa possible | Solució |
|---|---|---|
| L'ordinador no s'encén. | Power cord not connected, PSU switch off, faulty component, insufficient power. | Ensure power cord is secure. Check PSU switch is ON. Verify all modular cables are correctly connected. Test with minimal components. |
| System crashes or reboots randomly. | Overload, overheating, unstable power delivery. | Assegureu-vos que tot el sistema estigui aiguattage does not exceed 850W. Check for proper ventilation. Verify all cables are securely connected. |
| Fan is excessively loud. | Dust buildup, high load, fan malfunction. | Clean dust from the fan and vents. Ensure adequate case airflow. If noise persists, contact support. |
| Olor de cremat o fum. | Serious component failure. | Immediately disconnect power from the wall outlet. Do not attempt to power on the system. Contact Segotep support. |
If these steps do not resolve your issue, please contact Segotep customer support.
9. Especificacions
| Característica | Detall |
|---|---|
| Nom del model | GM850 |
| Potència de sortidatage | 850 watts |
| Certificació d'eficiència | 80 PLUS Or |
| Factor de forma | ATX 3.0 (Compatible with ATX 3.1) |
| Tipus de connector | ATX 3.1, PCI Express 5.1 (Native 12VHPWR) |
| Mètode de refrigeració | Aire (ventilador FDB de 120 mm) |
| Dimensions del producte (L x A x A) | 5.91 x 5.51 x 3.35 polzades |
| Pes de l'article | 5.29 lliures |
| Dispositius compatibles | Gaming Console (PC) |
| Proteccions | OVP, OCP, OPP, SPD, OTP, UVP, SCP |
10. Garantia i Suport
The Segotep GM850 850W Power Supply comes with a 5 any de garantia from the date of purchase, covering defects in materials and workmanship under normal use. This warranty does not cover damage caused by improper installation, accidents, abuse, misuse, natural disaster, or unauthorized modification.
For technical support, warranty claims, or further assistance, please contact Segotep customer service through their official website or the retailer where the product was purchased. Please have your proof of purchase and product model information ready when contacting support.
Segotep Inc.
Weblloc: www.segotep.com
Correu electrònic: support@segotep.us



