1. Introduzione
The FSP VITA GM 850W Power Supply is designed to provide stable and efficient power for your computer system. Featuring 80 PLUS Gold certification, a fully modular design, and advanced protection features, it is suitable for a wide range of applications, including gaming and professional workstations. This manual provides essential information for the proper installation, operation, and maintenance of your power supply unit.

Immagine 1.1: Dall'alto verso il basso view dell'alimentatore FSP VITA GM 850W, mostratoasing its compact design and fan grill.
2. Informazioni sulla sicurezza
Please read and understand all safety instructions before installing or operating the power supply. Failure to do so may result in personal injury or damage to your equipment.
- Non aprire l'alimentatore casing. Alto volumetages are present inside, even when the unit is unplugged. There are no user-serviceable parts inside. Opening the casing invaliderà la garanzia.
- Installare l'alimentatore in un'area ben ventilata, lontano da fonti di calore, luce solare diretta e umidità.
- Assicurarsi che l'alimentatore sia collegato a una presa elettrica con messa a terra.
- Utilizzare solo i cavi modulari forniti con questo alimentatore. L'utilizzo di cavi incompatibili può danneggiare l'alimentatore e i componenti collegati.
- Before installation or maintenance, always disconnect the AC power cord from the wall outlet.
- Avoid placing objects on top of the power supply or blocking its ventilation openings.
3. Contenuto della confezione
Verifica che tutti gli articoli siano presenti nel tuo pacco:
- FSP VITA GM 850W Power Supply Unit
- Modular Cable Set (including 12V-2x6 PCIe cable)
- Cavo di alimentazione CA
- Viti di montaggio
- Manuale dell'utente (questo documento)
4. Prodotto finitoview
The FSP VITA GM 850W features a fully modular design, allowing for clean cable management and improved airflow within your PC case. Key components include the main power unit, a 120mm hydraulic bearing fan for cooling, and various modular connectors for system components.

Immagine 4.1: Primo piano view of the modular connector panel on the FSP VITA GM 850W Power Supply, showing labeled ports for Motherboard, CPU, PCIe, Peripheral, and 12V-2x6.
4.1. Modular Connectors
The power supply features clearly labeled ports for connecting various components:
- Scheda madre: Main 24-pin ATX connector.
- PROCESSORE: 8-pin (4+4 pin) EPS connectors for CPU power.
- PCIe: 8-pin (6+2 pin) connectors for graphics cards.
- 12V-2x6: Dedicated 12V-2x6 connector for high-power PCIe 5.1 graphics cards.
- Periferica: Connectors for SATA and Molex devices.

Immagine 4.2: posteriore view of the FSP VITA GM 850W Power Supply, showing the AC power inlet, power switch, and ventilation grille.
5. Configurazione e installazione
Follow these steps to properly install your FSP VITA GM 850W Power Supply into your computer system.
5.1. Installazione fisica
- Assicurati che il computer sia spento e scollegato dalla presa a muro.
- Aprire il case del computer per accedere all'area di montaggio dell'alimentatore.
- Carefully place the FSP VITA GM 850W Power Supply into the designated bay, ensuring the fan faces the correct direction for optimal airflow (typically facing downwards if there's a bottom vent, or inwards if mounted at the top).
- Fissare l'alimentatore al case utilizzando le viti di montaggio fornite.
5.2. Collegamenti dei cavi
Connect the necessary modular cables to your power supply and system components. Only connect the cables you need to minimize clutter and improve airflow.

Image 5.1: Diagram illustrating the various modular cables included with the FSP VITA GM 850W Power Supply, including Motherboard, CPU, PCIe 6+2 Pin, PCIe 12V-2x6, SATA, and SATA/Molex cables, along with their approximate lengths in millimeters.
- Connect the 24-pin ATX cable from the power supply to the motherboard.
- Connect the 8-pin (4+4 pin) EPS cable(s) from the power supply to the CPU power connector(s) on the motherboard.
- For graphics cards, connect the appropriate 8-pin (6+2 pin) PCIe cables or the 12V-2x6 cable (for compatible PCIe 5.1 GPUs) from the power supply to the graphics card(s).
- Connect SATA power cables to your storage drives (HDDs, SSDs) and other SATA-powered devices.
- Connect Molex cables to any peripheral devices that require them.
- Assicurarsi che tutti i collegamenti dei cavi siano sicuri e correttamente inseriti.
- Chiudi il case del computer.
- Collegare il cavo di alimentazione CA all'alimentatore e poi a una presa a muro dotata di messa a terra.
6. Istruzioni per l'uso
Once installed, operating your FSP VITA GM 850W Power Supply is straightforward.
6.1. Accensione/Spegnimento
- Assicurarsi che l'interruttore di alimentazione sul retro dell'alimentatore sia in posizione "ON" (I).
- Premere il pulsante di accensione sul case del computer per avviare il sistema.
- To power off, shut down your operating system normally. For complete power disconnection, switch the power supply to the 'OFF' (O) position and unplug the AC cord.
6.2. Efficiency and Fan Operation
The VITA GM 850W is 80 PLUS Gold certified, meaning it operates with over 90% efficiency at typical loads. This reduces wasted energy, heat generation, and noise. The integrated 120mm HYB fan is designed for quiet and efficient cooling, adjusting its speed based on the power supply's temperature and load to maintain optimal performance and acoustics.

Image 6.1: Graph illustrating the fan speed (RPM) and acoustic noise (dBA) of the 120mm HYB fan in the FSP VITA GM 850W Power Supply across different load percentages, demonstrating quiet operation at lower loads.
7. Manutenzione
Una corretta manutenzione garantisce la longevità e le prestazioni ottimali del tuo alimentatore.
- Pulizia: Periodically clean the exterior of the power supply and its fan grille to prevent dust buildup. Use a soft, dry cloth or compressed air. Ensure the power supply is unplugged before cleaning.
- Flusso d'aria: Assicurarsi che le prese d'aria di aspirazione e di scarico dell'alimentatore non siano ostruite. Un buon flusso d'aria è fondamentale per un raffreddamento efficiente.
- Gestione dei cavi: Maintain tidy cable management within your PC case to promote better airflow and prevent cables from interfering with the power supply fan.
8. Risoluzione Dei Problemi
If you encounter issues with your FSP VITA GM 850W Power Supply, refer to the following common problems and solutions.
8.1. Problemi comuni
- Nessun potere:
- Verificare che il cavo di alimentazione CA sia collegato saldamente sia all'alimentatore sia alla presa a muro.
- Ensure the power switch on the PSU is in the 'ON' (I) position.
- Verificare che la presa a muro funzioni collegandovi un altro dispositivo.
- Check all modular cable connections to the motherboard and components.
- Instabilità del sistema/Arresti casuali:
- This could indicate an overloaded system or a component issue. Ensure your system's power requirements do not exceed 850W.
- Check for proper ventilation and ensure the power supply fan is spinning. Overheating can trigger protection mechanisms.
- Verificare che tutti i collegamenti dei cavi siano saldi.
- Forte rumore della ventola:
- Ensure the power supply's fan intake/exhaust is not obstructed.
- Clean any dust buildup on the fan blades or grille.
- High system load will naturally increase fan speed. If noise is excessive at low loads, contact support.
8.2. Funzionalità di protezione
The FSP VITA GM 850W Power Supply includes several protection features to safeguard your system:
- OVP (sovravoltageProtezione): Shuts down the PSU if output voltages exceed a safe level.
- OCP (protezione da sovracorrente): Shuts down the PSU if current on a single rail exceeds a safe level.
- OPP (Overpower Protection): Shuts down the PSU if the total power draw exceeds its maximum wattage.
- UVP (SottovoltageProtezione): Shuts down the PSU if output voltages drop below a safe level.
- SCP (Protezione da cortocircuito): Shuts down the PSU in case of a short circuit on any output rail.
- OTP (Overtemperature Protection): Spegne l'alimentatore se la temperatura interna diventa troppo elevata.

Image 8.1: Diagram illustrating the comprehensive protection features of the FSP VITA GM 850W Power Supply, including OVP, OCP, OPP, NLO, OTP, SCP, UVP, and SIP.
If any of these protections are triggered, the power supply will shut down. Disconnect the AC power, check your system for faults, and then reconnect power to attempt a restart.
9. Specifiche
Detailed technical specifications for the FSP VITA GM 850W Power Supply:
| Caratteristica | Specificazione |
|---|---|
| Nome del modello | VITA-850GM |
| Marca | FSP |
| Uscita Wattage | 850 Watt |
| Certificazione 80 PLUS | Oro |
| Fattore di forma | ATX |
| Dimensioni (L x P x A) | 140 x 150 x 86 mm (5.5 x 5.9 x 3.4 pollici) |
| Peso dell'articolo | 3.1 chilogrammi (6.82 libbre) |
| Metodo di raffreddamento | Air (120mm HYB Fan) |
| Condensatori | 105°C Japanese Bulk Capacitors |
| Tipo di connettore | ATX, PCI Express (Full Modular) |
| Dispositivi compatibili | Computer, Gaming Console |
| Caratteristiche di protezione | OVP, OCP, SCP, OPP, UVP, OTP, NLO, SIP |
10. Garanzia
The FSP VITA GM 850W Power Supply comes with a Garanzia di 10 anno from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, accident, abuse, misuse, natural disaster, insufficient or excessive electrical supply, abnormal mechanical or environmental conditions, or any unauthorized disassembly, repair, or modification.
11. Supporto
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please visit the official FSP website or contact FSP customer support. You can often find FAQs, driver downloads, and contact information on the manufacturer's support pages.
Per maggiori informazioni, visita: FSP Official Store on Amazon