Manuale utente dell'alimentatore FSP Dagger Pro 850W SFX (SDA2-850-Gen5)

1. Introduzione

This manual provides detailed instructions for the installation, operation, and maintenance of your FSP Dagger Pro 850W SFX Power Supply. The FSP Dagger Pro series is designed for small form factor (SFX) systems, offering high efficiency and reliable power delivery for demanding components.

Key features of the FSP Dagger Pro 850W SFX Power Supply include:

ATX 3.1 / PCIe 5.1 Compliance: Equipped with a native 12VHPWR connector and cable, supporting the latest generation hardware power demands.
Design completamente modulare: Allows for connecting only necessary cables, improving airflow and reducing cable clutter within compact PC builds.
Compact SFX Form Factor: Compatible with most Mini-ITX and Micro ATX cases, ideal for small form factor PCs.
Efficienza certificata 80 PLUS Gold: Achieves over 90% efficiency at typical loads, contributing to lower power consumption, reduced heat output, and quieter operation.
Progettazione di una singola rotaia +12V: Provides full power to VGA cards individually, preventing overloading conditions.

FSP Dagger Pro 850W SFX Power Supply, top-down view showing the fan grill and modular cable ports.

Image 1.1: FSP Dagger Pro 850W SFX Power Supply, showcasing its compact design and modular cable interface.

2. Informazioni sulla sicurezza

WARNING: Improper installation or use can result in serious injury or damage to equipment. Please read and follow all instructions carefully.

Scollegare sempre il cavo di alimentazione dalla presa a muro prima di installare, rimuovere o pulire l'alimentatore.
Non aprire l'alimentatore. Alto volumetagAll'interno sono presenti componenti difettosi e non ci sono parti riparabili dall'utente. L'apertura dell'unità invaliderà la garanzia.
Ensure the power supply is installed in a well-ventilated area. Do not block any ventilation openings.
Use only the modular cables provided with this power supply. Using third-party cables may cause damage to the PSU or connected components.
Questo prodotto è progettato per l'uso in sistemi informatici. Non utilizzarlo per altri scopi.
Tenere l'alimentatore lontano da acqua, umidità e temperature estreme.

3. Contenuto della confezione

Verifica che il pacco contenga i seguenti articoli:

FSP Dagger Pro 850W SFX Power Supply Unit
Modular Cable Set (including 12VHPWR, Motherboard 24-pin, CPU 8-pin, PCIe 6+2-pin, SATA, Peripheral)
Cavo di alimentazione CA
Viti di montaggio
Manuale dell'utente (questo documento)

Diagram showing the FSP Dagger Pro SFX Power Supply dimensions and a bundle of modular cables.

Image 3.1: Illustration of the compact dimensions of the Dagger Pro PSU and the included modular cable set.

4. Configurazione e installazione

Follow these steps to install your FSP Dagger Pro 850W SFX Power Supply into your computer system.

4.1. Installazione fisica

Prepara il tuo sistema: Ensure your computer is powered off and the power cord is disconnected from the wall outlet. Open your computer case to access the power supply mounting area.
Remove old PSU (if applicable): If replacing an existing power supply, disconnect all cables from components and remove the old PSU from the case.
Mount the new PSU: Carefully place the FSP Dagger Pro 850W into the SFX power supply bay of your case. Secure it using the provided mounting screws. Ensure the fan is oriented correctly for optimal airflow, typically facing inwards or downwards depending on case design.

FSP Dagger Pro 850W SFX Power Supply installed in a computer case, showing the power switch and AC inlet.

Image 4.1: The FSP Dagger Pro PSU mounted in a system, highlighting the rear power switch and AC input.

4.2. Collegamenti dei cavi

The Dagger Pro 850W is a fully modular power supply. Connect only the cables required for your system components.

Avvicinamento view of the modular cable ports on the FSP Dagger Pro 850W SFX Power Supply, labeled for CPU, PCIe, 12V-2x6, Peripheral, and Motherboard.

Immagine 4.2: Dettagliata view of the modular cable connection panel on the PSU.

Motherboard Power (24-pin): Connect the 24-pin ATX cable from the PSU to the corresponding port on your motherboard. Ensure it clicks into place.
CPU Power (4+4-pin or 8-pin): Connect the CPU power cable(s) from the PSU to the CPU power connector(s) on your motherboard. High-end motherboards may require two 8-pin connectors.
PCIe Power (6+2-pin or 12VHPWR):
- For graphics cards requiring 6-pin or 8-pin PCIe connectors, use the provided 6+2-pin cables.
- For NVIDIA RTX 40 series graphics cards or other GPUs requiring the new 12VHPWR connector, use the dedicated 12VHPWR cable. Ensure it is fully seated into both the PSU and the graphics card.
Image 4.3: The 12VHPWR connector on the Dagger Pro PSU, designed for modern high-power graphics cards.
Alimentazione SATA: Collega i cavi di alimentazione SATA ai tuoi SSD, HDD e unità ottiche.
Peripheral Power (Molex): Connect peripheral power cables for case fans, fan controllers, or other accessories that use Molex connectors.
Gestione dei cavi: Disporre i cavi in modo ordinato per migliorare il flusso d'aria e l'estetica all'interno del case.

5. Istruzioni per l'uso

Once all components are connected and secured, you can power on your system.

Collegare l'alimentazione CA: Plug the AC power cord into the power supply's inlet and then into a wall outlet or surge protector.
Power On PSU: Portare l'interruttore di alimentazione sul retro dell'alimentatore in posizione "ON" (I).
Accensione del sistema: Premere il pulsante di accensione sul case del computer.

5.1. Funzionamento della ventola (modalità semi-senza ventola)

The FSP Dagger Pro 850W features a semi-fanless design for optimized low-noise operation. The fan will remain off (0dBA) under low load conditions (typically below 20% load or <25°C internal temperature). As the load increases, the fan will gradually spin up to maintain optimal temperatures, ensuring quiet operation when not under heavy demand.

Fan curve diagram showing fanless, quiet, and cooling modes based on PSU load and temperature.

Image 5.1: Fan operation curve illustrating the semi-fanless mode for reduced noise at low loads.

6. 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 grill to prevent dust buildup. Use compressed air to gently clear dust from the fan and vents. Always disconnect the power cord before cleaning.
Flusso d'aria: Ensure that the power supply's intake and exhaust vents are not obstructed. Maintain good airflow within your computer case to prevent overheating.
Ispezione dei cavi: Controllare di tanto in tanto tutti i collegamenti dei cavi per assicurarsi che siano saldi e privi di danni.

7. Risoluzione Dei Problemi

If you encounter issues with your FSP Dagger Pro 850W power supply, refer to the following common problems and solutions:

Problema	Possibile causa	Soluzione
Il sistema non si accende.	Cavo di alimentazione non collegato. L'interruttore dell'alimentatore è spento. Collegamenti dei cavi allentati. Componente difettoso (scheda madre, CPU, ecc.). PSU protection triggered.	Assicurarsi che il cavo di alimentazione CA sia collegato saldamente all'alimentatore e alla presa a muro. Portare l'interruttore dell'alimentatore in posizione "ON" (I). Check all modular cable connections (24-pin, CPU, PCIe) at both the PSU and component ends. Se possibile, testare i componenti singolarmente. Disconnect all power, wait 5 minutes, then reconnect and try again.
Il sistema si accende ma si spegne immediatamente.	Sovraccarico o cortocircuito. Surriscaldamento. Componente difettoso.	Ensure total system power draw does not exceed 850W. Check for proper component installation and ensure no metal parts are touching the motherboard. Verify adequate case airflow and clean PSU fan/vents.
La ventola non gira.	Semi-fanless mode is active. Ostruzione del ventilatore.	This is normal under low loads. The fan will activate when the load increases. Check for any cables or debris blocking the fan.

If the problem persists after trying these solutions, please contact FSP customer support.

8. Specifiche

Detailed specifications for the FSP Dagger Pro 850W SFX Power Supply (SDA2-850-G5):

Caratteristica	Dettaglio
Nome del modello	SFX PSU
Numero modello articolo	SDA2-850-G5
Fattore di forma	Effetti sonori
Uscita Wattage	850 Watt
Certificazione 80 PLUS	Oro
Standard ATX	Modello ATX 3.1
Standard PCIe	PCIe 5.1 (with native 12VHPWR)
Modularità	Completamente modulare
Metodo di raffreddamento	Aria (ventola da 92 mm, semi-senza ventola)
Dimensioni del prodotto (L x P x A)	5 x 4 x 2.5 pollici (125 x 100 x 63.5 mm)
Peso dell'articolo	4.51 libbre (2.05 chilogrammi)
Dispositivi compatibili	Computer, PC
Produttore	FSP Group U.S.A

Diagram illustrating the single +12V rail design for efficient power delivery to graphics cards.

Image 8.1: Explanation of the single +12V rail design for stable power to VGA cards.

9. Garanzia e supporto

The FSP Dagger Pro 850W SFX Power Supply comes with a Garanzia del produttore di 10 anni, garantendo affidabilità e tranquillità a lungo termine. Questa garanzia copre difetti di materiali e lavorazione in condizioni di normale utilizzo.

For technical support, warranty claims, or further assistance, please visit the official FSP webo contattare il servizio clienti. Conservare la prova d'acquisto per la convalida della garanzia.

Funzionario FSP Websito: https://www.fsplifestyle.com/

FSP SDA2-850-G5