FSP FlexGURU Pro 650W Flex ATX Power Supply User Manual

1. Consignes de sécurité importantes

Please read these safety instructions carefully before installing or operating your FSP FlexGURU Pro 650W power supply. Failure to follow these instructions may result in electric shock, fire, or damage to the product and connected components.

• Risque électrique : N'ouvrez pas le bloc d'alimentation. Haute tensiontages are present inside, even when the unit is unplugged. There are no user-serviceable parts inside.
• Ventilation: Ensure adequate airflow around the power supply. Do not block ventilation openings. Overheating can lead to performance degradation or failure.
• Humidité: Keep the power supply away from water, humidity, and liquids. Do not operate in damp ou des conditions humides.
• Source d'alimentation : Connect the power supply only to a grounded electrical outlet with the correct voltage and frequency as specified on the unit's label.
• Installation: Install the power supply in a well-ventilated computer chassis. Ensure all cables are properly connected and secured.
• Manutention: Handle the power supply with care. Avoid dropping or subjecting it to strong impacts.
• Enfants: Keep the power supply and its components out of reach of children.

2. Produit terminéview

The FSP FlexGURU Pro 650W is a high-efficiency Flex ATX power supply designed for compact systems requiring stable and reliable power. It complies with the latest ATX 3.1 and Flex ATX V2.1 standards, offering robust performance for current and future high-end hardware. With 80 PLUS Platinum certification, it ensures up to 92% efficiency, reducing power loss and heat generation.

Image: The FSP FlexGURU Pro 650W power supply, illustrating its compact dimensions of 5.90 inches (L) x 3.20 inches (W) x 1.59 inches (H).

3. Principales caractéristiques

• New-Gen ATX 3.1 & Flex ATX V2.1 Compliance: Fully compliant with both the latest ATX 3.1 and Flex ATX V2.1 regulations, ensuring exceptional system stability and peak performance when paired with current and future high-end hardware in compact chassis.


Image: The FSP FlexGURU Pro power supply highlighting its ATX 3.1 and Flex ATX V2.1 dual compliance for modern systems.

• 80 PLUS Platinum Efficiency : Achieves the prestigious 80 PLUS Platinum standard, delivering up to 92% efficiency to significantly reduce power loss and energy costs. This high-efficiency design minimizes heat generation, allowing for ultra-quiet operation and extending the lifespan of your components.

Image: A graph illustrating the 92% typical efficiency conversion of the FlexGURU Pro 650W power supply at various load levels for both 115V and 230V inputs.
• Optimized Low-Noise Performance: Equipped with a 40mm ball-bearing fan, smart fan control, and unique shielding design to significantly lower acoustic noise and deliver a consistent, near-silent computing experience.
• High Compatibility & Versatile Installation: Includes a universal fix bracket, allowing this 650W model to easily integrate and transform into reliable 1U IPC (Industrial PC), Networking, or Surveillance power supplies.
• Premium Japanese Electrolytic Capacitors: The FlexGURU PRO series utilizes main Japanese electrolytic capacitors to ensure exceptionally stable outputs, maximum longevity, and long-term reliability under continuous operation.


Image : Un gros plan view of a Japanese electrolytic capacitor, emphasizing the quality components used in the FlexGURU Pro series for stable outputs and reliability.

• Complete Protection for Diverse Applications: Designed and tested to the highest standards, featuring full protections (UVP, OVP, SCP, OPP, OTP, SIP, NLO). Ideal for specialized solutions like Edge Computing, NAS, HTPC, POS terminals, and Industrial PC builds.

4. Contenu du colis

Vérifiez que tous les éléments sont présents dans votre colis :

• FSP FlexGURU Pro 650W Power Supply Unit
• Cordon d'alimentation secteur
• Modular Cable Set (if applicable, this model is non-modular but includes various fixed cables)
• 1U Universal Fix Bracket
• Vis de montage
• Manuel de l'utilisateur (ce document)

Image: A diagram showing the types and quantities of all black round cables included with the power supply: 1x MB 20+4 PIN, 2x CPU 8 PIN / 4+4 PIN, 2x PCIe 6+2 PIN, 2x 2 SATA, and 1x 2 MOLEX / FLOPPY.

5. Guide d'installation

5.1 Liste de contrôle de pré-installation

• Assurez-vous que votre ordinateur est complètement éteint et débranché de la prise murale.
• Discharge any residual power by pressing the power button on your PC for a few seconds.
• Gather necessary tools: screwdriver, zip ties (optional for cable management).

5.2 Montage de l'alimentation

The FSP FlexGURU Pro 650W can be installed in standard Flex ATX chassis or adapted for 1U IPC applications using the included bracket.

1. Carefully remove your old power supply (if applicable).
2. Position the FSP FlexGURU Pro 650W into the power supply bay of your chassis.
3. Secure the power supply using the provided mounting screws. For 1U IPC applications, attach the universal fix bracket to the power supply first, then mount it into the 1U chassis.

Image: The FlexGURU Pro power supply shown with the 1U bracket attached, demonstrating its adaptability for 1U IPC power supply applications.

5.3 Câbles de connexion

Connect the power supply cables to the corresponding components in your system. Refer to your motherboard and component manuals for specific connection points.

• 20+4 Pin Main Power Connector: Connect to the motherboard.
• CPU 8 Pin / 4+4 Pin Connector: Connect to the CPU power input on the motherboard.
• PCIe 6+2 Pin Connector: Connect to graphics cards or other PCIe devices requiring auxiliary power.
• Connecteurs d'alimentation SATA : Connect to SATA hard drives, SSDs, and optical drives.
• MOLEX / Floppy Connectors: Connect to older peripherals or case fans.

Ensure all connections are firm and secure. Improper connections can cause system instability or damage.

6. Fonctionnement

After installation, ensure all components are correctly connected and the power supply is securely mounted.

1. Branchez le cordon d'alimentation secteur à l'alimentation, puis à une prise murale mise à la terre.
2. Basculez l'interrupteur d'alimentation situé à l'arrière du bloc d'alimentation sur la position « ON » (I).
3. Appuyez sur le bouton d'alimentation de votre ordinateur pour démarrer le système.

The power supply's 40mm ball-bearing fan will operate automatically, controlled by smart fan technology to maintain optimal temperature and minimize noise.

7. Maintenance et entretien

To ensure the longevity and optimal performance of your FSP FlexGURU Pro 650W power supply, follow these maintenance guidelines:

• Nettoyage: Periodically clean the exterior of the power supply and its fan grille to prevent dust buildup. Use compressed air to gently clear dust from the fan and vents. Ensure the power supply is unplugged before cleaning.
• Environnement: Operate the power supply in a clean, dry, and well-ventilated environment. Avoid extreme temperatures.
• Gestion des câbles: Ensure cables are neatly routed and do not obstruct airflow within the chassis.
• Inspection: Occasionally inspect power cables for any signs of damage or fraying. Replace damaged cables immediately.

8. Dépannage

Si vous rencontrez des problèmes avec votre alimentation, reportez-vous aux étapes de dépannage courantes suivantes :

• Pas d'alimentation :
  • Vérifiez que le cordon d'alimentation secteur est bien branché à la fois à la prise de courant et à la prise murale.
  • Assurez-vous que l'interrupteur d'alimentation à l'arrière du bloc d'alimentation est en position « ON » (I).
  • Vérifiez que la prise murale est fonctionnelle en y branchant un autre appareil.
  • Check all internal power connections (20+4 pin, CPU, PCIe) to ensure they are firmly seated.
• Instabilité du système/Arrêts aléatoires :
  • Assurer l'alimentation électriquetage est suffisant pour tous les composants de votre système.
  • Check for proper ventilation within the chassis to prevent overheating.
  • Verify that all power cables are correctly connected and not loose.
  • Si possible, testez l'alimentation avec un autre ensemble de composants ou dans un autre système afin d'isoler le problème.
• Bruit de ventilateur fort :
  • Ensure the power supply fan grille is free from dust and obstructions.
  • Verify that the system is not under excessive load, causing the fan to spin faster.
  • Ensure adequate case airflow to prevent the PSU from drawing in hot air.

If the problem persists after attempting these steps, please contact FSP customer support for further assistance.

9. Spécifications techniques

Detailed specifications for the FSP FlexGURU Pro 650W Power Supply (FSP650-50FUB):

Image: A table detailing the AC Input and DC Output specifications for the FlexGURU Pro 650W, including Max Output Current and Max Combined Power for +3.3V, +5V, +12V, +5Vsb, and -12V rails, with a total power of 650W.

10. Applications polyvalentes

The FSP FlexGURU Pro 650W power supply is designed for a wide range of applications due to its compact size, high efficiency, and robust protections:

• Industrial PC (IPC) builds
• Point of Sale (POS) terminals
• Network communication devices
• Surveillance systems
• Edge Computing solutions
• Home Theater Personal Computers (HTPC)
• Network Attached Storage (NAS) servers
• Gaming & Creator PCs (in compact chassis)

Image: Icons depicting versatile industrial applications for the FlexGURU Pro series, including Industrial PC, Point of Sale System, Network communication, Surveillance, Edge Computer, Home Theater Personal Computer, NAS Server, and Gaming & Creator PC.

11. Garantie et assistance

The FSP FlexGURU Pro 650W Power Supply (FSP650-50FUB) comes with a Garantie de 5 ans à compter de la date d'achat. Cette garantie couvre les défauts de matériaux et de fabrication dans des conditions normales d'utilisation.

For warranty claims, technical support, or any product-related inquiries, please contact FSP customer service through their official website or the retailer where the product was purchased. Please have your proof of purchase and product model number (FSP650-50FUB) ready when contacting support.

Ressources en ligne : For additional information, FAQs, and driver downloads, please visit the official FSP website: www.fspgroupusa.com