1. הקדמה
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.
- גאָר מאָדולאַר פּלאַן: 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.
- 80 PLUS Gold Certified Efficiency: Achieves over 90% efficiency at typical loads, contributing to lower power consumption, reduced heat output, and quieter operation.
- איין +12V רעלס פּלאַן: Provides full power to VGA cards individually, preventing overloading conditions.

Image 1.1: FSP Dagger Pro 850W SFX Power Supply, showcasing its compact design and modular cable interface.
2. זיכערקייַט אינפֿאָרמאַציע
WARNING: Improper installation or use can result in serious injury or damage to equipment. Please read and follow all instructions carefully.
- Always disconnect the power cord from the wall outlet before installing, removing, or cleaning the power supply.
- עפֿנט נישט די מאַכט-צושטעל אַפּאַראַט. הויך וואָלומעןtagעס זענען פאַראַן אינעווייניק, און עס זענען נישטאָ קיין טיילן וואָס דער באַניצער קען סערוויסן. עפֿענען דעם אַפּאַראַט וועט בטל מאַכן די וואָראַנטי.
- 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.
- This product is designed for use in computer systems. Do not use it for any other purpose.
- Keep the power supply away from water, moisture, and extreme temperatures.
3. פּעקל אינהאַלט
באַשטעטיקן אַז דיין פּעקל כּולל די פאלגענדע זאכן:
- 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)
- אַק מאַכט שנור
- מאַונטינג סקרוז
- באַניצער מאַנואַל (דעם דאָקומענט)

Image 3.1: Illustration of the compact dimensions of the Dagger Pro PSU and the included modular cable set.
4. סעטאַפּ און ייַנמאָנטירונג
Follow these steps to install your FSP Dagger Pro 850W SFX Power Supply into your computer system.
4.1. גשמיות ייַנמאָנטירונג
- צוגרייטן אייער סיסטעם: 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.

Image 4.1: The FSP Dagger Pro PSU mounted in a system, highlighting the rear power switch and AC input.
4.2. קאַבלע קאַנעקשאַנז
The Dagger Pro 850W is a fully modular power supply. Connect only the cables required for your system components.

בילד 4.2: דעטאַלירט 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.
- SATA מאַכט: פֿאַרבינדט SATA מאַכט קייבאַלז צו אייערע SSDs, HDDs און אָפּטישע דרייווז.
- Peripheral Power (Molex): Connect peripheral power cables for case fans, fan controllers, or other accessories that use Molex connectors.
- קאַבלע פאַרוואַלטונג: לייגט די קאַבלען אָרדנטלעך צו פֿאַרבעסערן די לופֿטפֿלוס און עסטעטיק אין אייער קעיס.
5. אַפּערייטינג ינסטרוקטיאָנס
Once all components are connected and secured, you can power on your system.
- קאָננעקט AC מאַכט: Plug the AC power cord into the power supply's inlet and then into a wall outlet or surge protector.
- מאַכט אויף PSU: Flip the power switch on the back of the power supply to the "ON" (I) position.
- מאַכט אויף סיסטעם: דריק דעם פּאַוער קנעפּל אויף אייער קאָמפּיוטער קעסטל.
5.1. Fan Operation (Semi-Fanless Mode)
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.

Image 5.1: Fan operation curve illustrating the semi-fanless mode for reduced noise at low loads.
6. וישאַלט
געהעריקע אויפהאלטונג גאראנטירט די לאנגעוויטי און אפטימאלע פאָרשטעלונג פון אייער מאַכט צושטעל.
- רייניקונג: 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.
- לופט לויפן: Ensure that the power supply's intake and exhaust vents are not obstructed. Maintain good airflow within your computer case to prevent overheating.
- קאַבלע דורכקוק: Occasionally check all cable connections to ensure they are secure and free from damage.
7. טראָובלעשאָאָטינג
If you encounter issues with your FSP Dagger Pro 850W power supply, refer to the following common problems and solutions:
| פּראָבלעם | מעגלעך סיבה | לייזונג |
|---|---|---|
| סיסטעם טוט נישט מאַכט אויף. |
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| סיסטעם צינדט זיך אן אבער שליסט זיך אפ גלייך. |
|
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| פאָכער איז נישט ספּיננינג. |
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If the problem persists after trying these solutions, please contact FSP customer support.
8. ספּעסאַפאַקיישאַנז
Detailed specifications for the FSP Dagger Pro 850W SFX Power Supply (SDA2-850-G5):
| שטריך | דעטאַל |
|---|---|
| מאָדעל נאָמען | SFX PSU |
| נומער מאָדעל נומער | SDA2-850-G5 |
| פאָרם פאַקטאָר | SFX |
| רעזולטאַט וואָסtage | 850 וואטס |
| 80 פּלוס סערטאַפאַקיישאַן | גאָלד |
| ATX סטאַנדאַרט | ATX 3.1 |
| PCIe סטאַנדאַרד | PCIe 5.1 (with native 12VHPWR) |
| מאָדולאַריטי | גאַנץ מאָדולאַר |
| קאָאָלינג אופֿן | Air (92mm fan, semi-fanless) |
| פּראָדוקט דימענשאַנז (L x W x H) | 5 X 4 X 2.5 אינטשעס (125 X 100 X 63.5 מם) |
| פּונקט וואָג | 4.51 פונט (2.05 קילאָגראַמס) |
| קאַמפּאַטאַבאַל דעוויסעס | Computer, PC |
| פאַבריקאַנט | FSP גרופע USA |

Image 8.1: Explanation of the single +12V rail design for stable power to VGA cards.
9. וואָראַנטי און שטיצן
The FSP Dagger Pro 850W SFX Power Supply comes with a 10-יאָר פאַבריקאַנט ס וואָראַנטי, וואָס זיכערט לאַנג-טערמין פאַרלעסלעכקייט און שלום פון גייַסט. די וואָראַנטי דעקט חסרונות אין מאַטעריאַלן און אַרבעט אונטער נאָרמאַל נוצן.
For technical support, warranty claims, or further assistance, please visit the official FSP webזייטל אדער קאנטאקט זייער קאסטומער סערוויס דעפארטמענט. האלט אייער באווייז פון קויפן פאר גאראנטיע וואַלידאציע.
FSP Official Webפּלאַץ: https://www.fsplifestyle.com/





