1. Introduction
Thank you for choosing the SAMA G1000 1000W Fully Modular Power Supply. This unit is designed to provide stable and efficient power for high-performance gaming PCs and workstations. It features 80 Plus Gold and Cybenetics Platinum efficiency, ATX 3.1 and PCIe 5.1 compatibility, a native 12V-2x6 GPU connector, and high-quality Japanese capacitors for enhanced reliability.
2. Package Contents
Please verify that all the following items are included in your package:
- SAMA G1000 1000W Power Supply Unit
- AC Power Cord
- Modular Cable Set:
- 1 x ATX 20+4 Pin Cable
- 2 x CPU 4+4 Pin Cables
- 1 x PCIe 5.1 12V-2x6 (600W) Cable
- 3 x PCIe 6+2 Pin Cables
- 8 x SATA Power Connectors (on multiple cables)
- 4 x MOLEX Power Connectors (on multiple cables)
- Mounting Screws
- User Manual

3. Safety Information
Always observe the following safety precautions during installation and operation:
- Ensure the power supply is unplugged from the wall outlet before installation or maintenance.
- Do not open the power supply unit. High voltages are present inside, which can cause electric shock.
- Install the power supply in a well-ventilated area, away from heat sources and direct sunlight.
- Use only the modular cables provided with your SAMA G1000 power supply. Using incompatible cables may damage the unit or connected components.
- Ensure all cables are securely connected before powering on the system.
4. Setup and Installation
4.1 Preparing for Installation
Before beginning, ensure your computer is completely powered off and unplugged from the wall. It is recommended to work on a non-conductive surface and ground yourself to prevent electrostatic discharge (ESD).
4.2 Installing the Power Supply Unit
- Mount the SAMA G1000 power supply into the designated PSU bay of your PC case using the provided screws. Ensure the fan is facing the correct direction for optimal airflow (typically facing down if there's a bottom vent, or up if the case is sealed at the bottom).
- Connect the 24-pin ATX motherboard cable to the corresponding port on the power supply and your motherboard.
- Connect the 4+4 pin CPU (EPS) power cables to the CPU ports on the power supply and your motherboard. Modern motherboards may require one or two such cables.
- For your graphics card, use the appropriate PCIe power cables. For RTX 40/50 series GPUs, connect the native 12V-2x6 (600W) cable. For other GPUs, use the 6+2 pin PCIe cables. Connect them to the PSU and the graphics card.
- Connect SATA power cables to your storage drives (SSDs, HDDs) and other peripherals. Use Molex cables for any components requiring them.
- Utilize the fully modular design to connect only the necessary cables, improving airflow and cable management within your PC case.


5. Operating Instructions
5.1 Powering On Your System
After all cables are securely connected, plug the AC power cord into the power supply and a wall outlet. Flip the power switch on the back of the PSU to the 'ON' position. You can then power on your computer as usual.
5.2 Efficiency and Performance
The SAMA G1000 is 80 PLUS Gold and Cybenetics Platinum certified, meaning it delivers over 91% energy efficiency. This reduces power waste, lowers operating temperatures, and contributes to a more stable system. Its ATX 3.1 and PCIe 5.1 readiness ensures compatibility and reliable power delivery for the latest high-performance components.

5.3 Quiet Operation (ECO Mode)
The G1000 features an ultra-quiet 140mm Fluid Dynamic Bearing (FDB) fan with an intelligent ECO mode. In ECO mode, the fan remains off under light loads (typically below 40% of rated output power or below 55°C internal temperature) for silent operation. As the load or internal temperature increases, the fan will gradually spin up to maintain optimal cooling.

6. Maintenance
6.1 Cleaning
To ensure optimal performance and longevity, regularly clean your power supply. Power off and unplug your computer before cleaning. Use compressed air to remove dust from the fan and ventilation grilles. Avoid using liquid cleaners directly on the unit.
6.2 Component Quality
The SAMA G1000 utilizes high-quality main Japanese capacitors, known for their reliability and long lifespan. The unit is designed for a Mean Time Between Failures (MTBF) of 100,000 hours and offers corrosion resistance, ensuring durable and stable operation over time.

7. Troubleshooting
7.1 No Power
- Ensure the AC power cord is securely plugged into both the wall outlet and the power supply.
- Verify that the power switch on the back of the PSU is in the 'ON' position.
- Check all modular cable connections, especially the 24-pin ATX and CPU (EPS) cables, to ensure they are fully seated.
7.2 System Instability or Crashes
- Confirm that your system's total power consumption does not exceed the 1000W capacity of the PSU.
- Ensure all PCIe power cables are correctly connected to your graphics card(s).
- Check for proper ventilation around the PSU and within the PC case to prevent overheating.
7.3 Unusual Fan Noise
- The fan operates silently under low loads in ECO mode. Increased fan noise under heavy load is normal.
- If you hear unusual rattling or grinding noises, power off the system and inspect the fan for any obstructions.
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | G1000 |
| Brand | SAMA |
| Wattage | 1000 watts |
| Form Factor | ATX |
| Efficiency Certification | 80 PLUS Gold & Cybenetics Platinum |
| ATX Standard | ATX 3.1 |
| PCIe Standard | PCIe 5.1 (with native 12V-2x6 connector) |
| Cooling Method | Air (140mm Fluid Dynamic Bearing fan with ECO mode) |
| Capacitors | Main Japanese Capacitor |
| MTBF | 100,000 Hours |
| Product Dimensions (L x W x H) | 5.91 x 5.91 x 3.39 inches (150 x 150 x 86mm) |
| Item Weight | 5.61 pounds |
| Maximum Input Voltage | 120 Volts (AC) |
| Compatible Devices | Gaming PC, Workstation |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or visit the official SAMA website. Specific warranty periods and terms may vary by region and retailer.