Introduction
This manual provides essential information for the installation, operation, and maintenance of your SilverStone Technology DA750R Gold 750W ATX 3.0 & PCIe 5.0 Power Supply. Please read these instructions carefully before installation to ensure proper functionality and safety.
Safety Information
- Always disconnect the power supply from the AC outlet before installation or maintenance.
- Do not open the power supply unit. High voltages are present inside, which can cause electric shock.
- Ensure proper grounding of your computer system.
- Use only the modular cables provided with this power supply. Using incompatible cables may damage the PSU or connected components.
- Avoid installing the power supply in environments with high humidity or extreme temperatures.
Package Contents
- SilverStone DA750R Gold 750W Power Supply
- Modular Cable Set (including 12V-2x6 PCIe Gen5 connector)
- AC Power Cord
- Mounting Screws
- User Manual (this document)
Product Overview
The SilverStone DA750R Gold is a 750W 80 PLUS Gold certified power supply designed for modern computer systems, compliant with ATX 3.0 and featuring a PCIe Gen5 12V-2x6 connector. Its compact 140mm depth allows for versatile installation.
Figure 1: Front view of the SilverStone DA750R Gold Power Supply, showcasing its compact design.
Figure 2: Top view of the power supply, highlighting the fan grill for optimal airflow.
Modular Connector Panel
The fully modular design allows for connecting only the necessary cables, improving airflow and cable management within your PC case.
Figure 3: Modular connector panel, showing clearly labeled ports for MB 24 PIN, EPS, SATA/PERIPHERAL, 12V-2x6, and PCIe cables.
Rear Panel and Controls
The rear panel includes the AC power inlet, a main power switch, and an ECO mode switch for fan control.
Figure 4: Rear panel of the power supply, featuring the AC input, main power switch, and ECO mode switch.
Setup and Installation
- Prepare Your System: Ensure your computer case is compatible with ATX power supplies. Disconnect all power from your existing system.
- Mount the Power Supply: Secure the DA750R Gold into the designated PSU bay of your computer case using the provided mounting screws. Ensure the fan is oriented correctly for optimal airflow (typically facing down if there's a bottom vent, or up if not).
- Connect Modular Cables: Identify the necessary cables for your motherboard, CPU, graphics card(s), and storage devices. Refer to Figure 3 for the modular connector panel layout.
- Motherboard: Connect the 24-pin ATX cable to the MB 24 PIN port on the PSU and to your motherboard.
- CPU: Connect the 8-pin (4+4 pin) EPS cable(s) to the EPS port(s) on the PSU and to your motherboard's CPU power connector(s).
- Graphics Card (GPU): For modern GPUs, use the 12V-2x6 PCIe Gen5 cable. Connect it to the 12V-2x6 port on the PSU and to your graphics card. For older GPUs, use the standard 6+2 pin PCIe cables.
- Storage/Peripherals: Connect SATA and peripheral (Molex) cables to the SATA / PERIPHERAL ports on the PSU and to your hard drives, SSDs, and other devices.
- Cable Management: Utilize the flat design of the modular cables for easier routing and improved airflow within your case.
- Connect AC Power: Once all internal connections are secure, connect the AC power cord to the PSU's AC inlet and then to a wall outlet or surge protector.
Figure 5: Illustration of the flat modular cables, designed for flexible routing and improved cable management.
Operating Instructions
- Power On: After connecting all cables, ensure the main power switch on the rear of the PSU (refer to Figure 4) is in the 'ON' position. Then, power on your computer system.
- ECO Mode (Semi-Fanless Operation): The DA750R Gold features an ECO mode switch on the rear panel.
- When the ECO switch is 'ON', the PSU fan will remain off under low load conditions, providing silent operation. The fan will automatically activate when the load increases or internal temperature rises.
- When the ECO switch is 'OFF', the PSU fan will operate continuously, regardless of load, providing maximum cooling at all times.
- Power Off: To shut down your system, perform a proper software shutdown through your operating system. For complete power disconnection, switch the main power switch on the PSU to the 'OFF' position and unplug the AC power cord.
Maintenance
- Cleaning: Periodically clean the exterior of the power supply and its fan grill using a soft, dry cloth. For deeper cleaning, use compressed air to remove dust from the fan and internal components, ensuring the system is powered off and unplugged.
- Cable Inspection: Regularly check all modular cable connections to ensure they are securely seated.
- Environment: Maintain a clean, dust-free, and well-ventilated environment for your computer system to ensure optimal PSU performance and longevity.
Troubleshooting
No Power
- Ensure the AC power cord is securely connected to both the PSU and the wall outlet.
- Verify the main power switch on the PSU's rear panel is in the 'ON' position.
- Check all modular cable connections (24-pin ATX, EPS, PCIe) to ensure they are fully seated.
- Test the wall outlet with another device to confirm it has power.
- If possible, test the PSU with a PSU tester or in another known working system.
System Instability / Random Shutdowns
- Ensure the PSU is adequately rated for your system's total power consumption, especially under load.
- Check for proper ventilation around the PSU and within the case to prevent overheating.
- Verify that all power connectors to components (motherboard, CPU, GPU) are correctly installed.
- Consider updating motherboard BIOS and graphics card drivers.
Fan Not Spinning (in ECO Mode)
- This is normal behavior when the ECO switch is 'ON' and the system load is low. The fan will activate automatically when needed.
- If you prefer continuous fan operation, switch the ECO mode to 'OFF' on the rear panel.
Specifications
Figure 6: Product label detailing electrical specifications and certifications.
| Feature | Detail |
|---|---|
| Model Name | SST-DA750R-GMA |
| Item Model Number | SST-AX0750MCGD-C |
| Output Wattage | 750W |
| 80 PLUS Certification | Gold |
| ATX Standard | ATX 3.0 |
| PCIe Connector | 12V-2x6 (PCIe Gen5) |
| Form Factor | ATX |
| Cooling Method | Air (120mm fan with semi-fanless operation) |
| Power Supply Design | Full Modular |
| Dimensions (LxWxH) | 5.51 x 5.91 x 3.39 inches (140 x 150 x 86 mm) |
| Weight | 5.46 pounds |
| Operating Temperature | Up to 50°C |
| AC Input | 100-240VAC / 9-4.5A / 50-60Hz |
| DC Output | +3.3V: 20A, +5V: 20A, +12V: 62.5A, -12V: 0.3A, +5VSB: 3A |
| Max. Power | +3.3V/+5V: 100W, +12V: 750W, -12V: 3.6W, +5VSB: 15W |
Warranty Information
SilverStone Technology products are manufactured with high-quality components and undergo strict quality control. This product is covered by a limited warranty. Please refer to the official SilverStone Technology website or your product packaging for specific warranty terms and conditions applicable to your region.
Support
For technical support, troubleshooting assistance, or further inquiries, please visit the official SilverStone Technology website or contact their customer service department. You can find contact information and FAQs at www.silverstonetek.com.
