Introduction
This manual provides essential information for the installation, operation, and maintenance of your GIGABYTE GeForce GTX 1660 Ti OC 6G graphics card. This graphics card is powered by the GeForce GTX 1660 Ti, integrated with 6GB GDDR6 memory, and features the WINDFORCE 2X cooling system with alternate spinning fans. It offers intuitive controls via the AORUS engine and includes 1 HDMI and 3 DisplayPort outputs, supporting PCI Express 3.0 x16.
Setup
1. Physical Installation
Ensure your computer is powered off and unplugged before beginning installation. Open your computer case and locate an available PCI Express 3.0 x16 slot on your motherboard. Carefully insert the graphics card into the slot until it is firmly seated. Secure the card with the retaining screw or clip from your PC case.

Figure 1: Side view of the graphics card, highlighting the 8-pin power connector.
2. Power Connection
Connect a single 8-pin power connector from your power supply unit (PSU) to the corresponding port on the graphics card. Ensure the connection is secure.
3. Display Connection
Connect your monitor(s) to the graphics card using the available display outputs. The card features 1 HDMI port and 3 DisplayPort 1.4 outputs. Choose the appropriate cable for your monitor(s).

Figure 2: Rear view of the graphics card, showing the display output ports.
4. Driver Installation
After physical installation, close your PC case, plug in the power, and turn on your computer. Install the latest graphics drivers from the official NVIDIA or GIGABYTE website to ensure optimal performance and compatibility.
Operating
The GIGABYTE GeForce GTX 1660 Ti OC 6G is designed for high-performance gaming and demanding applications. It delivers high frame rates at 1440p for competitive games and can achieve 60fps at 1440p for many modern AAA titles. For an even smoother experience, especially in very demanding games, you may opt to play at 1080p resolution.

Figure 3: Front view of the graphics card with its dual-fan cooling system.
AORUS Engine Software
Utilize the GIGABYTE AORUS Engine software for intuitive control over your graphics card. This software allows you to monitor performance, adjust clock speeds, and customize fan settings to optimize cooling and noise levels according to your preferences.
Maintenance
To ensure the longevity and optimal performance of your graphics card, regular maintenance is recommended:
- Dust Removal: Periodically clean the fans and heatsink to prevent dust buildup, which can impede airflow and lead to higher temperatures. Use compressed air for best results.
- Driver Updates: Keep your graphics drivers updated to the latest version available from NVIDIA or GIGABYTE. Driver updates often include performance improvements and bug fixes.
- System Airflow: Ensure your PC case has adequate airflow to help dissipate heat generated by the graphics card and other components.
Troubleshooting
If you encounter issues with your graphics card, consider the following troubleshooting steps:
- No Display: Verify that the graphics card is properly seated in the PCI Express slot and that all power cables are securely connected. Check that your monitor is connected to the graphics card's output, not the motherboard's integrated graphics.
- Driver Issues: If you experience crashes or graphical anomalies, try reinstalling the graphics drivers. Use a clean installation option if available.
- Overheating: Monitor the card's temperature using the AORUS Engine software. If temperatures are consistently high, ensure proper case airflow and clean any dust from the heatsink and fans.
- Performance Problems: Ensure your system meets the minimum requirements for the games or applications you are running. Check for background processes consuming resources.
Specifications
| Feature | Specification |
|---|---|
| Graphics Processing Unit | NVIDIA GeForce GTX 1660 Ti |
| Video Memory | 6GB GDDR6 |
| Memory Interface | 192-bit |
| Memory Speed | 12000 MHz |
| Max Digital Resolution | 7680x4320 |
| Output Ports | 1 x HDMI 2.0B, 3 x DisplayPort 1.4 |
| Bus Standard | PCI Express 3.0 x16 |
| Cooling System | WINDFORCE 2X with alternate spinning fans |
| Item Model Number | GV-N166TOC-6GD |
| Item Weight | 1.74 pounds |
| Dimensions (LxWxH) | 8.82 x 4.76 x 1.57 inches |
Warranty and Support
For warranty information and technical support, please refer to the official GIGABYTE website or contact their customer service. The product package typically includes a graphic card and a user manual. Keep your purchase receipt for warranty claims.





