1. Introduction
The PNY NVIDIA T400 4GB Professional Graphics Card is designed to deliver performance, features, and reliability for professional workflows. This manual provides essential information for the proper installation, operation, and maintenance of your graphics card.
What's in the Box:
- PNY NVIDIA T400 Graphics Card
- ATX Bracket
- mDP to DP Adapter
- Quick Start Guide
- Support Guide
2. Safety Information
- Always power off your computer and disconnect it from the power source before installing or removing any components.
- Handle the graphics card by its edges to avoid touching sensitive components or connectors.
- Ensure proper grounding to prevent electrostatic discharge (ESD) damage.
- Do not expose the card to moisture or extreme temperatures.
- Keep the card away from children.
3. Setup
3.1 Pre-installation
Before beginning installation, ensure your computer is powered off and unplugged. Open the computer case. Verify that your system has an available PCI Express 3.0 x16 slot and adequate space for the card.
3.2 Physical Installation
- Locate an available PCI Express x16 slot on your motherboard.
- Remove the corresponding slot cover from your computer case.
- Carefully align the graphics card with the PCIe slot and press down firmly until it is securely seated.
- Secure the card with the screw or latch mechanism provided by your computer case.

Front view of the PNY NVIDIA T400 graphics card, showing the fan and PCIe connector.

Angled view of the PNY NVIDIA T400 graphics card, highlighting its compact, single-slot design.
3.3 Connecting Displays
Connect your display cables (DisplayPort) to the Mini-DisplayPort outputs on the graphics card. Use the provided mDP to DP adapter if your monitor requires a standard DisplayPort connection. The card supports up to three displays simultaneously.

Close-up view of the three Mini-DisplayPort outputs on the PNY NVIDIA T400 graphics card.
3.4 Driver Installation
After physical installation, power on your computer. Your operating system may install a basic driver. For optimal performance and access to all features, download and install the latest drivers from the official NVIDIA website (www.nvidia.com/drivers) or the PNY support page.
4. Operating Instructions
4.1 Basic Usage
Once drivers are installed, your operating system should detect the graphics card. You can configure display settings, resolution, and multi-monitor setups through your operating system's display settings or the NVIDIA Control Panel.
4.2 Multi-Display Setup
For multi-display configurations, connect all monitors to the Mini-DisplayPort outputs. Use the NVIDIA Control Panel to arrange displays, set resolutions, and configure display modes (e.g., extended desktop, duplicate displays) according to your workflow requirements.
5. Maintenance
5.1 Cleaning
Regularly clean the graphics card fan and heatsink to prevent dust buildup, which can impede cooling and performance. Use compressed air to gently remove dust. Ensure the computer is powered off and unplugged before cleaning. Do not use liquid cleaners directly on the card.
5.2 Driver Updates
Keep your graphics drivers updated to ensure optimal performance, stability, and compatibility with the latest software and operating systems. Check the NVIDIA website periodically for new driver releases.
6. Troubleshooting
6.1 No Display Output
- Ensure the graphics card is fully seated in the PCIe slot and secured.
- Verify that display cables are correctly connected to both the graphics card and the monitor.
- Check if the monitor is powered on and set to the correct input source.
- Try connecting to a different Mini-DisplayPort output on the card.
6.2 Driver Installation Issues
- Ensure you have downloaded the correct driver version for your operating system and graphics card model.
- Uninstall any previous graphics drivers before attempting a new installation.
- Temporarily disable antivirus software during driver installation if issues persist.
6.3 Performance Issues
- Ensure your system meets the recommended specifications for your applications.
- Check for driver updates.
- Monitor the card's temperature to ensure it is not overheating due to insufficient cooling or dust buildup.
- Verify that your power supply unit (PSU) provides sufficient wattage for all system components.
7. Specifications
| Feature | Specification |
|---|---|
| GPU Processor | NVIDIA T400 |
| CUDA Cores | 384 |
| Graphics Memory | 4GB GDDR6 |
| System Interface | PCI-Express 3.0 x16 |
| Memory Speed | 10 GHz |
| Video Output Interface | 3x Mini DisplayPort |
| Max Screen Resolution | 5120 x 2880 @ 60 Hz |
| Item Model Number | VC-T400-4GB-PB |
| Item Weight | 14.1 ounces |
| Product Dimensions | 4.76 x 3.43 x 3.54 inches |
8. Warranty Information
This PNY NVIDIA T400 graphics card is covered by a manufacturer's warranty. For detailed warranty terms, conditions, and registration information, please refer to the official PNY website or the warranty documentation included with your product. Please retain your proof of purchase for warranty claims.
9. Support
For technical assistance, driver downloads, and further support, please visit the official PNY support website: www.pny.com/support. You may also find helpful resources and FAQs on the NVIDIA support portal.





