1. Introduction
The Matrox Millennium G550 PCIe graphics card is designed to bring the reliability, stability, and features of the proven Millennium G550 product line to PCI Express systems. Its x1 design ensures compatibility with all compliant PCI Express slots, making it particularly useful for systems that may not have available PCI Express x16 slots.
This graphics card offers robust display capabilities and is notable for being the world's first PCI Express graphics card with open-source display drivers available for Linux and other Unix-like operating systems, in addition to standard Matrox display drivers for Windows environments.
Key features include:
- PCI Express x1 interface for broad compatibility.
- 32 MB of dedicated graphics memory.
- Maximum resolution support of 2048 x 1536.
- Dual display support via DVI outputs.
2. Package Contents
Please verify that all items are present in your product package:
- Matrox Millennium G550 PCIe Graphics Card
- Driver CD (or link to download drivers)
- Documentation (this user manual)
- DVI to VGA Adapter (may be included for legacy monitor support)

Figure 2.1: Retail packaging for the Matrox Millennium G550 PCIe Graphics Card.
3. System Requirements
Before installing your Matrox Millennium G550 PCIe Graphics Card, ensure your system meets the following minimum requirements:
- Available PCI Express x1 slot (compatible with x4, x8, x16 slots).
- Compatible Operating System: Windows (XP, Vista, 7, etc.) or Linux/Unix-like operating systems.
- Minimum 256MB System RAM (512MB recommended).
- CD-ROM drive or internet access for driver installation.
- Monitor with DVI-I input (or VGA input if using the DVI to VGA adapter).
4. Installation Guide
4.1. Hardware Installation
- Power Off System: Completely shut down your computer and disconnect the power cord from the wall outlet.
- Open Computer Case: Remove the side panel of your computer case to access the motherboard.
- Locate PCI Express x1 Slot: Identify an available PCI Express x1 slot on your motherboard. These slots are typically shorter than x16 slots but are compatible with the G550 PCIe x1 card.
- Remove Slot Cover: Remove the metal slot cover corresponding to the chosen PCIe slot on the back of your computer case.
- Insert Graphics Card: Carefully align the Matrox Millennium G550 PCIe card with the chosen slot and press firmly until it is fully seated. Ensure the card's bracket aligns with the opening in the case.
- Secure Card: Secure the graphics card to the computer case using the screw or retention clip from the removed slot cover.
- Close Case: Replace the computer's side panel and reconnect the power cord.
- Connect Monitor: Connect your monitor's DVI cable to one of the DVI ports on the graphics card. If your monitor uses VGA, use the provided DVI to VGA adapter.

Figure 4.1: The Matrox Millennium G550 PCIe Graphics Card, showing its heatsink and dual DVI outputs.

Figure 4.2: Detail view of the dual DVI-I output ports on the graphics card.
4.2. Driver Installation
- Boot System: Power on your computer. The operating system may detect new hardware and attempt to install generic drivers.
- Install Matrox Drivers:
- From CD: Insert the Matrox driver CD into your CD-ROM drive and follow the on-screen instructions to install the drivers and Matrox PowerDesk software.
- From Download: If no CD is provided or for the latest drivers, visit the official Matrox website (www.matrox.com/graphics) and navigate to the support section for the Millennium G550 PCIe to download the appropriate drivers for your operating system. Run the downloaded installer and follow the prompts.
- Restart Computer: After the driver installation is complete, restart your computer to ensure all changes take effect.
5. Operating Instructions
5.1. Display Configuration
Once the drivers are installed, you can configure your display settings:
- Windows: Right-click on your desktop and select 'Display settings' or 'Screen resolution'. From here, you can adjust resolution (up to 2048x1536), refresh rate, and configure multiple displays (extend desktop, duplicate displays).
- Linux/Unix: Configuration typically involves using the display settings utility provided by your desktop environment (e.g., GNOME Display Settings, KDE System Settings) or by manually editing Xorg configuration files for advanced setups.
5.2. Matrox PowerDesk Software (Windows)
The Matrox PowerDesk software provides advanced control over your display settings, including:
- Fine-tuning display properties.
- Setting up desktop management features.
- Accessing diagnostic tools.
Refer to the PowerDesk help documentation for detailed instructions on using its features.
6. Maintenance
The Matrox Millennium G550 PCIe Graphics Card is designed for long-term reliability with minimal maintenance. However, following these guidelines can help ensure optimal performance and longevity:
- Keep Clean: Periodically, and with the system powered off and unplugged, use compressed air to gently clear dust from the heatsink and fan (if present) on the graphics card. Dust buildup can impede cooling.
- Ensure Airflow: Make sure your computer case has adequate ventilation. Avoid blocking air vents and ensure internal cables do not obstruct airflow around the graphics card.
- Driver Updates: Regularly check the Matrox website for updated drivers. Newer drivers can provide performance improvements, bug fixes, and enhanced compatibility.
7. Troubleshooting
If you encounter issues with your Matrox Millennium G550 PCIe Graphics Card, consider the following troubleshooting steps:
- No Display/Black Screen:
- Ensure the monitor is powered on and correctly connected to the graphics card.
- Verify the graphics card is fully seated in its PCIe slot.
- Try connecting the monitor to a different display output on the card, if available.
- Test with a different monitor or cable if possible.
- Low Resolution/Incorrect Display:
- Ensure the correct Matrox drivers are installed. Reinstall them if necessary.
- Check your operating system's display settings to ensure the correct resolution and refresh rate are selected.
- Driver Installation Issues:
- Disable any antivirus software temporarily during driver installation.
- Ensure you have administrator privileges on your operating system.
- Download the drivers directly from the official Matrox website to ensure integrity.
- System Instability/Crashes:
- Ensure your system's power supply unit (PSU) meets the minimum requirements for all installed components.
- Check for overheating. Ensure proper airflow within the case.
- Run system diagnostics to check for other hardware conflicts.
For further assistance, please refer to the Matrox support website or contact their technical support.
8. Technical Specifications
| Feature | Specification |
|---|---|
| Model Number | G55-MDDE32F |
| Graphics Processor | Matrox |
| Graphics Memory | 32 MB |
| Interface | PCI Express x1 |
| Maximum Resolution | 2048 x 1536 |
| Video Output Interface | Dual DVI-I (with DVI to VGA adapter support) |
| Product Dimensions | 8.6 x 1.6 x 6.4 inches |
| Item Weight | 8.8 ounces |
| Date First Available | June 12, 2006 |
9. Warranty and Support
The Matrox Millennium G550 PCIe Graphics Card is covered by a manufacturer's limited warranty. Please refer to the warranty information provided with your product or visit the official Matrox website for details regarding warranty terms, conditions, and duration.
For technical support, driver downloads, FAQs, and additional resources, please visit the Matrox Graphics support page at www.matrox.com/graphics/support. You may also find helpful information in the customer reviews and community forums related to this product.







