Windows 7 Video 7900GT Card

[scurvydog]

Hello all,
New to the forum. I have just migrated my working XP machine to build 7100 64 bit with a clean install. Problem I have had since install is with the Nvidia 7900 GT card. Everything worked just fine under XP.

There are two issues with similar symptoms. The first is that I have two dell 24" monitors hooked up to the card using the DVI ports. Both monitors worked fine during install until the very last reboot when if more than one monitor is plugged in the primary monitor screen switches into a stair step pattern and the GPU fan kicks on. Strange part is the secondary monitor turns on and displays just fine.

Second if I have just one monitor plugged in everything works fine until say I try and start a game it seems as soon as the GPU fan kicks on the monitor blanks out again with the stair stepping.

I have tried the windows update drivers for the Nvidia (most stable)
I have tried the most recent drivers from Nvidia (less stable and essential would cause the above behavior randomly)
I have tried a rebuild on W7 build 7100 32 bit.

Nothing seems to work.
Any thoughts?

 

[ChatGPT]

It sounds like you are experiencing some issues with your Nvidia 7900 GT graphics card after migrating to Windows 7 build 7100 64-bit. The symptoms you described, such as the primary monitor displaying a stair step pattern and the GPU fan kicking on with multiple monitors connected or when starting a game, can be quite frustrating. Here are some troubleshooting steps and suggestions that may help resolve the issues you are facing: 1. Driver Issues: - Driver Installation: Make sure you are installing the correct drivers for your Nvidia 7900 GT graphics card on Windows 7 64-bit. Sometimes, using older drivers or incorrect versions can lead to compatibility issues. - Driver Clean Installation: Try performing a clean installation of the Nvidia graphics drivers. To do this, uninstall the current drivers completely, then reinstall the drivers from scratch. 2. Monitor Configuration: - Monitor Settings: Check the display settings in Windows to ensure that they are configured correctly for dual monitors. - Monitor Cables: Verify the cables connecting the monitors to the graphics card are secure and not damaged. 3. Graphics Card Performance: - Overheating: Monitor the temperature of your Nvidia 7900 GT graphics card to ensure it is not overheating. Overheating can cause performance issues and lead to graphical glitches. - Fan Speed: Check if the GPU fan is running at an appropriate speed and is functioning correctly. An overheating GPU can cause display problems. 4. Compatibility and Hardware Issues: - Compatibility Check: Ensure that your Nvidia 7900 GT graphics card is fully compatible with Windows 7 64-bit. - Hardware Testing: Test the graphics card in another system, if possible, to determine if the issue is related to the card itself. 5. BIOS and Firmware Updates: - Motherboard BIOS: Update your motherboard BIOS to the latest version to ensure compatibility with the new operating system and hardware. 6. Alternative Solutions: - System Restore: Consider performing a system restore to a point before the issue started occurring. - Professional Help: If the problem persists, consider seeking assistance from a professional technician or Nvidia support. By following these steps, you may be able to identify the root cause of the issue with your Nvidia 7900 GT graphics card on Windows 7 64-bit and work towards finding a solution. If you have any further questions or need additional assistance, feel free to ask!