Problems installing AGP Geforce 6200 driver

[BogdanV]

As the title says, I'm unable to make this graphics card work. Its a Geforce 6200 (no suffix), 256mb manufactured by Gigabyte, running on AGP.

What I tried so far were the stock drivers (76.45), the 81.98 drivers and the unofficial 82.69 drivers.

After installation, I end up with 640x480, 16 colors. NvCplDaemon, nwiz and NvMediaCenter fail to load in the tray/background at startup (no error, they simply don't show).

I am able to chose from 16 colors-16bit color mode and resolutions up until 1024x768, but they don't work.

I do a reboot. After that, I get a errorbox with "There is a problem with your display settings. The adapter type is incorrect or the current settings do not work with your hardware."

Oh and it also happens that when the progress box with the drumrolls anim appears, it stalls at the end. I have to End Task "Windows Setup" and after that the unresponsive Rundll32. It loads the shell, but still no working drivers.

Other stuff : -unofficial 82.69 drivers throw a "unable to find X" box after reboot. I manually enter the path to the unpacked files and it only complains about a version conflict. They don't work nonetheless.

-stock driver happened to either give the errorbox mentioned above or block me in a loop of Unhandled Exception BSODs right after the Win98 load screen.

Does anyone have any idea about what could be wrong ? I also used Driver Cleaner before attempting to install another video driver.

PS: it says that the entire 256mb VRAM is integrated, so no Turbo Cache here, and the Gigabyte-assigned name is GV-N62256DP2-RH if it helps.

[eidenk]

Vcache settings perhaps. Just a wild guess based on some stuff rloew wrote about his unsuccessfull attempts to run a 512MB graphic card.

[dencorso]

I bet eidenk is right. rloew had success with a 6200. Follow my advice in this post. Good luck.

[BogdanV]

Thanks a ton guys! Since eidenk mentioned vcache, I was almost certain that that was the problem.

I tried a different method of managing RAM, using HIMEMX, MaxPhysPage=4800 and MaxFileCache=65535.

Since doing these amendments, I also discovered that by installing the Intel chipset drivers, I would break the video driver. Anyway, with sound, video, network and USB via unofficial patch, I don't think I have to worry about the Intel drivers.

I'll see if I'll run into anymore memory problems (right now I'm using 1152mb out of 2GB RAM).

[rloew]

Vcache settings perhaps. Just a wild guess based on some stuff rloew wrote about his unsuccessfull attempts to run a 512MB graphic card.

I didn't have a problem with 512MB Graphics Cards. I had heard that people were saying it could not be done. I developed a Patch to address a potential issue I saw when experimenting with smaller cards. I had no problem when I bought a 512MB 6200 AGP card.

I did have a problem with a 256MB 6200 PCI card. It crashed before I could even install drivers for it so I returned the card since it may have been defective.

The 81.98 driver does not appear to preallocate the AGP Aperture, so the VCACHE issue or my new Patch Option may not apply.

I am using the card with 2GB of RAM with my RAM Limitation Patch without the new AGP Option.

Edited July 29, 2009 by rloew