Did you installed first via 4-in-1 driver version 3.xx?
And directX redist around 7-8.1.

shevalier wrote on 2026-08-24, 08:58:

Did you installed first via 4-in-1 driver version 3.xx?
And directX redist around 7-8.1.

No...

I tried DirectX 7, and there was no change.

I'm also not seeing a source for version 3 of Via's 4-in-1 package.

Edit:

I tried the old drivers that came on the motherboard's disc.
They aren't 4-in-1 version 3, but they aren't helping either.

There must be something else I'm missing.

Edit 2:

I tired using an Nvidia Riva TNT2/M64 card, and it's getting the same problem.

The issue must be on the motherboard side.

AGP is moreorless broken on socket 7. A voodoo3 would give you the least amount of trouble I suspect. Does the card still work, have you tried a benchmark? have you had a look at/tested the drivers with dxdiag?

Are there any IRQ conflicts? Does an IRQ get assigned to the card or not? (try changing Assign IRQ to PCI-VGA in BIOS) and have a look at the card's properties (Resource allocations) in device manager

I'm not much of a fan or expert when it comes to the Super Socket 7 platform. I just happened to end up with one—the same PC Partner board on a VIA MVP3.
My MX440 only started working on the fifth try by brute-force trial and error with different drivers.
Meanwhile, drivers for the GF5200 or Radeon 9100 wouldn't install properly—AGP texturing just refused to turn on.
As far as I can see, some people get it running on the first try. For all other cases, you need Voodoo magic.
Cheap VIA chipset motherboards are a total crapshoot.🙁

FWIW I've also had issues with VIA chipset drivers, specifically related to the AGP bridge. Eventually switched to something else and that solved it, in a manner of speaking.

Hitting the AGP slot with some contact cleaner might help, can't hurt. If there is a setting for AGP speed in the CMOS settings, try 1x. Have you tried manually updating the card's driver from Device Manager?

How about reducing speed or disabling various AGP features with RivaTuner, unless there are BIOS settings for them of course? I got AGP 4x to work on my KT133A board by disabling sideband addressing.

I think I solved it!

Something in Nvidia's setup program messes it up, but updating the video driver from Device Manager works.

What I did:

• After Windows reboots with its own drivers configured, resolve any PCI IRQ conflicts.
• Install VIA's AGP driver before any others, then reboot.
• Update the video card's driver from the files in the nvidia_9x_5.32 setup folder from Phil's Computer Lab, DO NOT RUN THE SETUP PROGRAM.

After this, Windows will recognize the video card properly without complaining, and allow True Color mode and higher resolutions.