Check in BIOS under Advanced settings -> Chip Configuration, what mode is selected for AGP.

kixs wrote on 2023-09-06, 19:40:

Check in BIOS under Advanced settings -> Chip Configuration, what mode is selected for AGP.

Thank you for the answear! I forgot to write that I set into the BIOS AGP 4x too.

Reinstalling the Via 4 in 1 drivers in Turbo mode should do it. You can likely use Rivatuner to force it on as well.

Nvidia drivers often force 2X on chipsets not made by Intel. On AGP 4x chipsets other than Intel's, 4x is usually unreliable.

swaaye wrote on 2023-09-06, 22:42:

Nvidia drivers often force 2X on chipsets not made by Intel. On AGP 4x chipsets other than Intel's, 4x is usually unreliable.

I think you are right. I found on asus.com a reg file to enable agp 4x with nVidia GPU but it doesn't work... 🙁
Maybe I have to change the graphics card or the motherboard...

TrueVegas wrote on 2023-09-07, 12:38:

swaaye wrote on 2023-09-06, 22:42:

Nvidia drivers often force 2X on chipsets not made by Intel. On AGP 4x chipsets other than Intel's, 4x is usually unreliable.

I think you are right. I found on asus.com a reg file to enable agp 4x with nVidia GPU but it doesn't work... 🙁
Maybe I have to change the graphics card or the motherboard...

Other cards are likely to do the same thing. ATI has SmartGART which tests your motherboard and will often drop speed on non-Intel AGP 4x boards.

Being at 2X isn't really anything to worry about. The speed difference is minimal with games you will play on a GeForce 2.

If you want more solid AGP you want either an Intel chipset or to go up to AGP 8x motherboards.

TrueVegas wrote on 2023-09-07, 12:38:

swaaye wrote on 2023-09-06, 22:42:

Nvidia drivers often force 2X on chipsets not made by Intel. On AGP 4x chipsets other than Intel's, 4x is usually unreliable.

I think you are right. I found on asus.com a reg file to enable agp 4x with nVidia GPU but it doesn't work... 🙁
Maybe I have to change the graphics card or the motherboard...

Install Rivatuner, force AGP 4x, and test it in benchmarks and games. The difference will be likely almost unnoticeable, but that way you'll know for sure.

I recently picked up a computer with a Tyan S1854 with a P3 450, and spent this morning installing Windows 98SE. The video card is a Quadro 2 Pro, and I used the 45.23 driver. After running 3D Mark 2000 a few times, adjusting the memory and such to get a higher score, I thought I'd try AGP 4x. I set it to 4X in the CMOS settings, then used Riva Tuner to force it to 4x. It very quickly locked up when I ran 3D 2000, so I set it back to off. You never know for sure unless you try.