agp 4x

[pieter]

i cant get my nvidia geforce2 mx to work in AGP 4x mode

[MacGyver]

What motherboard do you have? Some combinations of motherboards and video cards simply will not work at AGP 4X. You have to drop down to 2X in your system's BIOS.

Have you updated your BIOS on the motherboard and video card?

[http://forums.windrivers.com/cgi-bin/forum1/noncgi]

Yep. I found out the hard way that the Tyan Trinity 400 and the Matrox G400 don't mix, something having to do with 4x AGP. <IMG SRC="smilies/frown.gif" border="0"> I wouldn't doubt that there are other bad combos. Check the web site for your motherboard and video card manufacturer.

[Dazz]

Most likly it is a VIA board in which case you won't get 4x AGP stable!

[ScoreCentral]

My VIA board is in 4x AGP and it is quite stable and fast.

I suggest if you own a VIA motherboard you go to www.viahardware.com (http://www.viahardware.com) and download the latest 4in1 VIA drivers. The latest official and stable version is 4.32.

[Darren Wilson]

Try HERE (http://www.viahardware.com/agp4xfix.shtm)

From GeForceFAQ.com

In the 5.16 and later drivers in Windows 9x you can use the viaagp4xon.reg registry file to enable AGP4X on VIA 133mhz chipset motherboards only - available here: http://www.geforcefaq.com/files/viaagp4xon.reg
If you have problems after enabling this, use the viaagp4xoff.reg registry file to disable it again - available here: http://www.geforcefaq.com/files/viaagp4xoff.reg

In the 5.16 and later drivers in Windows 2000 you can use the viaagp4xonw2k.reg registry file to enable AGP4X on VIA 133mhz chipset motherboards only - available here: http://www.geforcefaq.com/files/viaagp4xonw2k.reg
If you have problems after enabling this, use the viaagp4xoffw2k.reg registry file to disable it again - available here: http://www.geforcefaq.com/files/viaagp4xoffw2k.reg

Check your BIOS setup, usually in the Chipset Features Setup, for something called the AGP Driving Value. This value controls the timing of the AGP driver in Windows. The value you place here can make AGP4X stable. This value is a hex value from 00-FF.

In order to place a value here you might need to change another BIOS setup feature called the AGP Driving Control. This should appear with the AGP Driving Value. Set this to MANUAL if not already. The other option is AUTO.

Try setting this value to DA or EA. Try DA for a VIA Apollo Pro 133A motherboard. On a KT133 motherboard you might want to try E7.

Save your options and reboot your machine. Make sure you are running AGP4X and try some 3D games. Where they might have hung or crashed before they should now be running fine. If not, then go back into the BIOS Setup and try another value. I've found that values that end in an 'A' seem to work the best.