Specifications

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If you are using a slotket card to connect a socketed processor to a slot motherboard, try getting a
different, better quality slotket.
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If you are using CAS3 memory, and can get access to some CAS2 memory, try using that instead (you
will have to set your BIOS to use CAS2).
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Try disabling AGP Fast Writes. Read the 'How can I enable or disable AGP Fast Writes?' question for
more information.
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Try forcing AGP1X. Read the 'How can I force AGP1X to be used instead of AGP2X or AGP4X?'
question for more information.
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If you have enabled AGP sidebanding with AGP Wizard or with an updated Video BIOS, try disabling it
again. This may help, but will reduce performance slightly.
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Try turning down the AGP Aperture to 16 or below, if your motherboard supports it - see the 'How can I
change my AGP Aperture size?' question. This will disable AGP, but may fix your problem. You can
also use DXDiag to disable AGP.
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Q. What's all this with the GeForce and the Athlon?
The GeForce has stability problems when using Athlon motherboards based on AMD's chipset and AGP2X,
due to 'poor filtering on the AGP strobe line'. AMD have released a new version of their motherboard chipset
which fixes this problem and this is now being implemented into motherboards. NVIDIA have released drivers
(3.62 onwards) that will disable AGP2X if an Athlon motherboard with an AMD chipset is detected.
However, some system configurations do not display this instability, and on these motherboards you can use
the athlon2xon.reg registry file to force AGP2X - available here:
http://www.geforcefaq.com/files/athlon2xon.reg
In Windows 2000 you can use the athlon2xonw2k.reg registry file to force AGP2X - available here:
http://www.geforcefaq.com/files/athlon2xonw2k.reg
This will enable the AGP2X support no matter what motherboard and chip you have. Creative have also
released a utility called AGP Wizard which enables you to force AGP2X support on any motherboard - see the
'What is and where can I get AGP Wizard?' question in this FAQ for more details.
If you have problems after enabling this, you will have to manually remove the registry key:
1. Run Regedit.
2. Go to HKEY_LOCAL_MACHINE\Software\NVIDIA Corporation\Global\System for Windows 9x/ME
or HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\nv4\Device0 for Windows 2000.
3. Delete the value named 'EnableIrongate2x'.
WARNING:
The registry file may not work if you have a 64MB Prophet II card. It seems that AGP2X is
disabled in the video BIOS for Athlons with that card. In addition you may not be able to use AGP2X if you
have the Athlon AGP sidebanding hack enabled as well in the 5.xx+ drivers.
I received the following information from from Louis-Philippe Dubrule:
For the Irongate based motherboards (AMD's 750 chipset), in order to be able to use AGP2X reliably you need
one that has the 751 IronGate Stepping 5 chipset (or later). One sign of this is if the board supports the
"SuperBypass" function or not.
You should always be able to use AGP2X if your motherboard is based on another non
-
AMD IronGate chipset,
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GeForce FAQ