Windows Vista: Code 43 Error in Device Manager in Systems with ATI AGP Cards and Nforce3

Answer ID 2041   |    Published 02/13/2007 12:57 PM   |    Updated 06/18/2007 04:24 PM

Windows Vista: Code 43 Error in Device Manager in Systems with ATI AGP Cards and Nforce3 Chipset Motherboards

Symptoms:
Attempting to install the graphics driver on a system containing an NVidia NF3 chipset and an ATI AGP graphics adapter may result in the driver failing to install and the 3D engine not activating.

In Windows Vista 32bit or 64bit versions, the Device Manager will show a (!) mark and the AGP card will operate in PCI mode only.  When the properties of the device are shown, the error code will show as code 43.

Solution:

NVIDIA has determined that this issue is specific to nForce3 based systems utilizing AMD Athlon X2 dual core CPU's and running Microsoft Vista.  The NVIDIA nForce3 core logic predates multi-core CPU's and was not designed to support them.  As a result this problem will not be resolved via drivers or system bios updates.  At this time the only known solutions to this issue under Microsoft Vista is to use a single core processor, or to upgrade to a newer motherboard platform.

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