Check if the motherboard supports AGP as well... most likely motherboards nowadays support both
Minimum Requirements:
CPU: Pentium 4/Athlon XP or better
CPU Speed: 3 GHz
System RAM: 1 GB
Operating System: Windows XP/Vista
Video Card: 128 MB DirectX 9.0c Graphics Card with Shader 2.0 support (NVIDIA GeForce 6800+ / ATI Radeon 9800+)
Video RAM: 128 MB
Video Card 3D Acceleration: Required
Video HW Transform & Lighting: Required
Vertex Shader: Version 2.0
Pixel Shader: Version 2.0
Free Disk Space: 30GB
DVD: Quad-speed (4x) DVD-ROM drive