Which motherboard are you using? Also which card are you using?
AGP was geared to be used with Intel II architectures or DIB architectures.
I think most motherboards support AGP.. unless your pc is pre intel II/
The following is a list of companies who are members of the AGP Implementors Forum. You can be sure that you will see these companies use AGP products:
3D Labs
3Dfx Interactive
A-trend Technology, Co., Ltd.
ABIT Computer Corp.
Accelerix, Inc.
AccelGraphics
Acer, Inc.
Acer Laboratories
Advanced Logic Research
Advanced Micro Devices
ALI USA
AMP America
Analog Devices
APEX
Arcobel Graphics B. V.
ARK Logic, Inc.
AST Research
ASUSteK Computer
ATI Technologies
Aura Vision
BCM Advanced Research, Inc.
Canopus Corporation
Canopus Co., Ltd.
Chaintech Computer
Chips and Technologies
Cirrus Logic
Compaq Computer
Cornerstone Imaging
Creative Labs
Crucial Technology, a division of Micron
Cyrix Corporation
Dell Computer
Densan Co., Ltd.
DFI
Diamond Multimedia Systems
Digital Equipment
Dynamic Pictures
EPoX Computer
Equator Technologies
Evans & Sutherland
First International Computer
Fujitsu Limited
Fujitsu Limited/PC & AV System LSI Division
Fujitsu Microelectronics
Fujitsu Personal Systems
Future Integrated Systems
FuturePlus Systems
Gateway 2000
Gainward Co., Ltd.
Giga-Byte Technology
Hal Computer Systems
Hewlett-Packard
Hewlett Packard GmbH
Hitachi
Hitachi, Omika Works
Hitachi Micro Systems
IBM
Infotronic America
IndusConsulting Services, Inc.
Integraphics Systems
Integrated Device Technology
Integrated Micro Solutions
Integrated Technology Express
Intel
Intergraph
I-O Data Device, Inc.
Jace Technologies, Inc.
Joytech Computer Co., Ltd.
Leadtek Research, Inc.
LSI Logic
Lung Hwa Electronics Co., Ltd.
Macronix America
Matrox Graphics
Mediamatics
Media Reality Technologies
Mentor Arc
Micron Electronics
Micronics Computers, Inc.
Miro Computer Products
Motorola
National Semiconductor
NEC Technologies
NEC Electronics
NeoMagic
Number Nine Visual Technology
nVidia Corp.
Oak Technology
OKI Electric Industry
OPTi
Packard Bell NEC, Inc.
PALIT Microsystems, Inc.
Philips Semiconductors
Prolink Microsystems Corporation
Proton Co., Ltd.
Quantum Designs
Radius
Raycer Graphics
REAL 3D
Reliance Computer
Rendition
S3
Samsung Electronics
Samsung Information Systems
Samsung Semiconductor
SEGA
SGS Thomson
Shuttle, Inc.
Siemens Nixdorf
Silicon Engineering
Silicon Integrated Systems
Silicon Magic Corp.
Silicon Motion
SMOS Systems
Sony Electronics
SP3D Chip Design GmbH
Standard Microsystems
STB Systems
Stellar Semiconductor, Inc.
Sun Microsystems
Super Micro Computer
Synopsys, Inc.
Tekram Technology Co., Ltd.
Texas Instruments
Toshiba - Japan
Toshiba American InfoSystems
Transmeta
Trident Microsystems
TriGem Computer
TriTech Microeletronics
Tulip Computers International
ULSI
Via Technologies
VideoLogic
Vingmed Soung A/S
Virtual Chips
VLSI Technology
VSIS, Inc.
VTech Computers, Ltd.
WinBond Electronics
Winbond Systems Laboratory