用Rivatuner軟體
http://www.guru3d.com/rivatuner/
Main--Target Adapter-LowLevel setting Customize AGP選項去設定(頻率在此設定)startup setting AGP4X
Main-Driver settings-System tweaks Compatibity-Enable AGP4X打勾(頻率不要設)
Settings-Riva tuner startup setting-Run at startup打勾

反覆檢查設定確認是否是AGP4X
控制台-顯示卡-進階-顯卡型號就有AGP訊息