详细下载地址列表:
主板芯片组驱动
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/nonemachine/200962017562765471/G450_G550_XP_Chipset.exe

NVIDIA显卡驱动
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/notebook//200992819471311691/G450_G550_XP_VGA_Nvidia.exe

声卡补丁程序
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/notebook/20081089494618939/KB888111.exe

声卡驱动
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/notebook//200971614145045810/G450_G550_XP_Audio.exe

网卡驱动
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/nonemachine/20096201882763756/G450_G550_XP_LAN.exe

电源管理软件
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/notebook//2009799484292443/G450_G550_XP_PM.exe

触控板
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/nonemachine/200962018202545437/G450_G550_XP_TouchPad.exe

无线网卡
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/notebook//200991512131980462/Broadcom802.11_Wlan_XP.exe

读卡器
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/nonemachine/20096201812693618/G450_G550_XP_CardReader.exe

摄像头
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/notebook//200992819581596351/G450_G550_XP_Camera.exe

IMSM驱动
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/nonemachine/20096201832455452/G450_G550_XP_IMSM.exe