i find a site can download DELL Inspiron N5110 Windows 7 64-bit Drivers esay.
download link: DELL Inspiron N5110 drivers
the drivers list:
DELL Inspiron N5110 Audio Driver:
IDT 92HD87B1 (83375)Driver For DELL Inspiron N5110(6.10.0.6324, A02)
DELL Inspiron N5110 Chipset Drivers:
Intel Management Engine InterfaceFor DELL Inspiron N5110(7.0.0.1118, A00)
Intel HM67 Express Chipset Family (79176)For DELL Inspiron N5110(9.2.0.1019, A00)
Realtek RTS5138 Card Reader For DELL Inspiron N5110(6.1.7600.30126, A00)
Renesas USB3.0 Host Controller (127057) For DELL Inspiron N5110(2.0.32.0, A00)
DELL Inspiron N5110 Input Device Drivers:
Alps Alps TouchPadFor DELL Inspiron N5110(7.1207.101.225, A03)
DELL Inspiron N5110 network Drivers:
Dell Wireless 1702 802.11 b/g/n, BT3.0+HS (180903)For DELL Inspiron N5110(9.2.0.115, A00)
Dell Wireless WLAN 1502 Half Mini-CardFor DELL Inspiron N5110(9.1.0.328, A00)
Dell Wireless 1701 Bluetooth v3.0+HSFor DELL Inspiron N5110(6.4.0.620, A00)
Intel Centrino Advanced-N 6230 Bluetooth Adapter (77584)For DELL Inspiron N5110(1.0.67.20443, A00)
Dell Dell DW1701 802.11 b/g/n For DELL Inspiron N5110(5.100.82.15, A00)
Intel Intel (R) WiMax Link 6150 For DELL Inspiron N5110(7.031.1025.2010, A00)
Realtek RTL8105E-VB 10/100 Ethernet Controller For DELL Inspiron N5110(7.034.1130.2010, A01)
Intel Centrino Wireless-N 1000/Wireless-N 1030/Advanced-N 6230 (105962) For DELL Inspiron N5110(14.0.0.113, A00)
DELL Inspiron N5110 Video Drivers:
AMD ATI Mobility Radeon HD 6470 (75680) For DELL Inspiron N5110(8.811.1.0, A01)
Intel HD Graphics For DELL Inspiron N5110(15.21.8.64.2279, A01)
nVidia GeForce GT 525M (110671)For DELL Inspiron N5110(8.17.12.6683, A01)