ASUS P9X79 DELUXE Driver for Windows XP, Windows 7 x86/64, Windows 8 x86/64

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BIOS 3305
BIOS Utility
Chipset
MEI
AUDIO
LAN Intel
LAN Realtek
USB 3.0
IRST
Asmedia SATA
Marvell SATA
Bluetooth

ASUS Z9PE-D8 WS Driver for Windows XP, Windows 7 x86/64, Windows 8 x86/64

BIOS 3302
Chipset
Audio
VGA
LAN
USB 3.0
SATA
RAID

ASUS P9X79 Driver for Windows XP, Windows 7 x86/64, Windows 8 x86/64

Download ASUS P9X79 Driver for Windows XP, Windows 7 x86/64, Windows 8 x86/64

BIOS 3305
BIOS UTILITY
CHIPSET
AUDIO
LAN
USB 3.0
IRST
SATA

ASUS P4B266-C Driver for Windows

ASUS P4B266-C Driver for Windows

P4B266-C BIOS 1006
Aflash V2.21 Utility 
C-Media CMI8738/C3DX Audio Driver 
S3 USB
Intel(R) Chipset Software
P4B266-C User Manual (English)

ASUS P4B266 Driver for Windows

Download ASUS P4B266 Driver for Windows

P4B266 BIOS 1010
Aflash V2.21 Utility
C-Media CMI8738/C3DX Audio Driver
S3 USB
Intel(R) Chipset Software
NEC USB 2.0 Driver V2.1 
P4B266 User Manaul (English)

ASUS P4B Driver for Windows

Download ASUS P4B Driver for Windows

P4B BIOS 1012
Aflash V2.21 Utility 
Avance AC'97 Audio Drivers 
Intel(R) Chipset 
S3 USB
Intel Application Accelerator.
P4B User Manual (English)

ASUS M2N-X PLUS Driver for Windows

Download ASUS M2N-X PLUS Driver for Windows

M2N-X Plus BIOS 0507
Afudos version 2.29 
Nvidia Chipset Driver 
Realtek Audio Driver 
ATK0110 Driver 
HD Audio Patch KB888111 
ASUS Update V7.13.04 
ACPI driver for ATK 0110