http://support.asus.com/Download.aspx?SLanguage=en &m=M4A78-E&p=1&os=
1. Chipset: AMD Chipset Program Driver WHQL V3.0.704.0 (Package Version 8.561) for Windows 32/64bit Vista.
2. Lan: ATHEROS L1E Driver V1.0.0.45 for Windows 32bit XP/64bit XP/32bit Vista/64bit Vista/32bit Win7/64bit Win7.