AFUDOS 2.21
http://p5wdh.de/downloads/asus/bios/AFUDOS221.zip

BIOS 0701
http://p5wdh.de/downloads/asus/bios/p5wdh701.zip

BIOS 0801
http://p5wdh.de/downloads/asus/bios/p5wdh801.zip

BIOS 0903
http://p5wdh.de/downloads/asus/bios/p5wdh903.zip

BIOS 1010
http://p5wdh.de/downloads/asus/bios/p5wdh1101.zip