Asus P5QC cannot install Windows

[Odyss]

I've been using my motherboard Asus P5QC for around 2 yrs. Recently it has a problem with blue Screen on windows 7. At first I thought it might be Virus or Hard Disk problem or RAM. But I cleaned all the viruses ( I thought) and the Hard Disk and its RAM doesnot had any problem. I was trying to install Windows Xp Professional today, during setup when reaching Device configuration on installation, there goes a very long beep that does not won't go silent. As soon as it goes beeeeeep, my computer hang. After several of trying again, it goes just like that. Please Please, Help me.