Ok i have an Asus A8N-sli premium mobo, Windows Xp service pack 2 installed. My problem is that when I tried to put a Sata drive in, windows wont see it, Bios does, windows, no. Ive tried the whole thing in Windows install and my computer wouldn't sense that I pressed f6. So thats Number one problem, now the next one is that I have a WD 300G HD for my Slave, and Windows wont see that either. Used to see it, but now it dosn't.I noticed that in Device manager that were at the same location as my other drives 1(1) or 0(0) like that, not sure of that means anything. Well there my problem guys! thanks for the help!