Im having an issue with the same setup, I have a KT600 soyo board, with a single 120gb seagate SATA drive, the board also uses the same chips the kt600 and the VT8237, it has the about the same issue while trying to install windows, it hangs at Checking disk, after I select to install windows. It does not move, system still respond, caps lock and what not... but the screen stays right where its at.... I Let it sit once for 4 hours, same screen.... Newest drivers, newest BIOS version, tried winXP and 2k... same issue... The drive is recognized by the built in raid utility... still, nothing seems to work.... Any ideas...