With lastest kernel source code, I can no longer boot into workable state: ad0: WRITE command timeout tag=3D0 serv=3D0 -resetting ata0: resetting devices .. done ad0: WRITE command timeout tag=3D0 serv=3D0 -resetting ata0: resetting devices .. then dead. Here is the motherboard specification, http://www.tyan.com/products/html/tiger230t.html David Xu