Linux does not support winraid arrays, such as what your SATA system is providing. Just straight sata access to single disks. If you want sata raid, go get a hardware card from LSI (more than 2 ports) or 3ware.
Your CPU supports "HyperThreading" which is a second set of processing gates on the physical processor. Thus it appears to the OS as a multiprocessor system. Boot the smp kernel, and cat /proc/cpuinfo