4 GB Mem
HD Hitachi HDS721050CL
Not sure what you meant by the rev. part, but on CpU Z there are two, Chipset Rev. 12 Southbridge Rev 06. Tried Checkdisk and passmark(short test) and shows no error. I'm gonna try the link you gave also
Don't worry, that system isn't affected by the SATA chipset bug. Report back with the results of the hdd test.