It's always worth giving components a thorough run-through if you're at all suspicious - all sorts of tools can try to flag errors but it's not the same as running a full-blown scan.
Some screens here...as stated, inherited this rig from a mate who just left it in his room lol...it appears there is a CPU overclock being run from what I can tell...slight as it is: http://valid.x86.fr/u0djps DRAM Volt is 1.5V and QPI DRAM Core Volt is 1.2V http://www.techpowerup.com/gpuz/details.php?id=nyybd
