run prime95 for 20 mins on bleend and keep an eye on temps and if it jitters
your core temps are fine, dont know what cputin is for though
edit.
seems to be a comon problem.
"That means that HW Monitor is looking for a sensor where there isn't one, for some reason it has CPUTIN sensor mapped to the wrong location for your motherboard and since its not getting any data at all its reading as its max possible value (128 C)
Check your temps with some other programs, and check in BIOS to see what it says, you may have a faulty CPU temperature probe"
just use realtemp and/or coretemp