CPU-Z is the said program that does that for you.
Not being an overclocking type this has been a bit of an eye opener for me to be honest. It seems to be mainly an overclocking and mobile Haswell issue.
I can only presume that companys get these laptops in sans memory and hard disk and make them up to order then punt them out.
Just given up on acers forever and got one of the ROG machines mainly because it has two fans and the hot air goes out the back.
Almost 2 years to the day and exactly the same time period to the day as my last one the CPU temp sits at 85deg C and the thing shuts down if you do anything remotely intensive Acer really are a heap of crap. Lets see if paying 250 quid more for the gaming ASUS does the trick. Oh and it turned up with 1.35v