Speccy latest V1.29 show error system temperature 120C on H81M-K.
Speccy may remove system termperature or just show N/A instead of error value.
Manufacturer : ASUSTeK COMPUTER INC; Model : H81M-K Version Rev : X.0x Chipset Vendor : INTEL Chipset Model : H81 SIO : NCT5535D
Another image soure:
Link: http://i.imgur.com/naNjKbi.jpg?1