Settings to trap uninitialized variable

I would like to know if there is some online help or useful thread/topic where i could get info about which options to set to get the compiler to break with the message variable has been used without being initialized.

I am now using Intel(R) Visual Fortran Compiler 16.0.3.207 [Intel(R) 64] and have the feeling that it does not trap as much as in Intel(R) Visual Fortran Compiler XE for IA-32, version 14.0.1 Package ID: w_fcompxe_2013_sp1.1.139.

With 14.0.1 sp 1 1.139 i a messge was also issued in release and debug now it seem it goes over silently.

If stack data are set to SNAN will the trapping be better ?

Many thanks