Small Memory Dump records the smallest amount of information that will help identify the crash problemIt is a file containing the most important parts of a crashed application.A history of these files is stored in the directory listed under Small Dump Directory.
How to view:-
Open Control Panel>System>Advanced>Settings under Startup and Recovery.There you will find small dump directory location (%SystemRoot%\Minidump).
Related KB Article:-
How to read the small memory dump files that Windows creates for debugging