I have a System with 4 Core's (with HT and 16GB RAM.
What is the best combination? I have tested many combinations. The most combinations result in a exception.

More than 2 in minermemory crashes. 3 or 4 or 8 crashes. No entry in the eventlog. Windows 10 64bit and 16GB RAM.
This call works: HOdlcoin-qt.exe -gen=1 -minermemory=2