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.
Hmmm, windows might be objecting to allocating more than 4GB of memory on a single process.
Try these configs -
for max performance
HOdlcoin-qt.exe -gen=1 -minermemory=2 -genproclimit=8
to leave some CPU free for other stuff
HOdlcoin-qt.exe -gen=1 -minermemory=3 -genproclimit=2