The issue here could be the load on this system might be different to the others. The applications that run on this system might be different.

If you want to solve the issue, then you got to try first and find out whether you can solve. If successful then spend your time on thinking and contemplating. Its not worth the time of us to provide you any suggestions when you are not ready to test them out!

This is my personal opinion on reading the entire thread once again. Don't think that we are not willing to help. If we need to help you for no cost, then you have to provide us with some test feedbacks. Then only we can eliminate to possibilities.

GOOD LUCK!

Sam