I am having the same issue along with everyone else who got this machine in my department.
Processor Name: Quad-Core Intel Xeon
Processor Speed: 3 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 12 MB
Memory: 8 GB
I have reduced my RAM cache to 40%, and I think this is helping.
Has anyone found any concrete answers?