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I am running FC5. Recently our IS department changed my motherboard due to NIC failure. Now the monitor shows 4 CPUs while there are only 2 in reality. It was normal before the motherboard change. In system monitor, all the four CPUs actually shows some percentage of usage when a big program runs. I haven't noticed any performance change yet. Anyone knows why this happens?
Do you mean hyper thread? I checked the BIOS, it is enabled. The problem is, I only have two CPU on the board. Why the system monitor shows 4 working CPU?
The system is dell precision 470, dual Xeon 3.4 GHz.