Just curious. I am purchasing an identical processor to put into the second slot of my Dell PE 2900. The OS was installed with only one CPU installed. The OS is Server 2008 R2. If I put in the second Processor do I need to reinstall the OS?
Also, last but not least, I am purchasing this CPU from a vendor that I trust but I am not certain that all I need to install is the CPU and Heat Sink. Do I need to install anything else? In the old days you had to have a special module installed on the motherboard that let you have two CPU's. Is that true today or can I just plop in the CPU and heat sink and be happy?