I'm buying a barebones server. The motherboard has slots for two processors; do I have to use them both, or like RAM, can I add another CPU when I need it? I don't want to spend $500 on another CPU if I don't have to.
Here is the board:
http://www.newegg.com/Product/Product.aspx?Item=N82E16816152097
The CPU:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819117234