A computer motherboard is one of the most hardest pieces of hardware to troubleshoot, because the symptoms are too similar to other pieces, the best way to make sure the motherboard or mobo is failing is to boot your computer with just crucial components connected (CPU, RAM, and motherboard), and see what happens, if it displays the same symptoms, then you have 3 suspects.If the problem is when booting Windows, then you will have to include the hard drive, but the hard drive troubleshooting symptoms are much different from that of a motherboard, so don't worry about this, just install it if your computer seems to pass the initial boot.Remember that troubleshooting your computer it's just like playing the game "Clue" you need to eliminate the suspects in order to find the culprit. Keep in mind that it's very rare for a motherboard to fail especially if it's a good motherboard, so try every troubleshooting available. Reasons a motherboard fails ...
Networks, in general, and LANs, MANs, and WANs are defined.