Hello everyone, Soon I will try to build my own computer. I'm really new to this so I will need some explanation before ordering all component : First : The Motherboard, what is it used for? What makes a Motherboard better than another one? Does it has some mesure I can base motherboards performance on (like amount of core and GHz for CPU)? Second : The CPU, is there a way to have multiple CPU or a computer can have a maximum of only one CPU? This is to know if I can make the computer so it can have two CPU to add one later or if I must buy the best CPU available for my budget. Third : The GPU, what makes a GPU better than another one? I know there are many graphics card on the market but I would like to know what makes them better based on their specs. For exemple, whats makes GTX 980 4GB better than GTX 960 4GB. Is it the GPU amount of GHz? the amount of core? Fourth : GPU again, what is required in order to have multiple graphics card? I know it is based on bus port, but what makes a computer to have more bus than another one? The motherboard? Some kind of graphics board? Also, I know that two graphics card means two screen, but do I need something special to have those two graphics card working on the same game or is it about software not about hardware? Fifth : The RAM, if I buy for 32 GB of RAM, is it all I have to care about, the amount of GB? Or the speed (MHz) is that important for RAM? I mean, will I see a big difference between 32 GB 1GHz and 32GB 1,8GHz? Sixth : The HDD and SSD, well, the HDD is alright for me, but the SSD... I never used one before. But I heard they run a lot faster than HDD. So when it's time to load game, it takes a lot less time. I'm for it and would like to get a SSD. But I heard that if I take something like 1 TB for a SSD, I would be very disappointed because it would run slower, almost like a normal HDD. Is that true? If it is, what's the best size for a SSD? Finnaly : The PSU, if I want multiple graphics card, a very powerful CPU, a lot of RAM, a good HDD and a SSD, what do I need as PSU? For example, if I takes those as requirement : CPU requiring 500 watt 2xGPU requiring 600 watt each RAM requiring 300 watt What is required? 500+600+600+300+every single requirement? or only the biggest ammount, 600 watt in this case? Also, if I want more GPU later, is there a way to have more wire on the PSU so I can link more of them?