If you're after an Intel-based computer, we'll walk you through how to identify what generation the Intel CPU is.
Examine how your motherboard is installed. Check that you used the standoffs ... If it’s not compatible with the CPU or some other component you’ve installed, it won’t turn on.
Hardware and software information is essential to know compatibility ... party applications like CPU-Z or SiSoftware Sandra to find out about the make and model of the motherboard as you cannot ...