>>82290923 (OP)
The only thing I would check in hindsight is that the memory clock frequency is compatible with the moba with the QVL listing, I'm overclocked on a 3600 mhz frequency but did a memtest and it's okay, just has issues booting with the SATA ports plugged in (abrupt power loss with HDD).
>>82291248
CPUs and motherboards are usually sold as a packaged unit so that you don't deal with that unless you're specifically upgrading your CPU to another one with the same socket type and not your motherboard
>>82291334 >following lego instructions is hard
memory in dimm slot, everything else in it's PCIe slot. SATA cables for hard disk drives,
Thermal paste on CPU, with intercooler/heatsink. Mounting in case (fans) and formatting/installation of device drivers (monitor/graphics card).
>>82291425
yeah but random shit wouldnt go in some parts were ambiguous some screws i couldnt find then you put something wrong and have to undo it, i dont know there were tons of problems each would take like an hour to solve