I tried upgrading my CPU fan from the stock intel one that comes with your CPU to a better one. After finishing the installation of the new fan my computer would start but no display would come up. I made sure there wasn’t a problem with any connections or power supply but everything seems to be in order. Upon closer inspection my MSI motherboard has a debug LED that holds red on DRAM and flicks to CPU for a fraction of a second before holding red again on DRAM again. I looked into the light and it tells me either my CPU or RAM is not being detected. I took apart the cooling fan and checked the pins on the motherboard for the CPU and there aren’t any that are bent. As for the ram I tried using only one stick in the best DIMM slot and the problem persists. I also cleared my CMOS as an extra resort. If anyone has a solution for me it would be greatly appreciated. Thanks