The 5 beeps you hear during startup indicate a CPU error, which could be related to the compatibility issue between your 9th generation Intel Core i5-9600KF CPU and the H310M S2H 2.0 motherboard, which only supports 8th generation CPUs out of the box.
It is possible that your motherboard needs a BIOS update to support your 9th generation CPU properly. You can check the manufacturer's website to see if there are any BIOS updates available for your motherboard that add support for your CPU. You will need to download the BIOS update and follow the manufacturer's instructions to install it.
If a BIOS update doesn't resolve the issue, you may need to consider upgrading to a motherboard that supports 9th generation CPUs out of the box. It's important to note that not all motherboards that support 9th generation CPUs will be compatible with the i5-9600KF specifically, so be sure to check the CPU compatibility list for any motherboard you're considering.
In any case, it's always a good idea to double-check all connections and components when troubleshooting a hardware issue like this. https://www.nexusiceland.org/