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#11
Okay, well, very rarely does BCCode x124 refer to software. It is possible though. After your HDD test, go into the BIOS, system health, and take note of temps and post back with them.
Are you positive you seated the cooler properly?
Your voltages all looked good.
If all else fails, reformat the HDD, without a partition and attempt to reinstall. First, inspect your installation media. If it is dirty, carefully clean it with a soft cloth. If it is scratched, do not use it.
EDIT: Do not use the MoBo manufacturers installation disk. Go to your MoBo manufacturers website and obtain all drivers directly from your other pc and install them from a flash drive.