I missed the AHCI part some how.
If you installed without AHCI and want to give it a try you first have to change the registry, then shutdown the computer, then enable AHCI in the bios. Then you can update Microsoft's generic AHCI drivers to your manufactuerers. If you change the BIOS without first modifying the registry it will blue screen everytime you try.
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LoginAnother thought on the other issues could possibly be related to power management incompatibilities or issues with the PSU. I'd try making sure all of that is disabled.