What's the exact motherboard model?
Running 4500 memory is just nuts, hat's off to you if you can get them running.
Blue screening i bet my bottom dollar its the ram.
Did you enable xmp and dram is running at 1.45v?
Your temps are ok, wouldn't go over 80c. Though running the Cpu's memory controller that high would add more heat, how much more I'm not sure but there would be an increase compared to say 3200.
Run memtest64 via USB boot to establish memory stability.
If it throws errors within the 1st or 2nd test then youll have to tweak the bios settings further. As in adding more cpu voltage and manually configure ram voltage and timings yourself rather than use xmp.