Thanks for the information. The minidumps folder hasn't created yet, the only crash since the reinstall was testing 1 game without the Adrenalin software - by using the extract method by spydertracks above to have windows install the drivers instead. I've since used DDU to reinstall Adrenalin so I can keep look at the graphs.Kernel dumps (C:\Windows\Memory.dmp) are only written by the kernel when the system halts - a BSOD. Minidumps (in C:\Windows\Minidumps) are taken by drivers, Windows system components, and even by applications, and the failure is usually recovered and the system continues.
Thus you may find minidumps even if the system doesn't BSOD. Those would be useful too.
I'm not sure it will crash again without launching a game. Everything else has been extremely fast, it's only happened when there's been a bit of load on the GPU. I used User Benchmark yesterday before posting & almost everything returned 300-500%, it was only the GPU (38% - that crashed all bar 1 of the visuals) & the primary HD (~90%) that scored below 100% on it.