@tedyun ,
@CaseySJ,
@djlild7hina @tucoboy,
@Loloflatsix
Thanks for the reply. I'll try this. The trouble I'm having at the moment is that the HDD doesn't seem to be recognised after I've updated the BIOS settings according to the page you sent. I tried again this morning, being very careful with everything, but got the same outcome.
I had a search around the forum last night for information and actually found one of your posts where you seemed to be having the same issue. At the time, you were on BIOS v1503 (which is what I'm currenlty on). I also noted that you upgraded to a later version some time afterwards. Could this be my problem?
The thing is I'm worried about not being able to get back into High Sierra on the 1070ti as I need that for work. Could updating the BIOS mess that up?
@Loloflatsix Thanks also for the reply. I just wanted to confirm that I'm using OC 0.7.4
Cheers,
Nick