New
#131
I had some problems installing 7000 as well and the same in 6936 right at the end when it seemed to be installing the display driver, the screen went blank the monitor went into standby and never came on again and the same as you I left it for a while but nothing and I had to reset the system.
The way I managed to get round it was to leave the partly installed OS on there and try the install again as the first thew of times it happened was after a format and every time it would go blank when it was installing the display driver.
So I have no idea what the problem is but that worked for me, I would prefer it I could have just installed fresh without the muck around but maybe as you found disabling the OC might have the same result and that is probably the best thing to do anyway when installing your OS.