Description: iMac (early 2008) Goes to black screen after install El Capitan. Only in safe mode is where I can see that it has been installed.

When installing El Capitan from bootable USB, the Apple logo comes up then the screen goes black. I can hear the cpu running for 2 mins then silence.

I have tried everything!!!! reseting the pram etc. It’s when I go into safe mode that I find that it has been installed.

It was all working before on El Capitan (it’s second hand (bought from

eBay 2 years ago) but last week, whilst going off to do something, I

saw the normal screen saver but it was frozen. I turned it off then on

again and ever since I’ve had the black screen of death but not when I go into disk utility, safe mode etc. First aid and single mode say that the hard drive is ok.

I backed up the files, wiped the drive and did the whole recovery, single user, all the start up suggestions. I ran repairs, the sbin fsck thingy in single mode, looked at at a hundred youtube vids (changed the date in the terminal etc).

I know it’s a very very old obsolete iMac but I thought I’d give it a last fighting chance. Help is very much appreciate!! Thanks guys!!!