Chimera to Clover, cannot get rid of Chimera

[mrbrdo]

I am trying to use Clover because my GPU (AMD Radeon R9 280X) does not work with Chimera (after apple logo the screen is blank). It works fine with Clover however, which I tried by booting it via a USB stick.

Now I am trying to install Clover to my HDD. I actually have a Fusion Drive (SSD+HDD).
I tried running the Clover installer, installing to EFI partition, or installing it normally, and even used fdisk440 to copy boot0af directly to the disk, but when I reboot it just loads Chimera again.

How can I make it use Clover? I don't remember exactly how I installed Chimera.

 

[mrbrdo]

By some more dd-ing and fdisk-ing I managed to come to a state where I get "boot1: error" now. Not sure if it's Clover or Chimera though. I think it started once I dd-ed Clover's boot1h file into my "Boot OS X" partition (created automatically when making the fusion drive, and that is where I had Chimera installed before I think).