Update time!
My daughter managed to break her 1TB Western Digital drive by dropping something heavy on the computer case, sending the read/write head into the disk at very high speed.
So, I headed down to Best Buy and managed to pick up an EVO Pro 250 GB SSD Drive and a GT 710 graphics card for $120. Opened up the beast, and gave it some open heart surgery, and now have High Sierra 10.13.1 running happily!
Steps:
1) Ensure you're using the latest BIOS -- F9 (For the H67N-USB3-B3)
2) Use Unibeast to create a new High Sierra installer as per the standard instructions.
3) Install new drive (or erase the existing one). Bear in mind the drive may not show up initially in Disk Utility, so you may need to tell Disk Utility to show all drives, exit, and then relaunch the utility to display the drive. Because I'm using an SSD, I formatted the drive as Apple's new AFPS format.
4) Install OS X, following prompts. It will reboot a couple of times, and if it's mid-install, you'll have to select the pre-boot drive that shows up in Clover.
5) Log in, and install Multibeast as per usual. You'll need to install legacy bootloader config, but for some reason you'll end up with a double Clover Boot loader (which I'd appreciate help with... more in a second).
6) Put the latest DSDT in your /EFI/Clover/ACPI/Patched/ folder. This will fix your sleep issues... (Well, not yours, the computes's).
7) In order to install the correct audio drivers, patch the DSDT for 889 -- you can find plenty of tutorials on here showing you how to do that. I cheated, by using the patch from Multibeast 6.1.0 -- and then creating /Extra/ before putting a copy of the DSDT.aml in /Extra/ for the patch to take place. Then I used EFI mounter to mount the EFI partition, and put the modified DSDT.aml into /EFI/Clover/ACPI/Patched.
And then, have a merry old time!
Now to the Clover Bootloader. I've updated to the latest version of Clover, and for some reason it (and the version that Multibeast installs in Legacy Mode) gives me TWO bootloaders.
On bootup, I'm given a blank Clover window, with no boot drives showing. If you EXIT that Clover, it gives a second instance of Clover where all my drives are visible.
I'm not sure why this is, but I'm okay to live with it for now as I'm out for the week for business and my daughter has a working computer.
Will update when I can.
Nikki.