High Sierra on P9X79 pro + 3960X + RX Vega 56 (no installation menu, only mac os utility)

[NEO-ART]

Hello everyone,

I try to install High Sierra with unibeast on the x79 plateform : P9x79 pro
my CPU is a 3960X
my CG is a RX Vega 56 (Sapphire)

What I do :

1 - USB Lauch
Installation usb Unibeast with High Sierra (13.0.66 app store) in Legacy Mode.

Bios options :
boot / Secure Boot : Other OS / USB Support : Partial Initialization / Boot Device Control : UEFI and Legacy OpROM
Advanced / Intel VT-d : disabled / EHCI Hand-off : Disabled / SATA : Mode AHCI

With this option save and restart :
press F8 to lauch the boot device and choose the USB (with not UEFI before the name, because clover crash when he try to lauch the installation and reboot alone)

2 - Clover
Arrived on Clover, to start I finally use this Boot arguments and it's work :
-v dart=0 npci=0x3000 cpus=1

3 - High Sierra Installation (UPDATE)
That's my problem, I have a strange resolution, in a tiny square
I have the installer but it's hidden, I can grab it out of the screen and came back but a new difficultie to lauch the installation : I can see the install button

Do you know why ?
How to force the Vega 56, use a correct definition ?

 

[NEO-ART]

Succes,
just rebuilt a USB unibeast with UEFI (not legacy) and
press F8 a start to lauch the boot device and choose the USB with UEFI before the name and it's work !!!
I try with no convertion on my SSD to stay in HFS+ no problem
(Two reboot, very long installation but it's work)

 

[showkingpup]

Succes,
just rebuilt a USB unibeast with UEFI (not legacy) and
press F8 a start to lauch the boot device and choose the USB with UEFI before the name and it's work !!!
I try with no convertion on my SSD to stay in HFS+ no problem
(Two reboot, very long installation but it's work)

can you upload Efi folder..?

 

[NEO-ART]

can you upload Efi folder..?

Yes it's here, sorry don't see your question before.
It's for 10.13.1 (in 10.13.2 it's working but the vega fan speed is turn in High speed all the time, I try to fix it)

So !
I don't use MultiBeast yet.
In my EFI, the clover kext section, you find a VoodooTSCSync for 6 cores (i7 3960x), so change it if you dont' have a 6 cores.

To improve the stability of the system (some randomly crash has happen) I use :
- iMac19,1 profile
- Update for the last stable BIOS for the P9x79 pro (Version 4701)
- I turn on the Trim with this method directly :

 

[showkingpup]

Yes it's here, sorry don't see your question before.
It's for 10.13.1 (in 10.13.2 it's working but the vega fan speed is turn in High speed all the time, I try to fix it)

So !
I don't use MultiBeast yet.
In my EFI, the clover kext section, you find a VoodooTSCSync for 6 cores (i7 3960x), so change it if you dont' have a 6 cores.

To improve the stability of the system (some randomly crash has happen) I use :
- iMac19,1 profile
- Update for the last stable BIOS for the P9x79 pro (Version 4701)
- I turn on the Trim with this method directly :

Did you upgrade to 10.3.4?

 

[NapalmCandy]

I have problems in after installation to do bootable the High Sierra partition, I can boot in if I press F8 and select the Hard Drive to boot, it boots perfectly, but if I set on BIOS that I want to boot on that disk drive by default, then it don't boot. Don't works on any internal drive, except on one that I already installed Sierra in the past. Also can boot on any USB sticker with EFI partition.

So, how I can solve it? I tried to install Chameleon and Clover legacy without luck